{"id":18187,"date":"2023-01-25T11:45:06","date_gmt":"2023-01-25T10:45:06","guid":{"rendered":"https:\/\/greth.fr\/?p=18187"},"modified":"2023-04-14T14:49:25","modified_gmt":"2023-04-14T12:49:25","slug":"zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems","status":"publish","type":"post","link":"https:\/\/greth.fr\/en\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\/","title":{"rendered":"Zeotropic mixtures study in plate heat exchangers and ORC systems"},"content":{"rendered":"<p style=\"text-align: justify;\">As part of its activities of technical and scientific literature watch and synthesis, GRETh promotes on its website, a number of publications: patents, thesis reports, articles. These documents are provided as abstracts or in their entirety for GRETh members (depending on the distribution rights imposed by the original publishers of these documents).<\/p>\n<p style=\"text-align: justify;\">Thus, you will find here an article co-authored by GRETh on the study of zeotropic mixtures two-phase phenomena, in evaporation and condensation, within brazed plate heat exchangers :<\/p>\n<p style=\"text-align: center;\"><strong><em>\u00ab Zeotropic mixtures study in plate heat exchangers and ORC systems \u00bb<\/em><\/strong><\/p>\n<p>\n<strong><span style=\"text-decoration: underline;\">Summary :<\/span><\/strong><\/p>\n<p style=\"text-align: justify;\">Based on the known scientific literature, there are no correlations in the scientific literature to predict the two-phase heat transfer coefficients of Hydrofluoroethers pure fluids and zeotropic mixtures used in plate heat exchangers.<\/p>\n<p style=\"text-align: justify;\">This work has allowed the development of evaporation and condensation correlations for such fluids. Correlations based on dimensionless numbers and working fluids critical properties gave promising results, with a prediction of the two-phase heat transfer coefficient around 15% for heat source and 50% for cooling source which led respectively to a prediction of 4% and 6% for the global thermal power exchanged.<\/p>\n<p style=\"text-align: justify;\">The behavior of the Organic Rankine Cycle heat sources and the working fluids used within was also been studied. For this purpose, the influence of the heat sources flow rates variation on the performance of the hot and cold exchangers was analyzed. Results obtained showed a similar behavior and performance variation of the heat exchangers both when using pure fluids and zeotropic mixtures.<\/p>\n<p style=\"text-align: justify;\">Zeotropic mixtures working fluids in ORC system are often supposed in the literature to significantly increase the performance of this thermodynamic cycle due to better heat transfer at the hot source. Nevertheless, the great majority of these studies are numerical and do not take into account the interactions and system effects existing within the thermodynamic cycle when using a mixture instead of a pure fluid. This work has allowed to highlight this complexity and to provide a better understanding of the use of zeotropic mixtures.<\/p>\n\n<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/greth.fr\/wp-content\/uploads\/2023\/04\/visuel3.jpg\" alt=\"\" width=\"793\" height=\"448\" class=\"aligncenter size-full wp-image-15806\" \/><\/p>\n\n<table width=\"100%\" border=\"1\">\n<tr>\n<td><strong>Author(s)<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Quentin BLONDEL, Nicolas TAUVERON, Guillaume LHERMET, Nadia CANEY<\/td>\n<\/tr>\n<tr>\n<td><strong>DOI<\/strong><\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1359431122013485?via%3Dihub\" rel=\"noopener\" target=\"_blank\">https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S1359431122013485?via%3Dihub<\/a><\/td>\n<\/tr>\n<tr>\n<td><strong>Year<\/strong><\/td>\n<\/tr>\n<tr>\n<td>2023<\/td>\n<\/tr>\n<tr>\n<td><strong>Keywords<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Organic Rankine Cycle (ORC), Zeotropic mixtures, low GWP fluids, waste heat, two phase correlations, heat transfer coefficient, condensation, evaporation, plate heat exchangers.<\/td>\n<\/tr>\n<\/table>\n\n\n&nbsp;<br \/>\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 GRETh <a style=\"text-decoration: none;\" href=\"\/en\/offre-du-greth\/\"><span style=\"background-color: #c6002c; color: #fff;\">\"PREMIUM\"<\/span><\/a> members!<\/strong><\/p>\n<p>&#x2666; If you are not a GRETh member, you can consult the offer proposed by GRETh <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>Dans le cadre de ses activit\u00e9s de veille et synth\u00e8se de la litt\u00e9rature technique et scientifique, le GRETh met en avant sur son site internet, un certain nombre de publications : brevets, rapports de th\u00e8se, articles. Ces documents sont mis \u00e0 disposition sous forme de r\u00e9sum\u00e9 ou dans leur int\u00e9gralit\u00e9 pour les membres de l\u2019association GRETh (en fonction des droits de diffusion impos\u00e9s par les \u00e9diteurs originaux de ces documents).<\/p>","protected":false},"author":1,"featured_media":18188,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20,55],"tags":[6480,6629,6381,6628,6625,6630,6390,6627,6626],"class_list":["post-18187","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-documents","category-publications","tag-chaleur-fatale","tag-coefficient-de-transfert-thermique","tag-condensation","tag-correlations-diphasiques","tag-cycle-organique-de-rankine-orc","tag-echangeurs-a-plaques","tag-evaporation","tag-fluides-a-faible-gwp","tag-melanges-zeotropes"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Zeotropic mixtures study in plate heat exchangers and ORC systems - 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\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Zeotropic mixtures study in plate heat exchangers and ORC systems\" \/>\n<meta property=\"og:description\" content=\"Dans le cadre de ses activit\u00e9s de veille et synth\u00e8se de la litt\u00e9rature technique et scientifique, le GRETh met en avant sur son site internet, un certain nombre de publications : brevets, rapports de th\u00e8se, articles. Ces documents sont mis \u00e0 disposition sous forme de r\u00e9sum\u00e9 ou dans leur int\u00e9gralit\u00e9 pour les membres de l\u2019association GRETh (en fonction des droits de diffusion impos\u00e9s par les \u00e9diteurs originaux de ces documents).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/greth.fr\/en\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\/\" \/>\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=\"2023-01-25T10:45:06+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-04-14T12:49:25+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/greth.fr\/wp-content\/uploads\/2023\/04\/pub2023-01-visuel.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"793\" \/>\n\t<meta property=\"og:image:height\" content=\"448\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"GRETh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@grethfr\" \/>\n<meta name=\"twitter:site\" content=\"@grethfr\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"GRETh\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/\"},\"author\":{\"name\":\"GRETh\",\"@id\":\"https:\\\/\\\/greth.fr\\\/#\\\/schema\\\/person\\\/6e173032c4ce46c14339ff999b721f00\"},\"headline\":\"Zeotropic mixtures study in plate heat exchangers and ORC systems\",\"datePublished\":\"2023-01-25T10:45:06+00:00\",\"dateModified\":\"2023-04-14T12:49:25+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/\"},\"wordCount\":1257,\"publisher\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/greth.fr\\\/wp-content\\\/uploads\\\/2023\\\/04\\\/pub2023-01-visuel.jpg\",\"keywords\":[\"chaleur fatale\",\"coefficient de transfert thermique\",\"condensation\",\"corr\u00e9lations diphasiques\",\"Cycle Organique de Rankine (ORC)\",\"\u00e9changeurs \u00e0 plaques\",\"\u00e9vaporation\",\"Fluides \u00e0 faible GWP\",\"M\u00e9langes Z\u00e9otropes\"],\"articleSection\":[\"Documents\",\"Publications\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/\",\"url\":\"https:\\\/\\\/greth.fr\\\/zeotropic-mixtures-study-in-plate-heat-exchangers-and-orc-systems\\\/\",\"name\":\"Zeotropic mixtures study in plate heat exchangers and ORC systems - 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