{"id":14209,"date":"2025-08-27T13:42:07","date_gmt":"2025-08-27T11:42:07","guid":{"rendered":"https:\/\/ssrei.ch\/?p=14209"},"modified":"2025-08-27T17:24:03","modified_gmt":"2025-08-27T15:24:03","slug":"limportance-de-la-ventilation-mecanique","status":"publish","type":"post","link":"https:\/\/ssrei.ch\/fr\/limportance-de-la-ventilation-mecanique\/","title":{"rendered":"L\u2019importance de la ventilation m\u00e9canique"},"content":{"rendered":"<h5>Les \u00e9tudes montrent que les b\u00e2timents Minergie g\u00e9n\u00e8rent 3 \u00e0 5 % de revenus locatifs en plus que les b\u00e2timents non certifi\u00e9s. Cela s\u2019explique par des co\u00fbts \u00e9nerg\u00e9tiques plus faibles et un confort de vie sup\u00e9rieur. Les syst\u00e8mes de ventilation y contribuent de mani\u00e8re significative.<\/h5>\n<p>Beaucoup d\u2019architectes et de ma\u00eetres d\u2019ouvrage sont critiques envers les syst\u00e8mes de ventilation. Les co\u00fbts d\u2019acquisition, la consommation d\u2019\u00e9lectricit\u00e9, l\u2019espace n\u00e9cessaire, le niveau sonore et la transmission des odeurs contribuent entre autres \u00e0 cette image n\u00e9gative. Pourtant, on oublie que la grande majorit\u00e9 des syst\u00e8mes de ventilation ont depuis longtemps surmont\u00e9 ces inconv\u00e9nients et que les investissements sont largement compens\u00e9s par la r\u00e9duction des besoins \u00e9nerg\u00e9tiques \u2014 \u00e0 condition que les syst\u00e8mes soient correctement mis en service, entretenus conform\u00e9ment aux normes, et que les \u00e9conomies ne soient pas annul\u00e9es par un mauvais comportement des locataires.<\/p>\n<p>Bien que le confort accru et l\u2019absence de dommages li\u00e9s aux b\u00e2timents gr\u00e2ce aux syst\u00e8mes de ventilation soient g\u00e9n\u00e9ralement connus et incontest\u00e9s, leur contribution \u00e0 l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique dans le secteur de la construction est encore peu reconnue. Celle-ci est assur\u00e9e par la r\u00e9cup\u00e9ration de chaleur, dont l\u2019efficacit\u00e9 augmente lorsque la temp\u00e9rature ext\u00e9rieure baisse. Ainsi, l\u2019air ext\u00e9rieur est r\u00e9chauff\u00e9 \u00e0 l\u2019aide de l\u2019air extrait sortant, sans consommation d\u2019\u00e9nergie suppl\u00e9mentaire. Un effet tr\u00e8s agr\u00e9able de ce r\u00e9chauffement est l\u2019\u00e9limination des courants d\u2019air.<br \/>\nLe rendement de cette r\u00e9cup\u00e9ration de chaleur n\u2019est certes pas de 100 %, mais il est suffisamment \u00e9lev\u00e9 (&gt;85 %) pour envisager une \u00e9conomie d\u2019\u00e9nergie de chauffage de 15 \u00e0 25 %.<\/p>\n<p>Cependant, l\u2019important n\u2019est pas seulement l\u2019ampleur de cette \u00e9conomie, mais aussi son moment. Dans le cadre de la transition des \u00e9nergies fossiles vers des pompes \u00e0 chaleur \u00e9lectriques, cette couverture des pics, c\u2019est-\u00e0-dire la puissance de chauffage lors de temp\u00e9ratures ext\u00e9rieures tr\u00e8s basses, rev\u00eat une importance particuli\u00e8re. En effet, la consommation \u00e9lectrique des pompes \u00e0 chaleur augmente lorsque la temp\u00e9rature ext\u00e9rieure baisse. Pendant les mois d\u2019hiver, cette \u00e9nergie ne peut cependant \u00eatre que partiellement couverte par l\u2019\u00e9lectricit\u00e9 photovolta\u00efque produite sur le b\u00e2timent. \u00c0 l\u2019heure actuelle, aucune solution de stockage de l\u2019\u00e9lectricit\u00e9 photovolta\u00efque exc\u00e9dentaire estivale n\u2019est connue. Il est \u00e9galement incertain comment les capacit\u00e9s des r\u00e9seaux n\u00e9cessaires pour alimenter les pompes \u00e0 chaleur en \u00e9lectricit\u00e9 pourront \u00eatre cr\u00e9\u00e9es. Sans sources d\u2019\u00e9lectricit\u00e9 suppl\u00e9mentaires comme les centrales \u00e0 gaz combin\u00e9es ou les centrales nucl\u00e9aires, des probl\u00e8mes d\u2019approvisionnement sont in\u00e9vitables. Mais c\u2019est pr\u00e9cis\u00e9ment l\u00e0 que s\u2019exprime une forte opposition politique. Toute \u00e9nergie de chauffage que les pompes \u00e0 chaleur n\u2019ont pas \u00e0 produire est donc extr\u00eamement importante. Gr\u00e2ce \u00e0 la r\u00e9cup\u00e9ration de chaleur, les syst\u00e8mes de ventilation contribuent de mani\u00e8re significative, surtout lors des p\u00e9riodes de pointe de la saison de chauffage, en aidant \u00e0 r\u00e9duire la demande de chauffage. C\u2019est pourquoi ils devraient figurer \u00e0 l\u2019agenda politique \u2013 comme c\u2019est d\u00e9j\u00e0 le cas dans les pays scandinaves, o\u00f9 la ventilation avec r\u00e9cup\u00e9ration de chaleur est l\u00e9galement obligatoire.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Les \u00e9tudes montrent que les b\u00e2timents Minergie g\u00e9n\u00e8rent 3 \u00e0 5 % de revenus locatifs en plus que les b\u00e2timents non certifi\u00e9s. Cela s\u2019explique par des co\u00fbts \u00e9nerg\u00e9tiques plus faibles et un confort de vie sup\u00e9rieur. Les syst\u00e8mes de ventilation y contribuent de mani\u00e8re significative. Beaucoup d\u2019architectes et de ma\u00eetres d\u2019ouvrage sont critiques envers les&#8230;<\/p>\n","protected":false},"author":5,"featured_media":14207,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-14209","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>L\u2019importance de la ventilation m\u00e9canique - SSREI<\/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:\/\/ssrei.ch\/fr\/limportance-de-la-ventilation-mecanique\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"L\u2019importance de la ventilation m\u00e9canique - SSREI\" \/>\n<meta property=\"og:description\" content=\"Les \u00e9tudes montrent que les b\u00e2timents Minergie g\u00e9n\u00e8rent 3 \u00e0 5 % de revenus locatifs en plus que les b\u00e2timents non certifi\u00e9s. Cela s\u2019explique par des co\u00fbts \u00e9nerg\u00e9tiques plus faibles et un confort de vie sup\u00e9rieur. Les syst\u00e8mes de ventilation y contribuent de mani\u00e8re significative. 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