Experimental devices to investigate the long‐term stability of phase change materials under application conditions

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-li...

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Detalhes bibliográficos
Autores: Rathgeber, Christoph, Hiebler, Stefan, Bayón, Rocío, Cabeza, Luisa F., Zsembinszki, Gabriel, Englmair, Gerald, Dannemand, Mark, Diarce, Gonzalo, Fellmann, Oliver, Ravott, Rebecca, Groulx, Dominic, Kheirabadi, Ali C., Gschwander, Stefan, Höhlein, Stephan, König-Haagen, Andreas, Baupere, Noé, Zalewski, Laurent
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Recursos:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/69889
Acesso em linha:https://doi.org/10.3390/app10227968
http://hdl.handle.net/10459.1/69889
Access Level:acceso abierto
Palavra-chave:Phase change materials (PCM)
Latent heat storage
Degradation
Thermal cycling stability
Stable supercooling
Descrição
Resumo: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.

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