2024Article de journal ER5 Auteurs : Thonon, Maxime; Fraisse, Gilles; Zalewski, Laurent; Pailha, Mickael Simultaneous charging and discharging processes in latent heat thermal energy storage: A review Dans: Thermal Science and Engineering Progress, vol. 47, p. 102299, 2024, (ACL). Liens @article{thonon:hal-04386513,
title = {Simultaneous charging and discharging processes in latent heat thermal energy storage: A review},
author = {Maxime Thonon and Gilles Fraisse and Laurent Zalewski and Mickael Pailha},
url = {https://hal.science/hal-04386513},
doi = {10.1016/j.tsep.2023.102299},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {Thermal Science and Engineering Progress},
volume = {47},
pages = {102299},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2024Article de journal ER5 Auteurs : Fraisse, Gilles; Thonon, Maxime; Zalewski, Laurent; Leconte, Antoine; Francois, Eric; Pailha, Mickael; Cloet, David; Moracchioli, Robert; Traonvouez, Luc; Franquet, Erwin Performance comparison of two PCM candidates for new concept of compact thermal storage in solar DHW systems Dans: Journal of Energy Storage, vol. 86, no. Part A, p. 111198, 2024, (ACL). Liens @article{fraisse:cea-04512613,
title = {Performance comparison of two PCM candidates for new concept of compact thermal storage in solar DHW systems},
author = {Gilles Fraisse and Maxime Thonon and Laurent Zalewski and Antoine Leconte and Eric Francois and Mickael Pailha and David Cloet and Robert Moracchioli and Luc Traonvouez and Erwin Franquet},
url = {https://cea.hal.science/cea-04512613},
doi = {10.1016/j.est.2024.111198},
year = {2024},
date = {2024-01-01},
urldate = {2024-01-01},
journal = {Journal of Energy Storage},
volume = {86},
number = {Part A},
pages = {111198},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2024Article de journal ER5 Auteurs : Cherif, Yassine; Zalewski, Laurent; Sassine, Emilio; Groulx, Dominic Use of the inverse method to determine the thermal properties of liquid n-octadecane accounting for natural convection effect Dans: International Journal of Heat and Mass Transfer, vol. 231, p. 125864, 2024, (ACL). Liens @article{cherif:hal-04626668,
title = {Use of the inverse method to determine the thermal properties of liquid n-octadecane accounting for natural convection effect},
author = {Yassine Cherif and Laurent Zalewski and Emilio Sassine and Dominic Groulx},
url = {https://hal.science/hal-04626668},
doi = {10.1016/j.ijheatmasstransfer.2024.125864},
year = {2024},
date = {2024-10-01},
urldate = {2024-10-01},
journal = {International Journal of Heat and Mass Transfer},
volume = {231},
pages = {125864},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2022Article de journal ER5 Auteurs : Toifane, Hachmi; Tittelein, Pierre; Cherif, Yassine; Zalewski, Laurent; Leuck, Hervé Thermophysical Characterization of a Thermoregulating Interior Coating Containing a Bio-Sourced Phase Change Material Dans: Applied Sciences, vol. 12, no. 8, p. 3827, 2022, (ACL). Liens @article{toifane:hal-03654178,
title = {Thermophysical Characterization of a Thermoregulating Interior Coating Containing a Bio-Sourced Phase Change Material},
author = {Hachmi Toifane and Pierre Tittelein and Yassine Cherif and Laurent Zalewski and Hervé Leuck},
url = {https://hal.archives-ouvertes.fr/hal-03654178},
doi = {10.3390/app12083827},
year = {2022},
date = {2022-04-01},
urldate = {2022-04-01},
journal = {Applied Sciences},
volume = {12},
number = {8},
pages = {3827},
publisher = {MDPI},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2022Article de journal ER5 Auteurs : Ibrahim, Rima Abou; Tittelein, Pierre; Lassue, Stéphane; Chehade, Fadi Hage; Zalewski, Laurent New Supply-Air Solar Wall with Thermal Storage Designed to Preheat Fresh Air: Development of a Numerical Model Adapted to Building Energy Simulation Dans: Applied Sciences, vol. 12, no. 8, p. 3986, 2022, (ACL). Liens @article{abouibrahim:hal-03714492,
title = {New Supply-Air Solar Wall with Thermal Storage Designed to Preheat Fresh Air: Development of a Numerical Model Adapted to Building Energy Simulation},
author = {Rima Abou Ibrahim and Pierre Tittelein and Stéphane Lassue and Fadi Hage Chehade and Laurent Zalewski},
url = {https://hal.archives-ouvertes.fr/hal-03714492},
doi = {10.3390/app12083986},
year = {2022},
date = {2022-04-01},
urldate = {2022-04-01},
journal = {Applied Sciences},
volume = {12},
number = {8},
pages = {3986},
publisher = {MDPI},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2022Proceedings Article ER5 Auteurs : Zalewski, Laurent; Thonon, Maxime; Fraisse, Gilles; Cherif, Yassine; Chartier, Thierry Étude des performances énergétiques d'un stockage contenant un matériaux à changement de phase Dans: XVème Colloque International Franco-Québécois Ville et transition, Paris, France, 2022, (COM). Liens @inproceedings{zalewski:hal-04591172,
title = {Étude des performances énergétiques d'un stockage contenant un matériaux à changement de phase},
author = {Laurent Zalewski and Maxime Thonon and Gilles Fraisse and Yassine Cherif and Thierry Chartier},
url = {https://hal.science/hal-04591172},
year = {2022},
date = {2022-06-01},
urldate = {2022-06-01},
booktitle = {XVème Colloque International Franco-Québécois Ville et transition},
address = {Paris, France},
note = {COM},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2021Article de journal ER5 Auteurs : Beaupere, Noe; Soupremanien, Ulrich; Zalewski, Laurent Influence of Water Addition on the Latent Heat Degradation of Sodium Acetate Trihydrate Dans: Applied Sciences, vol. 11, no. 2, p. 484, 2021, (ACL). Résumé | Liens @article{beaupere_influence_2021,
title = {Influence of Water Addition on the Latent Heat Degradation of Sodium Acetate Trihydrate},
author = {Noe Beaupere and Ulrich Soupremanien and Laurent Zalewski},
url = {https://www.mdpi.com/2076-3417/11/2/484},
doi = {10.3390/app11020484},
year = {2021},
date = {2021-01-01},
urldate = {2021-01-13},
journal = {Applied Sciences},
volume = {11},
number = {2},
pages = {484},
abstract = {To promote the development of thermal energy storage (TES), the sodium acetate trihydrate (SAT) presents interesting thermal properties. However, this material may suffer from aging throughout thermal cycles. Various solutions were explored in the literature to limit this aging, mainly based on the use of additives such as water. In this study, two samples were prepared. The first one consisted of raw SAT material whereas 3 wt.% of supplementary water has been added to the second one. They were then poured into 350 cm3 bricks, which were placed in an experimental test bench. After 35 cycles between 20 and 70 °C, a drop of about 10% of the latent heat was observed for the first sample. This behavior was like the literature data. For the second sample, the decrease of latent heat was more rapid (about 30%). Contrary to our expectations, the water addition seems not beneficial for the improvement of thermal stability. Interestingly, we noticed that the drop of the latent heat was fully reversible after sample stirring. This degradation might not be related to a thermal destructive mechanism but rather to a global segregation phenomenon. This segregation may be due to the breaking of hydrogen bonding between anhydrous sodium acetate and water, resulting in the separation of the two species.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
To promote the development of thermal energy storage (TES), the sodium acetate trihydrate (SAT) presents interesting thermal properties. However, this material may suffer from aging throughout thermal cycles. Various solutions were explored in the literature to limit this aging, mainly based on the use of additives such as water. In this study, two samples were prepared. The first one consisted of raw SAT material whereas 3 wt.% of supplementary water has been added to the second one. They were then poured into 350 cm3 bricks, which were placed in an experimental test bench. After 35 cycles between 20 and 70 °C, a drop of about 10% of the latent heat was observed for the first sample. This behavior was like the literature data. For the second sample, the decrease of latent heat was more rapid (about 30%). Contrary to our expectations, the water addition seems not beneficial for the improvement of thermal stability. Interestingly, we noticed that the drop of the latent heat was fully reversible after sample stirring. This degradation might not be related to a thermal destructive mechanism but rather to a global segregation phenomenon. This segregation may be due to the breaking of hydrogen bonding between anhydrous sodium acetate and water, resulting in the separation of the two species. |
2021Article de journal ER5 Auteurs : Thonon, Maxime; Fraisse, Gilles; Zalewski, Laurent; Pailha, Mickael Analytical modelling of PCM supercooling including recalescence for complete and partial heating/cooling cycles Dans: Applied Thermal Engineering, vol. 190, p. 116751, 2021, ISSN: 1359-4311, (ACL). Résumé | Liens @article{thonon_analytical_2021,
title = {Analytical modelling of PCM supercooling including recalescence for complete and partial heating/cooling cycles},
author = {Maxime Thonon and Gilles Fraisse and Laurent Zalewski and Mickael Pailha},
url = {https://www.sciencedirect.com/science/article/pii/S1359431121002064},
doi = {10.1016/j.applthermaleng.2021.116751},
issn = {1359-4311},
year = {2021},
date = {2021-01-01},
urldate = {2021-03-14},
journal = {Applied Thermal Engineering},
volume = {190},
pages = {116751},
abstract = {Phase change material (PCM) experiencing supercooling and phase change hysteresis are widely reported in the literature. However, only few studies model analytically such PCM, and they mostly focus on either supercooling or phase change hysteresis, but rarely on both phenomena. Moreover, partial phase change cycles, with an incomplete melting or solidification, are rarely considered even if these processes occur frequently in latent heat thermal energy storage (LHTES) systems. The objective of this study is to model analytically the thermal behaviour of a PCM experiencing supercooling and phase change hysteresis, for complete and partial phase change cycles. The developed method, based on a heat source term, enables to model the recalescence process during the solidification. Currently rarely considered, the influence of the cooling rate on the supercooling degree and the recalescence process is evaluated with a phenomenological approach. For partial cycles, the different behavior between heating and cooling is modelled with the hysteresis model “curve scale” already validated in literature. The experimental validation is carried out on a PCM brick sample, monitoring both the heat flux and the PCM temperature, which enables to characterize a greater mass of PCM compared to direct scanning calorimeter (DSC) analysis. The selected PCM undergoing supercooling during solidification is PEG6000, a polymer suitable for domestic hot water (DHW) storage. Results show a good agreement between experimental and numerical results for complete heating and cooling cycles. The behavior laws used to model the solidification with the supercooling and recalescence processes are validated for the cooling rate range tested. The modelling is also satisfactory concerning the experiments on partial solidification for different temperature plateaus. However, the model fails to correctly represent the thermal behavior for a cooling process after a partial melting of the PCM. To conclude, the developed model enables to represent accurately the thermal behaviour of a PCM experiencing supercooling and phase change hysteresis for most of the phase change processes studied. Investigations on the thermal conditions influencing the crystalline structure and the effect on the phase change dynamic are suggested to improve supercooling modelling. The developed model needs to be validated for PCM having a higher supercooling degree, such as sugar alcohols or salt hydrates.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Phase change material (PCM) experiencing supercooling and phase change hysteresis are widely reported in the literature. However, only few studies model analytically such PCM, and they mostly focus on either supercooling or phase change hysteresis, but rarely on both phenomena. Moreover, partial phase change cycles, with an incomplete melting or solidification, are rarely considered even if these processes occur frequently in latent heat thermal energy storage (LHTES) systems. The objective of this study is to model analytically the thermal behaviour of a PCM experiencing supercooling and phase change hysteresis, for complete and partial phase change cycles. The developed method, based on a heat source term, enables to model the recalescence process during the solidification. Currently rarely considered, the influence of the cooling rate on the supercooling degree and the recalescence process is evaluated with a phenomenological approach. For partial cycles, the different behavior between heating and cooling is modelled with the hysteresis model “curve scale” already validated in literature. The experimental validation is carried out on a PCM brick sample, monitoring both the heat flux and the PCM temperature, which enables to characterize a greater mass of PCM compared to direct scanning calorimeter (DSC) analysis. The selected PCM undergoing supercooling during solidification is PEG6000, a polymer suitable for domestic hot water (DHW) storage. Results show a good agreement between experimental and numerical results for complete heating and cooling cycles. The behavior laws used to model the solidification with the supercooling and recalescence processes are validated for the cooling rate range tested. The modelling is also satisfactory concerning the experiments on partial solidification for different temperature plateaus. However, the model fails to correctly represent the thermal behavior for a cooling process after a partial melting of the PCM. To conclude, the developed model enables to represent accurately the thermal behaviour of a PCM experiencing supercooling and phase change hysteresis for most of the phase change processes studied. Investigations on the thermal conditions influencing the crystalline structure and the effect on the phase change dynamic are suggested to improve supercooling modelling. The developed model needs to be validated for PCM having a higher supercooling degree, such as sugar alcohols or salt hydrates. |
2021Article de journal ER5 Auteurs : Zalewski, Laurent; Biteau-Ailhas, Elorn; Defer, Didier; Brachelet, Franck Active Thermal Method Applied to the In Situ Characterization of Insulating Materials in a Wall Dans: Buildings, vol. 11, no. 12, p. 578, 2021, (ACL). Liens @article{Zalewski2021,
title = {Active Thermal Method Applied to the In Situ Characterization of Insulating Materials in a Wall},
author = {Laurent Zalewski and Elorn Biteau-Ailhas and Didier Defer and Franck Brachelet},
url = {https://hal.archives-ouvertes.fr/hal-03505527},
doi = {10.3390/buildings11120578},
year = {2021},
date = {2021-12-01},
urldate = {2021-12-01},
journal = {Buildings},
volume = {11},
number = {12},
pages = {578},
publisher = {MDPI},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2021Article de journal ER5 Auteurs : Thonon, Maxime; Zalewski, Laurent; Gibout, Stéphane; Franquet, Erwin; Fraisse, Gilles; Pailha, Mickael Experimental Comparison of Three Characterization Methods for Two Phase Change Materials Suitable for Domestic Hot Water Storage Dans: Applied Sciences, vol. 11, no. 21, 2021, ISSN: 2076-3417, (ACL). Résumé | Liens @article{app112110229,
title = {Experimental Comparison of Three Characterization Methods for Two Phase Change Materials Suitable for Domestic Hot Water Storage},
author = {Maxime Thonon and Laurent Zalewski and Stéphane Gibout and Erwin Franquet and Gilles Fraisse and Mickael Pailha},
url = {https://www.mdpi.com/2076-3417/11/21/10229},
doi = {10.3390/app112110229},
issn = {2076-3417},
year = {2021},
date = {2021-01-01},
journal = {Applied Sciences},
volume = {11},
number = {21},
abstract = {This study presents an experimental comparison of three characterization methods for phase change materials (PCM). Two methods were carried out with a calorimeter, the first with direct scanning (DSC) and the second with step scanning (STEP). The third method is a fluxmetric (FM) characterization performed using a fluxmeter bench. For the three methods, paraffin RT58 and polymer PEG6000, two PCM suitable for domestic hot water (DHW) storage, were characterized. For each PCM, no significant difference was observed on the latent heat and the total energy exchanged between the three characterization methods. However, DSC and STEP methods did not enable the accurate characterization of the supercooling process observed with the FM method for polymer PEG6000. For PEG6000, the shape of the enthalpy curve of melting also differed between the experiments on the calorimeter—DSC and STEP—methods, and the FM method. Concerning the PCM comparison, RT58 and PEG6000 appeared to have an equivalent energy density but, as the mass density of PEG6000 is greater, more energy is stored inside the same volume for PEG6000. However, as PEG6000 experienced supercooling, the discharging temperature was lower than for RT58 and the material is therefore less adapted to DHW storage operating with partial phase change cycles where the PCM temperature does not decrease below 52 °C.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
This study presents an experimental comparison of three characterization methods for phase change materials (PCM). Two methods were carried out with a calorimeter, the first with direct scanning (DSC) and the second with step scanning (STEP). The third method is a fluxmetric (FM) characterization performed using a fluxmeter bench. For the three methods, paraffin RT58 and polymer PEG6000, two PCM suitable for domestic hot water (DHW) storage, were characterized. For each PCM, no significant difference was observed on the latent heat and the total energy exchanged between the three characterization methods. However, DSC and STEP methods did not enable the accurate characterization of the supercooling process observed with the FM method for polymer PEG6000. For PEG6000, the shape of the enthalpy curve of melting also differed between the experiments on the calorimeter—DSC and STEP—methods, and the FM method. Concerning the PCM comparison, RT58 and PEG6000 appeared to have an equivalent energy density but, as the mass density of PEG6000 is greater, more energy is stored inside the same volume for PEG6000. However, as PEG6000 experienced supercooling, the discharging temperature was lower than for RT58 and the material is therefore less adapted to DHW storage operating with partial phase change cycles where the PCM temperature does not decrease below 52 °C. |
2021Article de journal ER5 Auteurs : Ada, A. M. Omeme; Le, A. Tran; Toifane, Hachmi; Tittelein, Pierre; Zalewski, Laurent; Antczak, Emmanuel; Douzane, Omar; Langlet, T. Hygrothermal performance of hemp lime concrete embedded with phase change materials for buildings Dans: Journal of Physics: Conference Series, vol. 2069, no. 1, p. 012005, 2021, (ACL). Liens @article{omemeada:hal-03637241,
title = {Hygrothermal performance of hemp lime concrete embedded with phase change materials for buildings},
author = {A. M. Omeme Ada and A. Tran Le and Hachmi Toifane and Pierre Tittelein and Laurent Zalewski and Emmanuel Antczak and Omar Douzane and T. Langlet},
url = {https://hal-univ-artois.archives-ouvertes.fr/hal-03637241},
doi = {10.1088/1742-6596/2069/1/012005},
year = {2021},
date = {2021-11-01},
urldate = {2021-11-01},
journal = {Journal of Physics: Conference Series},
volume = {2069},
number = {1},
pages = {012005},
publisher = {IOP Publishing},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2020Article de journal ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Numerical and Experimental Investigations of Composite Solar Walls Integrating Sensible or Latent Heat Thermal Storage Dans: Applied Sciences, vol. 10, no. 5, p. 1854, 2020, (ACL). Résumé | Liens @article{leang_numerical_2020,
title = {Numerical and Experimental Investigations of Composite Solar Walls Integrating Sensible or Latent Heat Thermal Storage},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
url = {https://www.mdpi.com/2076-3417/10/5/1854},
doi = {10.3390/app10051854},
year = {2020},
date = {2020-01-01},
urldate = {2020-03-17},
journal = {Applied Sciences},
volume = {10},
number = {5},
pages = {1854},
abstract = {This article studies a composite solar wall with latent storage (TES) designed to heat rooms inside buildings during the cold season. No numerical model of the composite solar wall is currently available in the Dymola/Modelica software library. The first objective of this work is to develop one such model. The article describes the elementary components, along with the equations that allow modeling the heat transfers and storage phenomena governing both the thermal behavior and performance of the solar wall. This model was built by assembling various existing basic elements from the software’s “Building” library (e.g., models of heat transfer by convection, radiation and conduction) and then creating new elements, such as the storage element incorporating the phase change material (PCM). To validate this solar wall model, numerical results are compared to experimental data stemming from a small-scale composite solar wall manufactured in our laboratory, and the experimental set-up could be tested under real weather conditions. After verifying the level of confidence in the model, the energy performance of two solar walls, one with a conventional storage wall (sensible heat storage) the other containing a PCM (the same as in the experiment), are compared. The result indicates that the solar wall incorporating a PCM does not in this case release any more energy in the room to be heated.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
This article studies a composite solar wall with latent storage (TES) designed to heat rooms inside buildings during the cold season. No numerical model of the composite solar wall is currently available in the Dymola/Modelica software library. The first objective of this work is to develop one such model. The article describes the elementary components, along with the equations that allow modeling the heat transfers and storage phenomena governing both the thermal behavior and performance of the solar wall. This model was built by assembling various existing basic elements from the software’s “Building” library (e.g., models of heat transfer by convection, radiation and conduction) and then creating new elements, such as the storage element incorporating the phase change material (PCM). To validate this solar wall model, numerical results are compared to experimental data stemming from a small-scale composite solar wall manufactured in our laboratory, and the experimental set-up could be tested under real weather conditions. After verifying the level of confidence in the model, the energy performance of two solar walls, one with a conventional storage wall (sensible heat storage) the other containing a PCM (the same as in the experiment), are compared. The result indicates that the solar wall incorporating a PCM does not in this case release any more energy in the room to be heated. |
2020Article de journal ER5 Auteurs : Cherif, Yassine; Sassine, E; Lassue, Stéphane; Zalewski, Laurent Experimental and numerical natural convection in an asymmetrically heated double vertical facade Dans: International Journal of Thermal Sciences, vol. 152, 2020, (cited By 0). Liens @article{Cherif2020,
title = {Experimental and numerical natural convection in an asymmetrically heated double vertical facade},
author = {Yassine Cherif and E Sassine and Stéphane Lassue and Laurent Zalewski},
url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85079690524&doi=10.1016%2fj.ijthermalsci.2020.106288&partnerID=40&md5=116e0588d4c4a765029b026e0cf366c8},
doi = {10.1016/j.ijthermalsci.2020.106288},
year = {2020},
date = {2020-01-01},
journal = {International Journal of Thermal Sciences},
volume = {152},
note = {cited By 0},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2020Article de journal ER5 Auteurs : Beaupere, Noé; Soupremanien, Ulrich; Zalewski, Laurent Experimental measurements of the residual solidification duration of a supercooled sodium acetate trihydrate Dans: International Journal of Thermal Sciences, vol. 158, p. 106544, 2020, ISSN: 1290-0729, (ACL). Résumé | Liens @article{beaupere_experimental_2020,
title = {Experimental measurements of the residual solidification duration of a supercooled sodium acetate trihydrate},
author = {Noé Beaupere and Ulrich Soupremanien and Laurent Zalewski},
url = {http://www.sciencedirect.com/science/article/pii/S1290072920309972},
doi = {https://doi.org/10.1016/j.ijthermalsci.2020.106544},
issn = {1290-0729},
year = {2020},
date = {2020-01-01},
journal = {International Journal of Thermal Sciences},
volume = {158},
pages = {106544},
abstract = {Phase change materials, such as sodium acetate trihydrate, are efficient materials for Latent Heat Thermal Energy Storage (LHTES) according to their interesting thermal properties (high latent heat and specific heat). Their main drawback is a large degree of supercooling, up to 90 K for sodium acetate trihydrate, where the material may remain liquid below its melting point. However, heat could be released if the solidification could be triggered. For a better understanding of how heat is discharged after an initial cooling by external water flow and a solidification induction by seeding, the temperature was experimentally recorded to measure the residual solidification plateau duration. This experiment was repeated for different nucleation temperatures and fit well with the theoretical predictions. An increase of 90% in the solidification duration was observed when the supercooling degree dropped from 35 to 8 K. Thanks to an original experimental bench, this temperature record has been compared with a fully new method allowing the measurements of the material's opacification throughout the solidification process. Finally, two different opacification behaviors were observed for supercooling degrees below and above 20 K.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Phase change materials, such as sodium acetate trihydrate, are efficient materials for Latent Heat Thermal Energy Storage (LHTES) according to their interesting thermal properties (high latent heat and specific heat). Their main drawback is a large degree of supercooling, up to 90 K for sodium acetate trihydrate, where the material may remain liquid below its melting point. However, heat could be released if the solidification could be triggered. For a better understanding of how heat is discharged after an initial cooling by external water flow and a solidification induction by seeding, the temperature was experimentally recorded to measure the residual solidification plateau duration. This experiment was repeated for different nucleation temperatures and fit well with the theoretical predictions. An increase of 90% in the solidification duration was observed when the supercooling degree dropped from 35 to 8 K. Thanks to an original experimental bench, this temperature record has been compared with a fully new method allowing the measurements of the material's opacification throughout the solidification process. Finally, two different opacification behaviors were observed for supercooling degrees below and above 20 K. |
2020Article de journal ER5 Auteurs : Thonon, Maxime; Fraisse, Gilles; Zalewski, Laurent; Pailha, Mickael Towards a better analytical modelling of the thermodynamic behaviour of phase change materials Dans: Journal of Energy Storage, vol. 32, p. 101826, 2020, ISSN: 2352-152X, (ACL). Résumé | Liens @article{THONON2020101826,
title = {Towards a better analytical modelling of the thermodynamic behaviour of phase change materials},
author = {Maxime Thonon and Gilles Fraisse and Laurent Zalewski and Mickael Pailha},
url = {http://www.sciencedirect.com/science/article/pii/S2352152X20316637},
doi = {https://doi.org/10.1016/j.est.2020.101826},
issn = {2352-152X},
year = {2020},
date = {2020-01-01},
journal = {Journal of Energy Storage},
volume = {32},
pages = {101826},
abstract = {Modelling of latent heat thermal storage systems is mainly achieved with an analytical formulation describing the thermodynamic state of the phase change material (PCM). In literature, different models exist to describe the evolution of the liquid fraction, the effective heat capacity and the enthalpy as a function of temperature. The main issue is to correctly establish these behaviour laws and to identify the thermophysical properties of each PCM. Analytical models proposed in literature often have obvious limitations, such as the presence of discontinuities or the impossibility to represent asymmetric phase change dynamics. Such approaches a priori do not allow to model accurately the thermodynamic behaviour of the PCM. Given the limitations identified on existing models, a new analytical model is proposed in this paper. Moreover, it is not uncommon to observe the presence of two heat flux peaks during the phase change process of a PCM, as with the studied PCM (RT58). Therefore, we propose a method to model the two heat flux peaks, which are rarely considered in literature. PCM properties are determined thanks to a four-step identification process, using experimental data and the different analytical models studied. Based on the numerical modelling of the rectangular container used for the experiments, and on the identified thermodynamic properties of the enclosed PCM, a comparative study between the new analytical model and existing models is carried out. It appears that modelling only a single heat flux peak is not satisfactory for the studied PCM, and taking into account a second heat flux peak decreases the error on the exchanged energy by a factor of 2.5 to 6.5 depending on models. The new model leads to an accuracy gain of a factor of 1.5 to 3.3 compared with existing models. We do not recommend the model based on a linear evolution of the liquid fraction as the resulting error is between 1.6 and 3.3 times greater than for the other models. The study carried out is based on both melting and solidification processes, and concerns a PCM which does not undergo supercooling.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Modelling of latent heat thermal storage systems is mainly achieved with an analytical formulation describing the thermodynamic state of the phase change material (PCM). In literature, different models exist to describe the evolution of the liquid fraction, the effective heat capacity and the enthalpy as a function of temperature. The main issue is to correctly establish these behaviour laws and to identify the thermophysical properties of each PCM. Analytical models proposed in literature often have obvious limitations, such as the presence of discontinuities or the impossibility to represent asymmetric phase change dynamics. Such approaches a priori do not allow to model accurately the thermodynamic behaviour of the PCM. Given the limitations identified on existing models, a new analytical model is proposed in this paper. Moreover, it is not uncommon to observe the presence of two heat flux peaks during the phase change process of a PCM, as with the studied PCM (RT58). Therefore, we propose a method to model the two heat flux peaks, which are rarely considered in literature. PCM properties are determined thanks to a four-step identification process, using experimental data and the different analytical models studied. Based on the numerical modelling of the rectangular container used for the experiments, and on the identified thermodynamic properties of the enclosed PCM, a comparative study between the new analytical model and existing models is carried out. It appears that modelling only a single heat flux peak is not satisfactory for the studied PCM, and taking into account a second heat flux peak decreases the error on the exchanged energy by a factor of 2.5 to 6.5 depending on models. The new model leads to an accuracy gain of a factor of 1.5 to 3.3 compared with existing models. We do not recommend the model based on a linear evolution of the liquid fraction as the resulting error is between 1.6 and 3.3 times greater than for the other models. The study carried out is based on both melting and solidification processes, and concerns a PCM which does not undergo supercooling. |
2020Article de journal ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Impact of a Composite Trombe Wall Incorporating Phase Change Materials on the Thermal Behavior of an Individual House with Low Energy Consumption Dans: Energies, vol. 13, no. 18, 2020, ISSN: 1996-1073, (ACL). Résumé | Liens @article{en13184872,
title = {Impact of a Composite Trombe Wall Incorporating Phase Change Materials on the Thermal Behavior of an Individual House with Low Energy Consumption},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
url = {https://www.mdpi.com/1996-1073/13/18/4872},
doi = {10.3390/en13184872},
issn = {1996-1073},
year = {2020},
date = {2020-01-01},
journal = {Energies},
volume = {13},
number = {18},
abstract = {As the heating demands of buildings drop considerably, the use of solar walls makes increasing sense. One of the obstacles to the development of such walls is their need for on-site implementation by specialized companies. On the other hand, a storage wall is generally composed of heavy materials with high inertia, which prevents prefabrication of the solar component. To avoid this problem and allow for solar walls to be prefabricated in the factory, a novel approach to replacing this heavy wall with a lighter storage wall incorporating phase change materials (PCM) has been proposed. This paper aims to demonstrate the impact of PCM on the thermal energy performance once they have been integrated into the storage wall of the composite Trombe wall. Addressed herein will be the heat transfer exchange inside a house located in the northern part of France, where a composite Trombe wall has been fitted without PCM. Three configurations will be investigated—(1) the model house without the solar Trombe wall, defined as the reference configuration; (2) the model house integrating the concrete solar Trombe wall; and (3) the model house integrating the PCM solar Trombe wall. Two setpoint temperatures will be introduced—(a) a constant setpoint of 20 °C, and (b) a variable setpoint of 19 °C (14 h from 7:00 a.m. to 9:00 p.m.) and 16 °C (10 h from 9:00 p.m. to 7:00 a.m.). Furthermore, three different climate conditions will be adopted to run simulations—Paris-Orly, Lyon, and Nice. Dymola/Modelica, a dynamic thermal simulation tool, will be utilized to simulate the thermal performance of these defined configurations. The results obtained, regarding a solar Trombe wall installation that applies two distinct storage walls exposed to the weather of Paris, showed similar minimizations of the one-year energy heating demand inside the bedroom, equal to roughly 20% (i.e., 20.45% of concrete storage wall and 19.90% of PCM storage wall) compared to the reference configuration (i.e., the house with no solar Trombe wall). Based on the imposed setpoint temperature by means of night and day reductions, the resulting heating energy demand in the bedroom, through application of the two storage walls (concrete and PCM) and three different climatic regions could be minimized by 20.34% in Paris, 20.20% in Lyon, and 68.10% in Nice (for the concrete storage wall) vs. the reference configuration; and by 18.79% in Paris, 19.56% in Lyon, and 55.15% in Nice (for the PCM storage wall) vs. the reference configuration.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
As the heating demands of buildings drop considerably, the use of solar walls makes increasing sense. One of the obstacles to the development of such walls is their need for on-site implementation by specialized companies. On the other hand, a storage wall is generally composed of heavy materials with high inertia, which prevents prefabrication of the solar component. To avoid this problem and allow for solar walls to be prefabricated in the factory, a novel approach to replacing this heavy wall with a lighter storage wall incorporating phase change materials (PCM) has been proposed. This paper aims to demonstrate the impact of PCM on the thermal energy performance once they have been integrated into the storage wall of the composite Trombe wall. Addressed herein will be the heat transfer exchange inside a house located in the northern part of France, where a composite Trombe wall has been fitted without PCM. Three configurations will be investigated—(1) the model house without the solar Trombe wall, defined as the reference configuration; (2) the model house integrating the concrete solar Trombe wall; and (3) the model house integrating the PCM solar Trombe wall. Two setpoint temperatures will be introduced—(a) a constant setpoint of 20 °C, and (b) a variable setpoint of 19 °C (14 h from 7:00 a.m. to 9:00 p.m.) and 16 °C (10 h from 9:00 p.m. to 7:00 a.m.). Furthermore, three different climate conditions will be adopted to run simulations—Paris-Orly, Lyon, and Nice. Dymola/Modelica, a dynamic thermal simulation tool, will be utilized to simulate the thermal performance of these defined configurations. The results obtained, regarding a solar Trombe wall installation that applies two distinct storage walls exposed to the weather of Paris, showed similar minimizations of the one-year energy heating demand inside the bedroom, equal to roughly 20% (i.e., 20.45% of concrete storage wall and 19.90% of PCM storage wall) compared to the reference configuration (i.e., the house with no solar Trombe wall). Based on the imposed setpoint temperature by means of night and day reductions, the resulting heating energy demand in the bedroom, through application of the two storage walls (concrete and PCM) and three different climatic regions could be minimized by 20.34% in Paris, 20.20% in Lyon, and 68.10% in Nice (for the concrete storage wall) vs. the reference configuration; and by 18.79% in Paris, 19.56% in Lyon, and 55.15% in Nice (for the PCM storage wall) vs. the reference configuration. |
2020Article de journal ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Design Optimization of a Composite Solar Wall Integrating a PCM in a Individual House: Heating Demand and Thermal Comfort Considerations Dans: Energies, vol. 13, no. 21, 2020, ISSN: 1996-1073, (ACL). Résumé | Liens @article{en13215640,
title = {Design Optimization of a Composite Solar Wall Integrating a PCM in a Individual House: Heating Demand and Thermal Comfort Considerations},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
url = {https://www.mdpi.com/1996-1073/13/21/5640},
doi = {10.3390/en13215640},
issn = {1996-1073},
year = {2020},
date = {2020-01-01},
journal = {Energies},
volume = {13},
number = {21},
abstract = {Thermal energy storage (TES), which features an innovative technology, can enhance energy efficiency in the building sector and reduce CO2 emissions. Due to their high heat storage capacity, phase change materials (PCMs) have impressed many researchers. This paper investigates the energy performance of an individual house integrating a solar Trombe wall containing PCM with respect to heating demand and thermal comfort applications. The thermal energy performance of the design house was simulated using Dymola/Modelica, the thermal building simulation tool, whereby the optimization of objective functions as regards heating demand and thermal comfort was executed using GenOpt, the generic optimization software. Optimization of the solar Trombe wall focuses on the feasibility to find the optimal PCM parameters when running GenOpt, which consist of latent heat, melting temperature, PCM thickness and thermal conductivity, in order to minimize both the annual energy consumption for heating and the number of hours of thermal discomfort. The parametric study was first conducted for each PCM parameter so as to not only observe its effect on the identified energy performance, but also ensure the absence of errors in simulation runs before performing the optimization. The ‘Coordinate Search’ Generalized Pattern Search (GPS) algorithm was applied to minimize the objective function, whereas the ‘Weighted Sum Approach’ was used to solve the multi-objective function problem. Results showed that the higher the latent heat, the lower the heating demand and the greater the thermal comfort. The results of these parametric studies show that for the effect of the parameter on heating, demand is quite limited (1-2 kWh·m−2·year−1) whereas the effect on thermal comfort is more significant. The optimal PCM melting temperature is higher for warmer climates; it is also higher for the studied case applying the optimization method to minimize the objective function by assigning the number of hours of thermal discomfort (from 32.8 ∘C to 35.9 ∘C, depending on weather) than it is when applying the optimization method to reduce the objective function by assigning heating demand (from 31.5 ∘C to 32.9 ∘C, again depending on weather).},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Thermal energy storage (TES), which features an innovative technology, can enhance energy efficiency in the building sector and reduce CO2 emissions. Due to their high heat storage capacity, phase change materials (PCMs) have impressed many researchers. This paper investigates the energy performance of an individual house integrating a solar Trombe wall containing PCM with respect to heating demand and thermal comfort applications. The thermal energy performance of the design house was simulated using Dymola/Modelica, the thermal building simulation tool, whereby the optimization of objective functions as regards heating demand and thermal comfort was executed using GenOpt, the generic optimization software. Optimization of the solar Trombe wall focuses on the feasibility to find the optimal PCM parameters when running GenOpt, which consist of latent heat, melting temperature, PCM thickness and thermal conductivity, in order to minimize both the annual energy consumption for heating and the number of hours of thermal discomfort. The parametric study was first conducted for each PCM parameter so as to not only observe its effect on the identified energy performance, but also ensure the absence of errors in simulation runs before performing the optimization. The ‘Coordinate Search’ Generalized Pattern Search (GPS) algorithm was applied to minimize the objective function, whereas the ‘Weighted Sum Approach’ was used to solve the multi-objective function problem. Results showed that the higher the latent heat, the lower the heating demand and the greater the thermal comfort. The results of these parametric studies show that for the effect of the parameter on heating, demand is quite limited (1–2 kWh·m−2·year−1) whereas the effect on thermal comfort is more significant. The optimal PCM melting temperature is higher for warmer climates; it is also higher for the studied case applying the optimization method to minimize the objective function by assigning the number of hours of thermal discomfort (from 32.8 ∘C to 35.9 ∘C, depending on weather) than it is when applying the optimization method to reduce the objective function by assigning heating demand (from 31.5 ∘C to 32.9 ∘C, again depending on weather). |
2020Article de journal ER5 Auteurs : Rathgeber, Christoph; Hiebler, Stefan; Bayón, Rocío; Cabeza, Luisa F; Zsembinszki, Gabriel; Englmair, Gerald; Dannemand, Mark; Diarce, Gonzalo; Fellmann, Oliver; Ravotti, Rebecca; Groulx, Dominic; Kheirabadi, Ali C; Gschwander, Stefan; Höhlein, Stephan; König-Haagen, Andreas; Beaupere, Noé; Zalewski, Laurent Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions Dans: Applied Sciences, vol. 10, no. 22, 2020, ISSN: 2076-3417, (ACL). Résumé | Liens @article{app10227968,
title = {Experimental Devices to Investigate the Long-Term Stability of Phase Change Materials under Application Conditions},
author = {Christoph Rathgeber and Stefan Hiebler and Rocío Bayón and Luisa F Cabeza and Gabriel Zsembinszki and Gerald Englmair and Mark Dannemand and Gonzalo Diarce and Oliver Fellmann and Rebecca Ravotti and Dominic Groulx and Ali C Kheirabadi and Stefan Gschwander and Stephan Höhlein and Andreas König-Haagen and Noé Beaupere and Laurent Zalewski},
url = {https://www.mdpi.com/2076-3417/10/22/7968},
doi = {10.3390/app10227968},
issn = {2076-3417},
year = {2020},
date = {2020-01-01},
journal = {Applied Sciences},
volume = {10},
number = {22},
abstract = {An important prerequisite to select a reliable phase change material (PCM) for thermal energy storage applications is to test it under application conditions. In the case of solid-liquid PCM, a large amount of thermal energy can be stored and released in a small temperature range around the solid-liquid phase transition. Therefore, to test the long-term stability of solid-liquid PCM, they are subjected to melting and solidification processes taking into account the conditions of the intended application. In this work, 18 experimental devices to investigate the long-term stability of PCM are presented. The experiments can be divided into thermal cycling stability tests, tests on PCM with stable supercooling, and tests on the stability of phase change slurries (PCS). In addition to these experiments, appropriate methods to investigate a possible degradation of the PCM are introduced. Considering the diversity of the investigated devices and the wide range of experimental parameters, further work toward a standardization of PCM stability testing is recommended.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
An important prerequisite to select a reliable phase change material (PCM) for thermal energy storage applications is to test it under application conditions. In the case of solid–liquid PCM, a large amount of thermal energy can be stored and released in a small temperature range around the solid–liquid phase transition. Therefore, to test the long-term stability of solid–liquid PCM, they are subjected to melting and solidification processes taking into account the conditions of the intended application. In this work, 18 experimental devices to investigate the long-term stability of PCM are presented. The experiments can be divided into thermal cycling stability tests, tests on PCM with stable supercooling, and tests on the stability of phase change slurries (PCS). In addition to these experiments, appropriate methods to investigate a possible degradation of the PCM are introduced. Considering the diversity of the investigated devices and the wide range of experimental parameters, further work toward a standardization of PCM stability testing is recommended. |
2019Article de journal ER5 Auteurs : Zalewski, Laurent; Franquet, Erwin; Gibout, Stéphane; Tittelein, Pierre; Defer, Didier Efficient Characterization of Macroscopic Composite Cement Mortars with Various Contents of Phase Change Material Dans: Applied Sciences, vol. 9, no. 6, p. 1104, 2019. Résumé | Liens @article{zalewski_efficient_2019,
title = {Efficient Characterization of Macroscopic Composite Cement Mortars with Various Contents of Phase Change Material},
author = {Laurent Zalewski and Erwin Franquet and Stéphane Gibout and Pierre Tittelein and Didier Defer},
url = {https://www.mdpi.com/2076-3417/9/6/1104},
doi = {10.3390/app9061104},
year = {2019},
date = {2019-01-01},
urldate = {2019-03-19},
journal = {Applied Sciences},
volume = {9},
number = {6},
pages = {1104},
abstract = {The determination of both the thermal and thermodynamical properties of a composite material containing phase change material is done thanks to an inverse method, which combines experimental measurements and numerical computations. Given first an in-house experiment, which allows us to test samples at a macroscopic scale (i.e., close to the real conditions) and to set various types of thermal stresses, and secondly the simulation of the corresponding thermal behavior, relying on an accurate thermodynamical modeling and taking into account the real operating parameters (e.g., thermal contact resistances and non-symmetric heat fluxes on each side), it is possible to characterize the solid and liquid thermal conductivities and heat capacities, as well as the temperature range associated with a non-isothermal phase transition and the associated latent heat. The specificity of the present approach is to allow, in a single step, a characterization of all the involved thermo-physical parameters that are usually required in simulation tools (e.g., EnergyPlus…). Moreover, the hitherto studies dealing with repeatability and uncertainties of the enthalpy characterization are generally very scant and not encountered very often or only with qualitative assessments. This is a clear caveat, especially when considering any system design. Therefore, for the first time ever, the present paper pays a special attention to the repeatability of the identification method and studies the scedasticity of the results, that is to say the deviations of the determined enthalpy curves, not only from a qualitative point of view but also by proposing quantitative arguments. Finally, the results are very promising since the agreement between all trials is excellent, the maximum error for all parameters being lower than 4%. This is far below the current quality thresholds admitted when characterizing the enthalpy of a phase change material.},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
The determination of both the thermal and thermodynamical properties of a composite material containing phase change material is done thanks to an inverse method, which combines experimental measurements and numerical computations. Given first an in-house experiment, which allows us to test samples at a macroscopic scale (i.e., close to the real conditions) and to set various types of thermal stresses, and secondly the simulation of the corresponding thermal behavior, relying on an accurate thermodynamical modeling and taking into account the real operating parameters (e.g., thermal contact resistances and non-symmetric heat fluxes on each side), it is possible to characterize the solid and liquid thermal conductivities and heat capacities, as well as the temperature range associated with a non-isothermal phase transition and the associated latent heat. The specificity of the present approach is to allow, in a single step, a characterization of all the involved thermo-physical parameters that are usually required in simulation tools (e.g., EnergyPlus…). Moreover, the hitherto studies dealing with repeatability and uncertainties of the enthalpy characterization are generally very scant and not encountered very often or only with qualitative assessments. This is a clear caveat, especially when considering any system design. Therefore, for the first time ever, the present paper pays a special attention to the repeatability of the identification method and studies the scedasticity of the results, that is to say the deviations of the determined enthalpy curves, not only from a qualitative point of view but also by proposing quantitative arguments. Finally, the results are very promising since the agreement between all trials is excellent, the maximum error for all parameters being lower than 4%. This is far below the current quality thresholds admitted when characterizing the enthalpy of a phase change material. |
2019Article de journal ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent Experimental and numerical characterization of an impure phase change material using a thermal lattice Boltzmann method Dans: Applied Thermal Engineering, 2019, ISSN: 1359-4311. Résumé | Liens @article{yehya_experimental_2019,
title = {Experimental and numerical characterization of an impure phase change material using a thermal lattice Boltzmann method},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski},
url = {http://www.sciencedirect.com/science/article/pii/S1359431118357569},
doi = {10.1016/j.applthermaleng.2019.03.026},
issn = {1359-4311},
year = {2019},
date = {2019-01-01},
urldate = {2019-03-14},
journal = {Applied Thermal Engineering},
abstract = {Of the phase change materials (PCMs) that regulate ambient temperature while reducing energy consumption, Octadecane is a good candidate because of its transparency properties and its adequate melting temperature. This study aims to characterize, through an approach combining numerical simulation and experiment, the behavior and thermo-physical properties of n-Octadecane. The approach takes into consideration the natural convection and the use of PCM's experimentally-obtained enthalpy-temperature curve that includes the supercooling and soluble impurities effects. The model uses the thermal lattice Boltzmann method based both on a partial bounce-back and an enthalpy formulation while including the experimental relationships. The numerical and experimental results exhibit good agreement. The approach adopted allows to highlight the behavior of the PCM to better characterize its thermo-physical properties.},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Of the phase change materials (PCMs) that regulate ambient temperature while reducing energy consumption, Octadecane is a good candidate because of its transparency properties and its adequate melting temperature. This study aims to characterize, through an approach combining numerical simulation and experiment, the behavior and thermo-physical properties of n-Octadecane. The approach takes into consideration the natural convection and the use of PCM's experimentally-obtained enthalpy-temperature curve that includes the supercooling and soluble impurities effects. The model uses the thermal lattice Boltzmann method based both on a partial bounce-back and an enthalpy formulation while including the experimental relationships. The numerical and experimental results exhibit good agreement. The approach adopted allows to highlight the behavior of the PCM to better characterize its thermo-physical properties. |
2019Article de journal ER5 Auteurs : Cherif, Yassine; SASSINE, Emilio; Zalewski, Laurent; SOUIDI, Kaies; Lassue, Stephane Experimental analysis of natural convection and flow visualization in an asymmetrically heated open vertical channel Dans: Journal of Thermal Science and Engineering Applications, p. 1–34, 2019, ISSN: 1948-5085. Résumé | Liens @article{cherif_experimental_2019,
title = {Experimental analysis of natural convection and flow visualization in an asymmetrically heated open vertical channel},
author = {Yassine Cherif and Emilio SASSINE and Laurent Zalewski and Kaies SOUIDI and Stephane Lassue},
url = {http://dx.doi.org/10.1115/1.4043533},
doi = {10.1115/1.4043533},
issn = {1948-5085},
year = {2019},
date = {2019-01-01},
urldate = {2019-04-23},
journal = {Journal of Thermal Science and Engineering Applications},
pages = {1--34},
abstract = {An experimental device was designed to perform the thermal and dynamic study of natural convection airflow in an open vertical channel. The two side walls of the vertical channel are made of Plexiglas allowing the visualization of the flow via the PIV method. For the two other vertical walls, one is heated at a constant temperature, and the other is insulated with a 9 cm thick polystyrene insulation. The dynamic characterization of convection is carried out by non-intrusive measurements (Particle Image Velocimetry (PIV)) and thermal phenomena are analyzed using non-intrusive heat flux instrumentation (Simultaneous temperature and velocity measurements have been carried out across the channel at different elevations). Moreover, this study deals with the influence of the Rayleigh number on the measured vertical velocity profiles as well as the thermal flux densities recorded along the heated wall. To do this, different values of the modified Rayleigh numbers were considered in the interval with the channel aspect ratio respectively of A= 5; and A = 12.5. The numbers of Nusselt obtained have been compared successfully with those of the literature. The effects of Rayleigh number and aspect ratio, on the velocity profiles, the convective and radiation heat transfer are examined in detail.},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
An experimental device was designed to perform the thermal and dynamic study of natural convection airflow in an open vertical channel. The two side walls of the vertical channel are made of Plexiglas allowing the visualization of the flow via the PIV method. For the two other vertical walls, one is heated at a constant temperature, and the other is insulated with a 9 cm thick polystyrene insulation. The dynamic characterization of convection is carried out by non-intrusive measurements (Particle Image Velocimetry (PIV)) and thermal phenomena are analyzed using non-intrusive heat flux instrumentation (Simultaneous temperature and velocity measurements have been carried out across the channel at different elevations). Moreover, this study deals with the influence of the Rayleigh number on the measured vertical velocity profiles as well as the thermal flux densities recorded along the heated wall. To do this, different values of the modified Rayleigh numbers were considered in the interval with the channel aspect ratio respectively of A= 5; and A = 12.5. The numbers of Nusselt obtained have been compared successfully with those of the literature. The effects of Rayleigh number and aspect ratio, on the velocity profiles, the convective and radiation heat transfer are examined in detail. |
2018Proceedings Article ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Étude expérimentale et numérique d'un mur solaire composite intégrant une paroi stockeuse en mortier ciment et MCP micro-encapsulé Dans: actes du Congrès Français de Thermique 2018, Pau, 2018, (ACTN). Résumé @inproceedings{leang_etude_2018,
title = {Étude expérimentale et numérique d'un mur solaire composite intégrant une paroi stockeuse en mortier ciment et MCP micro-encapsulé},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
year = {2018},
date = {2018-01-01},
booktitle = {actes du Congrès Français de Thermique 2018},
address = {Pau},
abstract = {Cet article présente l'étude d'un mur solaire de type Trombe composite intégrant une paroi stockeuse constituée d'un mortier ciment contenant un matériau à changement de phase micro-encapsulé. Un modèle numérique de ce mur solaire a été développé en utilisant le logiciel Dymola/Modelica. Les résultats issus de simulations sont comparés à des mesures expérimentales réalisées sur une maquette à échelle réduite en vue d'une validation du modèle. Les résultats numériques et mesurées obtenus montrent une bonne similitude pour les grandeurs caractéristiques du composant solaire essentiels à l'évaluation de ses performances énergétiques},
note = {ACTN},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Cet article présente l'étude d'un mur solaire de type Trombe composite intégrant une paroi stockeuse constituée d'un mortier ciment contenant un matériau à changement de phase micro-encapsulé. Un modèle numérique de ce mur solaire a été développé en utilisant le logiciel Dymola/Modelica. Les résultats issus de simulations sont comparés à des mesures expérimentales réalisées sur une maquette à échelle réduite en vue d'une validation du modèle. Les résultats numériques et mesurées obtenus montrent une bonne similitude pour les grandeurs caractéristiques du composant solaire essentiels à l'évaluation de ses performances énergétiques |
2018Proceedings Article ER5 Auteurs : Asfour, Sarah; Tittelein, Pierre; Zalewski, Laurent Dynamic study efficiency of the use of phase change materials integrated on the ceiling of a community hall Dans: 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018), Orford, Quebec, Canada, 2018, (ACTI). Résumé @inproceedings{asfour_dynamic_2018,
title = {Dynamic study efficiency of the use of phase change materials integrated on the ceiling of a community hall},
author = {Sarah Asfour and Pierre Tittelein and Laurent Zalewski},
year = {2018},
date = {2018-05-01},
booktitle = {12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)},
address = {Orford, Quebec, Canada},
abstract = {In this article, we study the influence of the insertion of a phase change materials (PCMs) in the ceiling of a community hall on its comfort during the summer period. This study was realized using a dynamic thermal simulation of the building using a modelica library (BuildSysPro). Initially, we have defined materials used for the building including the characteristics of the phase change material used (thermal conductivity, melting temperature, specific heat capacity, latent heat and density). We have tested two configurations: insertion of a layer of PCM mortar and incorporation of PCM in rock wool ceiling tiles. We study the influence of the over-ventilation during night on these two cases. By comparing the simulation results during summer, we have noticed that the over-ventilation during night has a significant influence in reducing the inner temperature of the building. The insertion of PCM in a layer of ceiling tiles didn’t have a significant efficiency contrary to the insertion of a layer of PCM mortar. Secondly, we have optimized the PCM characteristics in order to achieve more comfort during summer.},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
In this article, we study the influence of the insertion of a phase change materials (PCMs) in the ceiling of a community hall on its comfort during the summer period. This study was realized using a dynamic thermal simulation of the building using a modelica library (BuildSysPro). Initially, we have defined materials used for the building including the characteristics of the phase change material used (thermal conductivity, melting temperature, specific heat capacity, latent heat and density). We have tested two configurations: insertion of a layer of PCM mortar and incorporation of PCM in rock wool ceiling tiles. We study the influence of the over-ventilation during night on these two cases. By comparing the simulation results during summer, we have noticed that the over-ventilation during night has a significant influence in reducing the inner temperature of the building. The insertion of PCM in a layer of ceiling tiles didn’t have a significant efficiency contrary to the insertion of a layer of PCM mortar. Secondly, we have optimized the PCM characteristics in order to achieve more comfort during summer. |
2018Proceedings Article ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Impact de l’utilisation d’un mur solaire composite intégrant des matériaux à changement de phase sur le comportement thermique d’une maison individuelle Dans: Journée nationale sur l'énergie solaire, Villeurbanne, Rhône, France, 2018, (COM). Résumé @inproceedings{leang_impact_2018,
title = {Impact de l’utilisation d’un mur solaire composite intégrant des matériaux à changement de phase sur le comportement thermique d’une maison individuelle},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
year = {2018},
date = {2018-06-01},
booktitle = {Journée nationale sur l'énergie solaire},
address = {Villeurbanne, Rhône, France},
abstract = {Avec la forte réduction des besoins de chauffage des bâtiments, l’utilisation de murs solaires prend tout son sens. L’un des freins à leur développement réside dans le fait qu’ils doivent être réalisés sur chantier par des entreprises spécialisées à cause du mur stockeur qui est en maçonnerie. Pour éviter ce problème et permettre de construire des murs solaires préfabriqués en usine, on peut imaginer de remplacer le mur en maçonnerie par un mur plus léger intégrant des matériaux à changement de phase (MCP).
On cherchera dans cette étude à montrer l’impact de l’utilisation d’un mur solaire intégrant des MCP sur le comportement thermique d’une maison individuelle et la réduction des consommations énergétiques. Le matériau utilisé pour le mur dans une première approche est un mortier intégrant des microbilles commerciales de MCP. On cherchera ensuite à optimiser les caractéristiques de ce MCP pour réduire au maximum les besoins de chauffage du logement.},
note = {COM},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Avec la forte réduction des besoins de chauffage des bâtiments, l’utilisation de murs solaires prend tout son sens. L’un des freins à leur développement réside dans le fait qu’ils doivent être réalisés sur chantier par des entreprises spécialisées à cause du mur stockeur qui est en maçonnerie. Pour éviter ce problème et permettre de construire des murs solaires préfabriqués en usine, on peut imaginer de remplacer le mur en maçonnerie par un mur plus léger intégrant des matériaux à changement de phase (MCP).
On cherchera dans cette étude à montrer l’impact de l’utilisation d’un mur solaire intégrant des MCP sur le comportement thermique d’une maison individuelle et la réduction des consommations énergétiques. Le matériau utilisé pour le mur dans une première approche est un mortier intégrant des microbilles commerciales de MCP. On cherchera ensuite à optimiser les caractéristiques de ce MCP pour réduire au maximum les besoins de chauffage du logement. |
2018Article de journal ER5 Auteurs : Beaupere, Noé; Soupremanien, U; Zalewski, Laurent Nucleation triggering methods in supercooled phase change materials (PCM), a review Dans: Thermochimica Acta, 2018, ISSN: 0040-6031, (ACL). Résumé | Liens @article{beaupere_nucleation_2018,
title = {Nucleation triggering methods in supercooled phase change materials (PCM), a review},
author = {Noé Beaupere and U Soupremanien and Laurent Zalewski},
url = {http://www.sciencedirect.com/science/article/pii/S0040603118304544},
doi = {10.1016/j.tca.2018.10.009},
issn = {0040-6031},
year = {2018},
date = {2018-01-01},
urldate = {2018-10-15},
journal = {Thermochimica Acta},
abstract = {Supercooling is an undesired property of phase change materials due to the poorly predictable occurrence of crystallization during cooling. For such situations, the stored latent heat cannot be recovered which can be an issue for temperature-controlled applications. This review illustrates the techniques used for triggering crystallization in phase change materials having a supercooling property. The development of triggering devices should constitute a breakthrough for heat on demand applications, as heat can be released even when the temperature drops far below the liquidus temperature. Several techniques appear to be promising for nucleation triggering. They have been classified into two categories: passive (reduction of supercooling) or active (triggering of crystallization on demand) devices. They were accurately investigated for water freezing for: meteorological comprehension, food preservation or the pharmaceutical industry. In this paper, several nucleating agents (passive) have been explored, and most of them, added by 1 wt%, can decrease the supercooling degree by more than 90%. In addition, the heat would be immediately released on demand from a supercooled material by the use of seeding or electrofreezing (active methods). Solidification can also be externally triggered by the application of high pressure or ultrasonic waves (active). In addition to the analysis of the efficiency of the different techniques in terms of supercooling reduction, this review also discusses the solidification process at a microscopic scale.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Supercooling is an undesired property of phase change materials due to the poorly predictable occurrence of crystallization during cooling. For such situations, the stored latent heat cannot be recovered which can be an issue for temperature-controlled applications. This review illustrates the techniques used for triggering crystallization in phase change materials having a supercooling property. The development of triggering devices should constitute a breakthrough for heat on demand applications, as heat can be released even when the temperature drops far below the liquidus temperature. Several techniques appear to be promising for nucleation triggering. They have been classified into two categories: passive (reduction of supercooling) or active (triggering of crystallization on demand) devices. They were accurately investigated for water freezing for: meteorological comprehension, food preservation or the pharmaceutical industry. In this paper, several nucleating agents (passive) have been explored, and most of them, added by 1 wt%, can decrease the supercooling degree by more than 90%. In addition, the heat would be immediately released on demand from a supercooled material by the use of seeding or electrofreezing (active methods). Solidification can also be externally triggered by the application of high pressure or ultrasonic waves (active). In addition to the analysis of the efficiency of the different techniques in terms of supercooling reduction, this review also discusses the solidification process at a microscopic scale. |
2018Proceedings Article ER5 Auteurs : Beaupere, Noé; Soupremanien, Ulrich; ZALEWSKI, Laurent Solidification monitoring of supercooled phase change materials Dans: 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018), Orford (Québec), Canada, 2018. Résumé | Liens @inproceedings{beaupere_solidification_2018,
title = {Solidification monitoring of supercooled phase change materials},
author = {Noé Beaupere and Ulrich Soupremanien and Laurent ZALEWSKI},
doi = {10.18462/iir.pcm.2018.0022},
year = {2018},
date = {2018-01-01},
booktitle = {12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM 2018)},
volume = {PAPER ID: 0022},
address = {Orford (Québec), Canada},
abstract = {Salt hydrates are often used as heat storage materials according to their interesting thermal properties (high latent and specific heat). Their main drawback is their large supercooling, where the material may remain liquid below its melting point. However, this property should be turned into a benefit if a reliable way of triggering crystallization is developed, as heat could be released on demand. Sodium Acetate Trihydrate (SAT, CH3COONa.3H2O), which can exhibit 90K of supercooling, was used for this study. For a better understanding of how heat is released after crystallization triggering, caused by seeding, a fully new method was developed to measure the samples’ opacification, using a HeNe laser (633 nm) coupled with a photodetector, measuring the solid fraction thanks to the difference between liquid and solid specular transmittance. This technique was compared with temperature measurement and image processing, showing consistency between the different methods.},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Salt hydrates are often used as heat storage materials according to their interesting thermal properties (high latent and specific heat). Their main drawback is their large supercooling, where the material may remain liquid below its melting point. However, this property should be turned into a benefit if a reliable way of triggering crystallization is developed, as heat could be released on demand. Sodium Acetate Trihydrate (SAT, CH3COONa.3H2O), which can exhibit 90K of supercooling, was used for this study. For a better understanding of how heat is released after crystallization triggering, caused by seeding, a fully new method was developed to measure the samples’ opacification, using a HeNe laser (633 nm) coupled with a photodetector, measuring the solid fraction thanks to the difference between liquid and solid specular transmittance. This technique was compared with temperature measurement and image processing, showing consistency between the different methods. |
2017Proceedings Article ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Performance énergétique de parois solaires et stockage de l'énergie par chaleur latente Dans: Actes du CIFQ 2017, Saint Lô, 2017, (ACTI). Résumé @inproceedings{leang_performance_2017,
title = {Performance énergétique de parois solaires et stockage de l'énergie par chaleur latente},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
year = {2017},
date = {2017-01-01},
booktitle = {Actes du CIFQ 2017},
address = {Saint Lô},
abstract = {Cet article présente tout d’abord la comparaison entre les résultats de simulations numériques issues d’un modèle de mur Trombe composite intégrant une paroi stockeuse en béton et les résultats de mesures. Y sont confrontées les valeurs de flux de chaleur, de température de surface extérieure et intérieure de paroi, et les températures liées à la lame d’air ventilée. Ensuite, en utilisant pour base le modèle présenté en première partie, les performances d’un mur Trombe composite avec une paroi stockeuse en béton classique sont comparées à celles d’un mur intégrant un matériau à changement de phase (MCP), en utilisant le logiciel Dymola/Modelica. Les différences entre l’énergie stockée par le béton par chaleur sensible et celle du MCP par chaleur latente durant le changement d’état (solide-liquide, liquide-solide), les transferts thermiques par conduction, convection et rayonnement sont étudiés dans cet article.},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Cet article présente tout d’abord la comparaison entre les résultats de simulations numériques issues d’un modèle de mur Trombe composite intégrant une paroi stockeuse en béton et les résultats de mesures. Y sont confrontées les valeurs de flux de chaleur, de température de surface extérieure et intérieure de paroi, et les températures liées à la lame d’air ventilée. Ensuite, en utilisant pour base le modèle présenté en première partie, les performances d’un mur Trombe composite avec une paroi stockeuse en béton classique sont comparées à celles d’un mur intégrant un matériau à changement de phase (MCP), en utilisant le logiciel Dymola/Modelica. Les différences entre l’énergie stockée par le béton par chaleur sensible et celle du MCP par chaleur latente durant le changement d’état (solide-liquide, liquide-solide), les transferts thermiques par conduction, convection et rayonnement sont étudiés dans cet article. |
2017Article de journal ER5 Auteurs : Leang, Enghok; Tittelein, Pierre; Zalewski, Laurent; Lassue, Stéphane Numerical study of a composite Trombe solar wall integrating microencapsulated PCM Dans: Energy Procedia, vol. 122, no. Supplement C, p. 1009–1014, 2017, ISSN: 1876-6102. Résumé | Liens @article{leang_numerical_2017,
title = {Numerical study of a composite Trombe solar wall integrating microencapsulated PCM},
author = {Enghok Leang and Pierre Tittelein and Laurent Zalewski and Stéphane Lassue},
url = {http://www.sciencedirect.com/science/article/pii/S1876610217334276},
doi = {10.1016/j.egypro.2017.07.467},
issn = {1876-6102},
year = {2017},
date = {2017-01-01},
urldate = {2017-11-13},
journal = {Energy Procedia},
volume = {122},
number = {Supplement C},
pages = {1009--1014},
series = {CISBAT 2017 International ConferenceFuture Buildings & Districts – Energy Efficiency from Nano to Urban Scale},
abstract = {First, this article introduces a comparison between experimental results and the results issued from a numerical model of a composite Trombe solar wall incorporating a concrete storage wall with the help of the Dymola/Modelica software. The validation of the model is realized from the comparison between simulated and measured heat flux, external and internal surface temperatures and fluid temperatures in a ventilated air layer. Then, the numerical model is used to simulate a composite solar wall where the concrete storage wall is replaced by a mortar mixed with microencapsulated phase change material (PCM). This allows to study and compare the thermal behavior and the energy performances of the two composite solar walls.},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
First, this article introduces a comparison between experimental results and the results issued from a numerical model of a composite Trombe solar wall incorporating a concrete storage wall with the help of the Dymola/Modelica software. The validation of the model is realized from the comparison between simulated and measured heat flux, external and internal surface temperatures and fluid temperatures in a ventilated air layer. Then, the numerical model is used to simulate a composite solar wall where the concrete storage wall is replaced by a mortar mixed with microencapsulated phase change material (PCM). This allows to study and compare the thermal behavior and the energy performances of the two composite solar walls. |
2017Article de journal ER5 Auteurs : Stutz, Benoît; Pierres, Nolwenn Le; Kuznik, Frédéric; Johannes, Kevyn; Barrio, Elena Palomo Del; Bédécarrats, Jean-Pierre; Gibout, Stéphane; Marty, Philippe; Zalewski, Laurent; Soto, Jerome; Mazet, Nathalie; Olives, Régis; Bezian, Jean-Jacques; Minh, Doan Pham Storage of thermal solar energy Dans: Comptes Rendus Physique, vol. 18, no. 7–8, p. 401–414, 2017, ISSN: 1631-0705. Résumé | Liens @article{stutz_storage_2017,
title = {Storage of thermal solar energy},
author = {Benoît Stutz and Nolwenn Le Pierres and Frédéric Kuznik and Kevyn Johannes and Elena Palomo Del Barrio and Jean-Pierre Bédécarrats and Stéphane Gibout and Philippe Marty and Laurent Zalewski and Jerome Soto and Nathalie Mazet and Régis Olives and Jean-Jacques Bezian and Doan Pham Minh},
url = {https://www.sciencedirect.com/science/article/pii/S1631070517300646},
doi = {10.1016/j.crhy.2017.09.008},
issn = {1631-0705},
year = {2017},
date = {2017-09-01},
urldate = {2017-12-01},
journal = {Comptes Rendus Physique},
volume = {18},
number = {7–8},
pages = {401--414},
series = {Demain l’énergie},
abstract = {Solar thermal energy storage is used in many applications, from building to concentrating solar power plants and industry. The temperature levels encountered range from ambient temperature to more than 1000 °C, and operating times range from a few hours to several months. This paper reviews different types of solar thermal energy storage (sensible heat, latent heat, and thermochemical storage) for low- (40–120 °C) and medium-to-high-temperature (120–1000 °C) applications.},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Solar thermal energy storage is used in many applications, from building to concentrating solar power plants and industry. The temperature levels encountered range from ambient temperature to more than 1000 °C, and operating times range from a few hours to several months. This paper reviews different types of solar thermal energy storage (sensible heat, latent heat, and thermochemical storage) for low- (40–120 °C) and medium-to-high-temperature (120–1000 °C) applications. |
2016Article de journal ER5 Auteurs : Molcrette, Vincent F A; Autier, Vincent R B; Zalewski, Laurent; Lassue, Stéphane Numerical Method Approach to Calculate Earth-Energy of Earth-Pipe-Air Heat-Exchanger for Winter Heating Dans: Applied Mechanics and Materials, vol. 831, p. 278–285, 2016, ISSN: 1662-7482, (ACL). Liens @article{molc2016a,
title = {Numerical Method Approach to Calculate Earth-Energy of Earth-Pipe-Air Heat-Exchanger for Winter Heating},
author = {Vincent F A Molcrette and Vincent R B Autier and Laurent Zalewski and Stéphane Lassue},
url = {http://www.scientific.net/AMM.831.278},
doi = {10.4028/www.scientific.net/AMM.831.278},
issn = {1662-7482},
year = {2016},
date = {2016-01-01},
urldate = {2016-04-26},
journal = {Applied Mechanics and Materials},
volume = {831},
pages = {278--285},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2016Article de journal ER5 Auteurs : Favier, Patrick; Zalewski, Laurent; Lassue, Stéphane; Anwar, Sohail Designing an Automatic Control System for the Improved Functioning of a Solar Wall with Phase Change Material (PCM) Dans: Open Journal of Energy Efficiency, vol. 05, no. 01, p. 19–29, 2016, ISSN: 2169-2637, 2169-2645, (ACLO). Liens @article{favi2016a,
title = {Designing an Automatic Control System for the Improved Functioning of a Solar Wall with Phase Change Material (PCM)},
author = {Patrick Favier and Laurent Zalewski and Stéphane Lassue and Sohail Anwar},
url = {http://www.scirp.org/journal/PaperDownload.aspx?DOI=10.4236/ojee.2016.51003},
doi = {10.4236/ojee.2016.51003},
issn = {2169-2637, 2169-2645},
year = {2016},
date = {2016-01-01},
urldate = {2016-04-26},
journal = {Open Journal of Energy Efficiency},
volume = {05},
number = {01},
pages = {19--29},
note = {ACLO},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2016Article de journal ER5 Auteurs : Ristić, Alenka; Furbo, Simon; Moser, Christoph; Schranzhofer, Hermann; Lazaro, Ana; Delgado, Monica; Peñalosa, Conchita; Zalewski, Laurent; Diarce, Gonzalo; Alkan, Cemil; Gunasekara, Saman N; Haussmann, Thomas; Gschwander, Stefan; Rathgeber, Christoph; Schmit, Henri; Barreneche, Camila; Cabeza, Luiza; Ferrer, Gerard; Konuklu, Yeliz; Paksoy, Halime; Rammelberg, Holger; Munz, Gunther; Herzog, Thomas; Jänchen, Jochen; del Barrio, Elena Palomo IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials Dans: Energy Procedia, vol. 91, p. 207–217, 2016, ISSN: 1876-6102, (ACL). Résumé | Liens @article{ristic_iea_2016,
title = {IEA SHC Task 42 / ECES Annex 29 WG A1: Engineering and Processing of PCMs, TCMs and Sorption Materials},
author = {Alenka Ristić and Simon Furbo and Christoph Moser and Hermann Schranzhofer and Ana Lazaro and Monica Delgado and Conchita Peñalosa and Laurent Zalewski and Gonzalo Diarce and Cemil Alkan and Saman N Gunasekara and Thomas Haussmann and Stefan Gschwander and Christoph Rathgeber and Henri Schmit and Camila Barreneche and Luiza Cabeza and Gerard Ferrer and Yeliz Konuklu and Halime Paksoy and Holger Rammelberg and Gunther Munz and Thomas Herzog and Jochen Jänchen and Elena Palomo del Barrio},
url = {http://www.sciencedirect.com/science/article/pii/S1876610216303034},
doi = {10.1016/j.egypro.2016.06.205},
issn = {1876-6102},
year = {2016},
date = {2016-01-01},
urldate = {2017-03-03},
journal = {Energy Procedia},
volume = {91},
pages = {207--217},
series = {Proceedings of the 4th International Conference on Solar Heating and Cooling for Buildings and Industry (SHC 2015)},
abstract = {An overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 “Engineering and processing of TES materials” of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled “Compact Thermal Energy Storage” is presented.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
An overview on the recent results on the engineering and characterization of sorption materials, PCMs and TCMs investigated in the working group WG A1 “Engineering and processing of TES materials” of IEA SHC Task 42 / ECES Annex 29 (Task 4229) entitled “Compact Thermal Energy Storage” is presented. |
2016Article de journal ER5 Auteurs : Kuznik, F; Johannes, K; Franquet, E; Zalewski, Laurent; Gibout, S; Tittelein, Pierre; Dumas, J -P; David, D; Bédécarrats, J -P; Lassue, Stéphane Impact of the enthalpy function on the simulation of a building with phase change material wall Dans: Energy and Buildings, vol. 126, p. 220–229, 2016, ISSN: 0378-7788, (ACL). Résumé | Liens @article{kuznik_impact_2016,
title = {Impact of the enthalpy function on the simulation of a building with phase change material wall},
author = {F Kuznik and K Johannes and E Franquet and Laurent Zalewski and S Gibout and Pierre Tittelein and J -P Dumas and D David and J -P Bédécarrats and Stéphane Lassue},
url = {http://www.sciencedirect.com/science/article/pii/S0378778816304157},
doi = {10.1016/j.enbuild.2016.05.046},
issn = {0378-7788},
year = {2016},
date = {2016-01-01},
urldate = {2016-05-27},
journal = {Energy and Buildings},
volume = {126},
pages = {220--229},
abstract = {Recent studies concerning phase change material (PCM) characterization show that important errors occur if differential scanning calorimetry (DSC) experiments are misinterpreted. Therefore, it is important to know the influence of such misinterpretation on system modeling. The present work deals with phase change materials integrated in building structure to reduce overheating. The objective is to evaluate the discrepancies consequences (temperatures, heat fluxes), due to the use of the misinterpreted DSC experiments at different heating rates to determine the enthalpy, in comparison with those determined with the actual value of the enthalpy of the PCM determined by a proven inverse method. A numerical model of a single-family house with a phase change material mortar is developed to evaluate the thermal comfort in the building. The results show that for free-running temperature, none of the enthalpy curve deduced directly from DSC can predict correctly the thermal behavior of the house and the thermal comfort. Moreover, the more the DSC heating rate and the more the discrepancy with the results from the reference inverse method.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
Recent studies concerning phase change material (PCM) characterization show that important errors occur if differential scanning calorimetry (DSC) experiments are misinterpreted. Therefore, it is important to know the influence of such misinterpretation on system modeling. The present work deals with phase change materials integrated in building structure to reduce overheating. The objective is to evaluate the discrepancies consequences (temperatures, heat fluxes), due to the use of the misinterpreted DSC experiments at different heating rates to determine the enthalpy, in comparison with those determined with the actual value of the enthalpy of the PCM determined by a proven inverse method. A numerical model of a single-family house with a phase change material mortar is developed to evaluate the thermal comfort in the building. The results show that for free-running temperature, none of the enthalpy curve deduced directly from DSC can predict correctly the thermal behavior of the house and the thermal comfort. Moreover, the more the DSC heating rate and the more the discrepancy with the results from the reference inverse method. |
2016Proceedings Article ER5 Auteurs : Tittelein, Pierre; Leang, Enghok; Zalewski, Laurent; Lassue, Stéphane Comparaison des bibliothèques libres de Modelica pour la simulation thermique dynamique du bâtiment. Dans: actes de la conférence IBPSA France 2016, Marne la Valée, 2016, (ACTN). Résumé @inproceedings{tittelein_comparaison_2016,
title = {Comparaison des bibliothèques libres de Modelica pour la simulation thermique dynamique du bâtiment.},
author = {Pierre Tittelein and Enghok Leang and Laurent Zalewski and Stéphane Lassue},
year = {2016},
date = {2016-01-01},
booktitle = {actes de la conférence IBPSA France 2016},
address = {Marne la Valée},
abstract = {Le langage Modelica est de plus en plus utilisé dans toutes les branches de l'ingénierie pour la modélisation à l'échelle système. Il s'agit d'un langage orienté objet basé sur les équations et donc fait pour les physiciens au sens large). Dans le domaine du bâtiment, il commence également à se développer et plusieurs bibliothèques de modèles sont maintenant disponibles gratuitement.
L'objectif de cet article est d'aider les personnes qui souhaitent réaliser des modèles de systèmes ou de composants de bâtiments dans le langage Modelica et qui ne savent pas dans quelle bibliothèque l'intégrer. Pour cela, l'idée est de comparer les bibliothèques libres de Modelica pouvant servir à la simulation thermique dynamique des bâtiments. La comparaison ne porte pas sur les performances des modèles mais plutôt sur leurs fonctionnalités et les grands choix de développement réalisés. Nous utilisons l'exemple de l'intégration d'un modèle de fenêtre pariétodynamique pour étayer nos propos.},
note = {ACTN},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Le langage Modelica est de plus en plus utilisé dans toutes les branches de l'ingénierie pour la modélisation à l'échelle système. Il s'agit d'un langage orienté objet basé sur les équations et donc fait pour les physiciens au sens large). Dans le domaine du bâtiment, il commence également à se développer et plusieurs bibliothèques de modèles sont maintenant disponibles gratuitement.
L'objectif de cet article est d'aider les personnes qui souhaitent réaliser des modèles de systèmes ou de composants de bâtiments dans le langage Modelica et qui ne savent pas dans quelle bibliothèque l'intégrer. Pour cela, l'idée est de comparer les bibliothèques libres de Modelica pouvant servir à la simulation thermique dynamique des bâtiments. La comparaison ne porte pas sur les performances des modèles mais plutôt sur leurs fonctionnalités et les grands choix de développement réalisés. Nous utilisons l'exemple de l'intégration d'un modèle de fenêtre pariétodynamique pour étayer nos propos. |
2016Proceedings Article ER5 Auteurs : Zalewski, Laurent; Tittelein, Pierre; Defer, Didier; Lassue, Stéphane Characterization of phase change material with fluxmetric experimental device Dans: Oral presentation, Krakow, Poland, 2016, (COM). @inproceedings{zalewski_characterization_2016,
title = {Characterization of phase change material with fluxmetric experimental device},
author = {Laurent Zalewski and Pierre Tittelein and Didier Defer and Stéphane Lassue},
year = {2016},
date = {2016-06-01},
booktitle = {Oral presentation},
address = {Krakow, Poland},
note = {COM},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
|
2015Conférence ER5 Auteurs : Bédécarrats, Jean-Pierre; David, Damien; Defer, Didier; Dumas, Jean-Pierre; Franquet, Erwin; Gibout, Stéphane; Haillot, Didier; Johannes, Kévyn; Joulin, Annabelle; Kuznik, Frédéric; Lassue, Stéphane; Maréchal, William; Naji, Hassane; Tittelein, Pierre; Zalewski, Laurent Caractérisation des matériaux à changement de phase pour la simulation thermique des bâtiments actes du Congrès Français de Thermique 2015, La Rochelle, 2015, (ACTN). @conference{bede2015a,
title = {Caractérisation des matériaux à changement de phase pour la simulation thermique des bâtiments},
author = {Jean-Pierre Bédécarrats and Damien David and Didier Defer and Jean-Pierre Dumas and Erwin Franquet and Stéphane Gibout and Didier Haillot and Kévyn Johannes and Annabelle Joulin and Frédéric Kuznik and Stéphane Lassue and William Maréchal and Hassane Naji and Pierre Tittelein and Laurent Zalewski},
year = {2015},
date = {2015-05-01},
booktitle = {actes du Congrès Français de Thermique 2015},
address = {La Rochelle},
note = {ACTN},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
|
2015Conférence ER5 Auteurs : Bédécarrats, Jean-Pierre; David, Damien; Defer, Didier; Dumas, Jean-Pierre; Franquet, Erwin; Gibout, Stéphane; Haillot, Didier; Johannes, Kevyn; Joulin, Annabelle; Kuznik, Frédéric; Lassue, Stéphane; Maréchal, William; Naji, Hassane; Tittelein, Pierre; Zalewski, Laurent Phase change materials characterisation and applications to the thermal simulation of buildings Proceedings of ECOS 2015, Pau, 2015, (ACTI). Résumé @conference{bede2015b,
title = {Phase change materials characterisation and applications to the thermal simulation of buildings},
author = {Jean-Pierre Bédécarrats and Damien David and Didier Defer and Jean-Pierre Dumas and Erwin Franquet and Stéphane Gibout and Didier Haillot and Kevyn Johannes and Annabelle Joulin and Frédéric Kuznik and Stéphane Lassue and William Maréchal and Hassane Naji and Pierre Tittelein and Laurent Zalewski},
year = {2015},
date = {2015-07-01},
booktitle = {Proceedings of ECOS 2015},
address = {Pau},
abstract = {We aim here at presenting the main results of the Stock-E MICMCP ANR
project whose principal goal is the correct thermophysical characterisation
of phase change materials in order to have reliable inputs when considering
numerical simulations of thermal behaviour of buildings. Firstly,
we will present the method developed to determine the function governing
the enthalpy with respect to the temperature of the material. It
is based on the use of experimental measurements together with an
inversion method: by comparing the heat flow with a simulated one,
obtained by assuming an a priori formulation of the enthalpy (which
set some basic thermodynamical constraints), we may calculate the
numerical values of the associated parameters. Secondly, we will
show that this method can be extended to macroscopic and heterogeneous
materials, which are more representative of real samples. Eventually,
we will show on some examples of thermal buildings simulations the
necessity to correctly represent the PCM behaviour if one wants to
use them in the future so as to save energy and for a better comfort.},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
We aim here at presenting the main results of the Stock-E MICMCP ANR
project whose principal goal is the correct thermophysical characterisation
of phase change materials in order to have reliable inputs when considering
numerical simulations of thermal behaviour of buildings. Firstly,
we will present the method developed to determine the function governing
the enthalpy with respect to the temperature of the material. It
is based on the use of experimental measurements together with an
inversion method: by comparing the heat flow with a simulated one,
obtained by assuming an a priori formulation of the enthalpy (which
set some basic thermodynamical constraints), we may calculate the
numerical values of the associated parameters. Secondly, we will
show that this method can be extended to macroscopic and heterogeneous
materials, which are more representative of real samples. Eventually,
we will show on some examples of thermal buildings simulations the
necessity to correctly represent the PCM behaviour if one wants to
use them in the future so as to save energy and for a better comfort. |
2015Article de journal ER5 Auteurs : Tittelein, Pierre; Gibout, Stéphane; Franquet, Erwin; Johannes, Kevyn; Zalewski, Laurent; Kuznik, Frédéric; Dumas, Jean-Pierre; Lassue, Stéphane; Bédécarrats, Jean-Pierre; David, Damien Simulation of the thermal and energy behaviour of a composite material containing encapsulated-PCM: Influence of the thermodynamical modelling Dans: Applied Energy, vol. 140, p. 269–274, 2015, (ACL). @article{titt2015b,
title = {Simulation of the thermal and energy behaviour of a composite material containing encapsulated-PCM: Influence of the thermodynamical modelling},
author = {Pierre Tittelein and Stéphane Gibout and Erwin Franquet and Kevyn Johannes and Laurent Zalewski and Frédéric Kuznik and Jean-Pierre Dumas and Stéphane Lassue and Jean-Pierre Bédécarrats and Damien David},
year = {2015},
date = {2015-01-01},
journal = {Applied Energy},
volume = {140},
pages = {269--274},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2015Conférence ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent Simulation de la minimisation de production d'entropie via la méthode de Boltzmann en vue d'optimiser les performances des matériaux à changement de phase Actes du XIIeme Colloque Interuniversitaire Franco-Québécois sur la Thermique des Systèmes, 2015, (ACTI). @conference{yehy2015a,
title = {Simulation de la minimisation de production d'entropie via la méthode de Boltzmann en vue d'optimiser les performances des matériaux à changement de phase},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski},
year = {2015},
date = {2015-01-01},
booktitle = {Actes du XIIeme Colloque Interuniversitaire Franco-Québécois sur la Thermique des Systèmes},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
|
2015Conférence ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent Lattice Boltzmann simulations to assess heating and cooling strategies of phase change materials based on second-law analysis Proceedings of Ecos2015 : 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, 2015, (ACTI). @conference{yehy2015b,
title = {Lattice Boltzmann simulations to assess heating and cooling strategies of phase change materials based on second-law analysis},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski},
year = {2015},
date = {2015-01-01},
booktitle = {Proceedings of Ecos2015 : 28th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
|
2015Article de journal ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent Assessment of a lattice Boltzmann model to simulate fluid flows with complex geometries Dans: Computational Thermal Sciences: An International Journal, vol. 7, no. 2, p. 139–156, 2015, ISSN: 1940-2503, (ACL). @article{yehy2015d,
title = {Assessment of a lattice Boltzmann model to simulate fluid flows with complex geometries},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski},
issn = {1940-2503},
year = {2015},
date = {2015-01-01},
journal = {Computational Thermal Sciences: An International Journal},
volume = {7},
number = {2},
pages = {139--156},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2015Article de journal ER5 Auteurs : Zalewski, Laurent; Lassue, Stéphane; Favier, Patrick; Anwar, Sohail Energy management of solar wall with automatic controlled ventilation Dans: International Journal of Advanced Engineering Research and Science, vol. Vol-2, no. Issue-1, 2015, ISSN: ISSN: 2349-6495, (ACL). @article{zale2015a,
title = {Energy management of solar wall with automatic controlled ventilation},
author = {Laurent Zalewski and Stéphane Lassue and Patrick Favier and Sohail Anwar},
issn = {ISSN: 2349-6495},
year = {2015},
date = {2015-01-01},
journal = {International Journal of Advanced Engineering Research and Science},
volume = {Vol-2},
number = {Issue-1},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2015Article de journal ER5 Auteurs : Tittelein, Pierre; Gibout, Stéphane; Franquet, Erwin; Zalewski, Laurent; Defer, Didier Identification of Thermal Properties and Thermodynamic Model for a Cement Mortar Containing PCM by Using Inverse Method Dans: Energy Procedia, vol. 78, p. 1696–1701, 2015, ISSN: 1876-6102, (ACL). Résumé | Liens @article{titt2005b,
title = {Identification of Thermal Properties and Thermodynamic Model for a Cement Mortar Containing PCM by Using Inverse Method},
author = {Pierre Tittelein and Stéphane Gibout and Erwin Franquet and Laurent Zalewski and Didier Defer},
url = {http://www.sciencedirect.com/science/article/pii/S1876610215019979},
doi = {10.1016/j.egypro.2015.11.265},
issn = {1876-6102},
year = {2015},
date = {2015-01-01},
urldate = {2016-01-13},
journal = {Energy Procedia},
volume = {78},
pages = {1696--1701},
series = {6th International Building Physics Conference, IBPC 2015},
abstract = {The support of this study is a cement mortar containing a micro-encapsulated phase change material (PCM). The aim of this article is to identify by an inverse method the thermophysical properties of this composite material and all the parameters that are needed to build a physical model able to simulate the thermal behavior of a material containing PCM with accuracy. This approach consist in estimating different parameters that take place in the analytical relation of the enthalpy as a function of the temperature (h(T)) by comparing the response of the model with experimental results (here, heat flux measurement). A simplex algorithm allowed to minimize the quadratic criterion associated. The results obtained by inverse method are then analyzed and compared by experimental results obtained by direct method.},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
The support of this study is a cement mortar containing a micro-encapsulated phase change material (PCM). The aim of this article is to identify by an inverse method the thermophysical properties of this composite material and all the parameters that are needed to build a physical model able to simulate the thermal behavior of a material containing PCM with accuracy. This approach consist in estimating different parameters that take place in the analytical relation of the enthalpy as a function of the temperature (h(T)) by comparing the response of the model with experimental results (here, heat flux measurement). A simplex algorithm allowed to minimize the quadratic criterion associated. The results obtained by inverse method are then analyzed and compared by experimental results obtained by direct method. |
2015Proceedings Article ER5 Auteurs : Tittelein, Pierre; Gibout, Stéphane; Franquet, Erwin; Zalewski, Laurent; Defer, Didier Identification of Thermal Properties and Thermodynamic Model for a Cement Mortar Containing PCM by Using Inverse Method Dans: Proceedings of IBPC 2015, Torino (Italy), 2015, (ACTI). Résumé @inproceedings{titt2016a,
title = {Identification of Thermal Properties and Thermodynamic Model for a Cement Mortar Containing PCM by Using Inverse Method},
author = {Pierre Tittelein and Stéphane Gibout and Erwin Franquet and Laurent Zalewski and Didier Defer},
year = {2015},
date = {2015-01-01},
booktitle = {Proceedings of IBPC 2015},
address = {Torino (Italy)},
abstract = {The support of this study is a cement mortar containing a micro-encapsulated phase change material (PCM). The aim of this article is to identify by an inverse method the thermophysical properties of this composite material and all the parameters that are needed to build a physical model able to simulate the thermal behavior of a material containing PCM with accuracy. This approach consist in estimating different parameters that take place in the analytical relation of the enthalpy as a function of the temperature (h(T)) by comparing the response of the model with experimental results (here, heat flux measurement). A simplex algorithm allowed to minimize the quadratic criterion associated. The results obtained by inverse method are then analyzed and compared by experimental results obtained by direct method.},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
The support of this study is a cement mortar containing a micro-encapsulated phase change material (PCM). The aim of this article is to identify by an inverse method the thermophysical properties of this composite material and all the parameters that are needed to build a physical model able to simulate the thermal behavior of a material containing PCM with accuracy. This approach consist in estimating different parameters that take place in the analytical relation of the enthalpy as a function of the temperature (h(T)) by comparing the response of the model with experimental results (here, heat flux measurement). A simplex algorithm allowed to minimize the quadratic criterion associated. The results obtained by inverse method are then analyzed and compared by experimental results obtained by direct method. |
2015Proceedings Article ER5 Auteurs : Tittelein, Pierre; Gibout, Stéphane; Franquet, Erwin; Zalewski, Laurent; Defer, Didier Identification des propriétés thermophysiques et du modèle thermodynamique par méthode inverse d'un mortier ciment contenant un mcp encapsulé Dans: Actes du CIFQ 2015, Sherbrook, 2015, (ACTI). Résumé @inproceedings{tittelein_identification_2015,
title = {Identification des propriétés thermophysiques et du modèle thermodynamique par méthode inverse d'un mortier ciment contenant un mcp encapsulé},
author = {Pierre Tittelein and Stéphane Gibout and Erwin Franquet and Laurent Zalewski and Didier Defer},
year = {2015},
date = {2015-01-01},
booktitle = {Actes du CIFQ 2015},
address = {Sherbrook},
abstract = {Le support de l'étude est un mortier ciment contenant un matériau à changement de phase (MCP) micro-encapsulé. L'objet consiste à identifier par méthode inverse les propriétés thermophysiques de ce matériau composite et les paramètres nécessaires à la construction d'un modèle capable de simuler de façon fiable le comportement thermique d'un matériau contenant un MCP. Cette approche consiste à estimer les différents paramètres intervenant dans la relation analytique de l'enthalpie en fonction de la température (h(T)) en comparant la réponse du modèle à des mesures expérimentales, ici en l'occurrence des mesures de flux. Un algorithme de type simplexe permet alors de minimiser le critère quadratique correspondant. Les résultats obtenus par méthode inverse sont analysés et comparés à des résultats expérimenatux obtenus par une méthode directe.},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {inproceedings}
}
Le support de l'étude est un mortier ciment contenant un matériau à changement de phase (MCP) micro-encapsulé. L'objet consiste à identifier par méthode inverse les propriétés thermophysiques de ce matériau composite et les paramètres nécessaires à la construction d'un modèle capable de simuler de façon fiable le comportement thermique d'un matériau contenant un MCP. Cette approche consiste à estimer les différents paramètres intervenant dans la relation analytique de l'enthalpie en fonction de la température (h(T)) en comparant la réponse du modèle à des mesures expérimentales, ici en l'occurrence des mesures de flux. Un algorithme de type simplexe permet alors de minimiser le critère quadratique correspondant. Les résultats obtenus par méthode inverse sont analysés et comparés à des résultats expérimenatux obtenus par une méthode directe. |
2015Article de journal ER5 Auteurs : Yehy, Alissar; Naji, Hassane; Zalewski, Laurent Assessment of a Lattice Boltzmann Model to simulate fluid flows with complex geometries Dans: Computational Thermal Sciences, vol. 7, no. 2, p. 139-156, 2015, (ACL). Liens @article{Yehy2015d,
title = {Assessment of a Lattice Boltzmann Model to simulate fluid flows with complex geometries},
author = {Alissar Yehy and Hassane Naji and Laurent Zalewski},
doi = {https://doi.org/10.1615/ComputThermalScien.2015012264},
year = {2015},
date = {2015-01-01},
journal = {Computational Thermal Sciences},
volume = {7},
number = {2},
pages = {139-156},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2015Conférence ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent; hmed. Mezrhab, Optimisation des performances des matériaux à changement de phase par la minimisation de la production d’entropie 12ème Colloque Interuniversitaire Franco-Québécois (CIFQ 2015), 8-10 Juin, 2015, Sherbrooke (Québec), Canada, 2015, (ACTI). @conference{Yehya2015c,
title = {Optimisation des performances des matériaux à changement de phase par la minimisation de la production d’entropie},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski and hmed. Mezrhab},
year = {2015},
date = {2015-01-01},
booktitle = {12ème Colloque Interuniversitaire Franco-Québécois (CIFQ 2015), 8-10 Juin, 2015, Sherbrooke (Québec), Canada},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
|
2015Conférence ER5 Auteurs : Yehya, Alissar; Naji, Hassane; Zalewski, Laurent Lattice Boltzmann simulations to assess heating and cooling strategies of phase-change materials based on second-law analysis 28th Int. Conf on "Efficiency, Cost, Optimisation & Simulation" (ECOS 2015), 30 June - 3 July, 2015, Pau, France, 2015, (ACTI). @conference{Yehya2015d,
title = {Lattice Boltzmann simulations to assess heating and cooling strategies of phase-change materials based on second-law analysis},
author = {Alissar Yehya and Hassane Naji and Laurent Zalewski},
year = {2015},
date = {2015-01-01},
booktitle = {28th Int. Conf on "Efficiency, Cost, Optimisation & Simulation" (ECOS 2015), 30 June - 3 July, 2015, Pau, France},
note = {ACTI},
keywords = {ER5},
pubstate = {published},
tppubtype = {conference}
}
|
2014Article de journal ER5 Auteurs : Dumas, Jean-Pierre; Gibout, Stéphane; Zalewski, Laurent; Johannes, Kévyn; Franquet, Erwin; Lassue, Stéphane; Bédécarrats, Jean-Pierre; Tittelein, Pierre; Kuznik, Frédéric Interpretation of calorimetry experiments to characterise phase change materials Dans: International Journal of Thermal Sciences, vol. 78, p. 48–55, 2014, (ACL). @article{Dumas2014,
title = {Interpretation of calorimetry experiments to characterise phase change materials},
author = {Jean-Pierre Dumas and Stéphane Gibout and Laurent Zalewski and Kévyn Johannes and Erwin Franquet and Stéphane Lassue and Jean-Pierre Bédécarrats and Pierre Tittelein and Frédéric Kuznik},
year = {2014},
date = {2014-01-01},
journal = {International Journal of Thermal Sciences},
volume = {78},
pages = {48--55},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
2014Article de journal ER5 Auteurs : Dutil, Yvan; Rousse, Daniel; Lassue, Stéphane; Zalewski, Laurent; Joulin, Annabelle; Virgone, Joseph; Kuznik, Frédéric; Johannes, Kevyn; Dumas, Jean-Pierre; Bédécarrats, Jean-Pierre; others, Modeling phase change materials behavior in building applications: Comments on material characterization and model validation Dans: Renewable Energy, vol. 61, p. 132–135, 2014, (ACL). @article{Dutil2014,
title = {Modeling phase change materials behavior in building applications: Comments on material characterization and model validation},
author = {Yvan Dutil and Daniel Rousse and Stéphane Lassue and Laurent Zalewski and Annabelle Joulin and Joseph Virgone and Frédéric Kuznik and Kevyn Johannes and Jean-Pierre Dumas and Jean-Pierre Bédécarrats and others},
year = {2014},
date = {2014-01-01},
journal = {Renewable Energy},
volume = {61},
pages = {132--135},
publisher = {Elsevier},
note = {ACL},
keywords = {ER5},
pubstate = {published},
tppubtype = {article}
}
|
