New formulation and characterization of enhanced bulk-organic phase change materials

The main drawbacks faced by researchers to successfully implement organic-PCM as materials to improve the thermal performance of building systems are their low thermal conductivity, their high flammability, and their low thermal cycling stability. T In the present work, authors present a new enhance...

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Autores: Palacios, Anabel, Gracia Cuesta, Alvaro de, Cabeza, Luisa F., Julià Bolivar, José Enrique, Fernández Renna, Ana Inés, Barreneche Güerisoli, Camila
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/62683
Acceso en línea:https://doi.org/10.1016/j.enbuild.2018.01.069
http://hdl.handle.net/10459.1/62683
Access Level:acceso abierto
Palabra clave:Phase change materials (PCM)
Thermal energy storage (TES)
Thermal enhancement
Graphite
Flame retardants
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spelling New formulation and characterization of enhanced bulk-organic phase change materialsPalacios, AnabelGracia Cuesta, Alvaro deCabeza, Luisa F.Julià Bolivar, José EnriqueFernández Renna, Ana InésBarreneche Güerisoli, CamilaPhase change materials (PCM)Thermal energy storage (TES)Thermal enhancementGraphiteFlame retardantsThe main drawbacks faced by researchers to successfully implement organic-PCM as materials to improve the thermal performance of building systems are their low thermal conductivity, their high flammability, and their low thermal cycling stability. T In the present work, authors present a new enhanced PCM formulations aimed to solve the stated disadvantages in organic bulk-PCM. The new enhanced PCM were prepared by adding high thermal conductivity particles and two kinds of flame retardants into organic PCM (paraffin and fatty acid eutectic mixtures). In the first stage, the effective thermal conductivity of organic-PCM was increased by using two different methods: directly dispersion of powder graphite (PG) bulk-PCM and vacuum impregnation of PCM into expanded graphite (EG). In the second stage, the fire reaction behaviour of the thermal conductivity enhanced PCM formulations was improved by adding two kind of flame retardant: magnesium hydroxide and ammonium phosphate (APP).. Their fire reaction behaviour, thermal conductivity and thermophysical properties were measured by adapting the dripping test (UNE 23727-90), the hot-wire method and Differential Scanning Calorimetry (DSC), respectively. The enhanced PCM composites show a self-extinguished behaviour in terms of fire performance mechanism. The EG working with endothermic and phosphates flame retardants improve the fire performance of PCM by acting as a synergic system and the thermal conductivity is increased. However, their thermal storage capacity is significant decreased due to the large amount of flame retardant added (up to 40%). The thermal reliability was also tested, the enhanced PCM composites were stable up to 1000 thermal cycles.The research leading to these results has received funding from the European Commission Seventh Framework Programme (FP/2007-2013) under grant agreement n° PIRSES-GA-2013-610692 (INNOSTORAGE) and from the European Union's Horizon 2020 research and innovation program under grant agreement No 657466 (INPATH-TES). The authors would like to thank the Catalan Government for the quality accreditation given to their research groups GREA (2014 SGR 123), DIOPMA (2014 SGR 1543) and GICITED (2014 SGR 1298). The work partially funded by the Spanish government (ENE2015-64117-C5-1-R (MINECO/FEDER), ENE2015-64117-C5-2-R(MINECO/FEDER), and ENE2015-64117-C5-3-R(MINECO/FEDER)). Dr. Alvaro de Gracia and Dr. Camila Barreneche would like to thank Ministerio de Economia y Competitividad de España for Grant Juan de la Cierva, FJCI-2014-19940 and FJCI-2014-22886, respectively.Elsevier2018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://doi.org/10.1016/j.enbuild.2018.01.069http://hdl.handle.net/10459.1/62683reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-1-Rinfo:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-2-Rinfo:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-3-RVersió postprint del document publicat a: https://doi.org/10.1016/j.enbuild.2018.01.069Energy and Buildings, 2018, vol. 167, p. 38-48info:eu-repo/grantAgreement/EC/FP7/610692info:eu-repo/grantAgreement/EC/H2020/657466cc-by-nc-nd, (c) Elsevier, 2018info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/oai:repositori.udl.cat:10459.1/626832026-06-24T12:42:17Z
dc.title.none.fl_str_mv New formulation and characterization of enhanced bulk-organic phase change materials
title New formulation and characterization of enhanced bulk-organic phase change materials
spellingShingle New formulation and characterization of enhanced bulk-organic phase change materials
Palacios, Anabel
Phase change materials (PCM)
Thermal energy storage (TES)
Thermal enhancement
Graphite
Flame retardants
title_short New formulation and characterization of enhanced bulk-organic phase change materials
title_full New formulation and characterization of enhanced bulk-organic phase change materials
title_fullStr New formulation and characterization of enhanced bulk-organic phase change materials
title_full_unstemmed New formulation and characterization of enhanced bulk-organic phase change materials
title_sort New formulation and characterization of enhanced bulk-organic phase change materials
dc.creator.none.fl_str_mv Palacios, Anabel
Gracia Cuesta, Alvaro de
Cabeza, Luisa F.
Julià Bolivar, José Enrique
Fernández Renna, Ana Inés
Barreneche Güerisoli, Camila
author Palacios, Anabel
author_facet Palacios, Anabel
Gracia Cuesta, Alvaro de
Cabeza, Luisa F.
Julià Bolivar, José Enrique
Fernández Renna, Ana Inés
Barreneche Güerisoli, Camila
author_role author
author2 Gracia Cuesta, Alvaro de
Cabeza, Luisa F.
Julià Bolivar, José Enrique
Fernández Renna, Ana Inés
Barreneche Güerisoli, Camila
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Phase change materials (PCM)
Thermal energy storage (TES)
Thermal enhancement
Graphite
Flame retardants
topic Phase change materials (PCM)
Thermal energy storage (TES)
Thermal enhancement
Graphite
Flame retardants
description The main drawbacks faced by researchers to successfully implement organic-PCM as materials to improve the thermal performance of building systems are their low thermal conductivity, their high flammability, and their low thermal cycling stability. T In the present work, authors present a new enhanced PCM formulations aimed to solve the stated disadvantages in organic bulk-PCM. The new enhanced PCM were prepared by adding high thermal conductivity particles and two kinds of flame retardants into organic PCM (paraffin and fatty acid eutectic mixtures). In the first stage, the effective thermal conductivity of organic-PCM was increased by using two different methods: directly dispersion of powder graphite (PG) bulk-PCM and vacuum impregnation of PCM into expanded graphite (EG). In the second stage, the fire reaction behaviour of the thermal conductivity enhanced PCM formulations was improved by adding two kind of flame retardant: magnesium hydroxide and ammonium phosphate (APP).. Their fire reaction behaviour, thermal conductivity and thermophysical properties were measured by adapting the dripping test (UNE 23727-90), the hot-wire method and Differential Scanning Calorimetry (DSC), respectively. The enhanced PCM composites show a self-extinguished behaviour in terms of fire performance mechanism. The EG working with endothermic and phosphates flame retardants improve the fire performance of PCM by acting as a synergic system and the thermal conductivity is increased. However, their thermal storage capacity is significant decreased due to the large amount of flame retardant added (up to 40%). The thermal reliability was also tested, the enhanced PCM composites were stable up to 1000 thermal cycles.
publishDate 2018
dc.date.none.fl_str_mv 2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.enbuild.2018.01.069
http://hdl.handle.net/10459.1/62683
url https://doi.org/10.1016/j.enbuild.2018.01.069
http://hdl.handle.net/10459.1/62683
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-1-R
info:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-2-R
info:eu-repo/grantAgreement/MINECO//ENE2015-64117-C5-3-R
Versió postprint del document publicat a: https://doi.org/10.1016/j.enbuild.2018.01.069
Energy and Buildings, 2018, vol. 167, p. 38-48
info:eu-repo/grantAgreement/EC/FP7/610692
info:eu-repo/grantAgreement/EC/H2020/657466
dc.rights.none.fl_str_mv cc-by-nc-nd, (c) Elsevier, 2018
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
rights_invalid_str_mv cc-by-nc-nd, (c) Elsevier, 2018
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
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