{"id":27642,"date":"2026-05-19T09:35:37","date_gmt":"2026-05-19T07:35:37","guid":{"rendered":"https:\/\/greth.fr\/?p=27642"},"modified":"2026-05-19T10:24:07","modified_gmt":"2026-05-19T08:24:07","slug":"preuve-de-concept-dune-pompe-a-chaleur-elastocalorique-pour-la-refrigeration-a-temperature-proche-de-la-piece-utilisant-du-caoutchouc-naturel","status":"publish","type":"post","link":"https:\/\/greth.fr\/en\/preuve-de-concept-dune-pompe-a-chaleur-elastocalorique-pour-la-refrigeration-a-temperature-proche-de-la-piece-utilisant-du-caoutchouc-naturel\/","title":{"rendered":"Elastocaloric Heat Pump Proof of Concept for Near Room Temperature Refrigeration Using Natural Rubber"},"content":{"rendered":"<strong><span style=\"text-decoration: underline;\">Summary :<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">Nowadays, most refrigeration devices are based on gas compression. The use of these compressed gases has led to serious issues such as ozone depletion and high global warming potential. Several generations of refrigerant gases have been successively banned due to their toxicity, safety issues or negative impact on the environment.<\/p>\n<p>An alternative is the use of caloric materials that can be used to achieve liquid-solid refrigeration with regenerative systems or solid-solid refrigeration using single-stage refrigeration systems. Caloric materials are known to be subject to temperature variations when subjected to external loading. These materials are divided into four categories: magnetocaloric, electrocaloric, barocaloric and elastocaloric, depending on the type of loading, magnetic field, electric field, pressure or uniaxial stress, respectively. Elastocaloric materials are divided into two categories, shape memory alloys, such as Nickel Titanium (Ni-Ti) alloys, and polymers, such as natural rubber.<\/p>\n<p>Polymers have not been extensively studied for the design of elastocaloric refrigeration systems. However, natural rubber is an interesting material for solid-state refrigeration as it is inexpensive and has a low environmental impact. The use of natural rubber, which can be considered as a thermal insulating material, is challenging.<\/p>\n<p>The aim of this work is to get a better understanding of how natural rubber can be a good candidate for solid refrigeration for a single-stage refrigeration system. It is necessary to understand which key parameters are the most important to obtain the best temperature span and cooling power. The main scientific questions are about the possibility to obtain a better understanding of the transfer mechanisms and whether scaling up the refrigeration system can achieve larger temperature span and higher cooling power. In order to answer these questions, this PhD work focuses on the development and performance evaluation of an elastocaloric refrigeration system using natural rubber.<\/p>\n<table border=\"1\" width=\"100%\">\n<tbody>\n<tr>\n<td><strong>Author<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Marianne SION<\/td>\n<\/tr>\n<tr>\n<td><strong>Date of presentation<\/strong><\/td>\n<\/tr>\n<tr>\n<td>2025, august 04th<\/td>\n<\/tr>\n<tr>\n<td><strong>Keywords<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Elastocaloric refrigeration system, Heat transfer, Modeling and experimentation<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n<div class=\"eds-animate edsanimate-sis-hidden\" data-eds-entry-animation=\"bounceIn\" data-eds-entry-delay=\"0\" data-eds-entry-duration=\"1\" data-eds-entry-timing=\"linear\" data-eds-exit-animation=\"\" data-eds-exit-delay=\"\" data-eds-exit-duration=\"\" data-eds-exit-timing=\"\" data-eds-repeat-count=\"1\" data-eds-keep=\"yes\" data-eds-animate-on=\"load\" data-eds-scroll-offset=\"\">\n\t\t<div class=\"box info\">\n\t\t\t<div class=\"box-inner-block\">\n\t\t\t\t<span class=\"fa tie-shortcode-boxicon\"><\/span>\n<p style=\"text-align: justify;\"><strong>&#x2666; The full version is only available for subscribers <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #3db2ea; color: #fff;\">\"ESSENTIEL\"<\/span><\/a> or <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #c6002c; color: #fff;\">\"PREMIUM\"<\/span><\/a> of GRETh!<\/strong><\/p>\n<p>&#x2666; If you are already a member \/ subscriber, you must identify yourself by <a href=\"\/wp-login.php\"><strong>clicking here<\/strong><\/a>.<br \/>\n&#x2666; If you are not a member, you can consult the offer proposed by GRETh by <a href=\"\/en\/offre-du-greth\/\"><strong>clicking here<\/strong><\/a> as well as the conditions of membership by <a href=\"\/en\/conditions-adhesion\/\"><strong>clicking here<\/strong><\/a>.\n\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>","protected":false},"excerpt":{"rendered":"<p>R\u00e9sum\u00e9 : De nos jours, la plupart des syst\u00e8mes de r\u00e9frig\u00e9ration se basent sur la compression de gaz. Des alternatives doivent \u00eatre trouv\u00e9es, avec notamment les mat\u00e9riaux caloriques. Le caoutchouc naturel est un mat\u00e9riau \u00e9lastocalorique qui varie en temp\u00e9rature lorsqu\u2019il est soumis \u00e0 une contrainte uniaxiale. Le but de cette th\u00e8se est de mieux comprendre la possibilit\u00e9 d\u2019utiliser le caoutchouc naturel comme frigorig\u00e8ne solide afin de r\u00e9aliser un syst\u00e8me de r\u00e9frig\u00e9ration \u00e9lastocalorique, ainsi que la possibilit\u00e9 de mise \u00e0 l\u2019\u00e9chelle d\u2019un syst\u00e8me de r\u00e9frig\u00e9ration \u00e9lastocalorique<\/p>","protected":false},"author":1,"featured_media":964,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,21],"tags":[6963,6962,6378],"class_list":["post-27642","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-documents","category-memoires-theses","tag-modelisation-et-experimentation","tag-refrigeration-elastocalorique","tag-transfert-de-chaleur"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v27.6) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Preuve de concept d&#039;une pompe \u00e0 chaleur \u00e9lastocalorique pour la r\u00e9frig\u00e9ration \u00e0 temp\u00e9rature proche de la pi\u00e8ce utilisant du caoutchouc naturel - GRETh<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/greth.fr\/en\/preuve-de-concept-dune-pompe-a-chaleur-elastocalorique-pour-la-refrigeration-a-temperature-proche-de-la-piece-utilisant-du-caoutchouc-naturel\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Preuve de concept d&#039;une pompe \u00e0 chaleur \u00e9lastocalorique pour la r\u00e9frig\u00e9ration \u00e0 temp\u00e9rature proche de la pi\u00e8ce utilisant du caoutchouc naturel\" \/>\n<meta property=\"og:description\" content=\"R\u00e9sum\u00e9 : De nos jours, la plupart des syst\u00e8mes de r\u00e9frig\u00e9ration se basent sur la compression de gaz. 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Le but de cette th\u00e8se est de mieux comprendre la possibilit\u00e9 d\u2019utiliser le caoutchouc naturel comme frigorig\u00e8ne solide afin de r\u00e9aliser un syst\u00e8me de r\u00e9frig\u00e9ration \u00e9lastocalorique, ainsi que la possibilit\u00e9 de mise \u00e0 l\u2019\u00e9chelle d\u2019un syst\u00e8me de r\u00e9frig\u00e9ration \u00e9lastocalorique\" \/>\n<meta property=\"og:url\" content=\"https:\/\/greth.fr\/en\/preuve-de-concept-dune-pompe-a-chaleur-elastocalorique-pour-la-refrigeration-a-temperature-proche-de-la-piece-utilisant-du-caoutchouc-naturel\/\" \/>\n<meta property=\"og:site_name\" content=\"GRETh\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/grethfr\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-19T07:35:37+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-05-19T08:24:07+00:00\" \/>\n<meta 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