{"id":4644,"date":"2026-09-07T02:00:00","date_gmt":"2026-09-07T02:00:00","guid":{"rendered":"https:\/\/www.26yc.com\/membrane-air-conditioning-systems\/"},"modified":"2026-10-08T23:36:10","modified_gmt":"2026-10-09T06:36:10","slug":"membrane-air-conditioning-systems","status":"publish","type":"post","link":"https:\/\/www.26yc.com\/fr\/membrane-air-conditioning-systems\/","title":{"rendered":"Membrane Air Conditioning Systems"},"content":{"rendered":"<p>Membrane air conditioning systems separate the sensible and latent cooling loads using a liquid-desiccant loop and a membrane contactor, rather than a single overcooling coil. The result is drier supply air at a higher coil evaporating temperature &mdash; which raises the chiller COP.<\/p>\n<h2>Core Components<\/h2>\n<p>A typical unit pairs a <a href=\"https:\/\/www.26yc.com\/fr\/membrane-energy-recovery-ventilation\/\">membrane energy recovery ventilation<\/a> core with a desiccant regenerator. The air-side hardware follows standard <a href=\"https:\/\/www.26yc.com\/fr\/ahu-components\/\">AHU components<\/a>: fans, filters, coils, and the membrane module.<\/p>\n<h2>Why Higher Evaporating Temperature Helps<\/h2>\n<ul>\n<li>Less compressor lift &rarr; higher COP.<\/li>\n<li>Less reheat energy because the coil no longer overcools.<\/li>\n<li>Better control of supply RH independent of supply temperature.<\/li>\n<\/ul>\n<h2>Where It Pays Back<\/h2>\n<table>\n<tr>\n<th>Building type<\/th>\n<th>Benefit<\/th>\n<\/tr>\n<tr>\n<td>Humid-climate offices<\/td>\n<td>Large latent load, strong fit<\/td>\n<\/tr>\n<tr>\n<td>Laboratories<\/td>\n<td>See <a href=\"https:\/\/www.26yc.com\/fr\/laboratory-heat-recovery\/\">laboratory heat recovery<\/a><\/td>\n<\/tr>\n<tr>\n<td>Dry climates<\/td>\n<td>Marginal &mdash; use sensible recovery<\/td>\n<\/tr>\n<\/table>\n<p>For sizing the air handler around a membrane module, use the method in <a href=\"https:\/\/www.26yc.com\/fr\/ahu-selection-calculation\/\">AHU selection calculation<\/a>. Membrane AC is best viewed as an extension of total-energy recovery, not a replacement for it.<\/p>\n<h2>Putting the Pieces Together<\/h2>\n<p>In practice a membrane AC system is a packaged air handler: outdoor and return air pass through the membrane contactor where a liquid desiccant pulls moisture out of the supply stream, while a separate sensible recovery core handles the temperature side. The desiccant is then regenerated, ideally with recovered heat, and circulated in a closed loop. Because the cooling coil now deals only with sensible load at a higher evaporating temperature, the chiller or DX plant runs fewer compressors and reaches a better COP. Controls must coordinate three loops, supply temperature, supply humidity, and desiccant concentration, so a modest building-management sequence is needed. Retrofit cases usually keep the existing coils and add the membrane module and desiccant circuit, which limits capital outlay. The approach suits humid-climate offices and labs most, where latent load dominates; in dry climates the added complexity rarely pays back versus plain sensible recovery.<\/p>\n<h2>Questions fr\u00e9quemment pos\u00e9es<\/h2>\n<p><strong>How does a membrane air-conditioning system raise chiller COP?<\/strong><br \/>By removing latent load with a desiccant loop at a higher coil evaporating temperature, which reduces compressor lift.<\/p>\n<p><strong>What are the main components?<\/strong><br \/>A membrane contactor, a liquid-desiccant regenerator, a sensible recovery core, and the standard AHU fans, filters, and coils.<\/p>\n<p><strong>Is membrane AC a replacement for energy recovery?<\/strong><br \/>No. It is best viewed as an extension of total-energy recovery that handles the latent load a basic core does not.<\/p>\n<p><strong>Where does membrane AC pay back best?<\/strong><br \/>In humid-climate offices and laboratories with large latent loads; dry climates see marginal benefit versus plain sensible recovery.<\/p>\n<div class=\"yc-related\">\n<h3>Articles connexes<\/h3>\n<ul>\n<li><a href=\"https:\/\/www.26yc.com\/fr\/industrial-drying-heat-recovery\/\" title=\"R\u00e9cup\u00e9ration de chaleur pour le s\u00e9chage industriel et l&#039;agriculture\">R\u00e9cup\u00e9ration de chaleur pour le s\u00e9chage industriel et l'agriculture<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Membrane air conditioning systems separate the sensible and latent cooling loads using a liquid-desiccant loop and a membrane contactor, rather than a single overcooling coil. The result is drier supply air at a higher coil evaporating temperature &mdash; which raises the chiller COP. Core Components A typical unit pairs a membrane energy recovery ventilation core [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[197,242],"tags":[258],"class_list":["post-4644","post","type-post","status-publish","format-standard","hentry","category-encyclopedia","category-exchanger-types","tag-membrane"],"_links":{"self":[{"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/posts\/4644","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/comments?post=4644"}],"version-history":[{"count":2,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/posts\/4644\/revisions"}],"predecessor-version":[{"id":5192,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/posts\/4644\/revisions\/5192"}],"wp:attachment":[{"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/media?parent=4644"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/categories?post=4644"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.26yc.com\/fr\/wp-json\/wp\/v2\/tags?post=4644"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}