{"id":33667,"date":"2024-01-08T12:36:23","date_gmt":"2024-01-08T17:36:23","guid":{"rendered":"https:\/\/cna.ca\/?page_id=33667"},"modified":"2024-01-08T12:36:24","modified_gmt":"2024-01-08T17:36:24","slug":"reseaux-thermiques","status":"publish","type":"page","link":"https:\/\/cna.ca\/fr\/reseaux-thermiques\/","title":{"rendered":"R\u00e9seaux&nbsp;thermiques"},"content":{"rendered":"\n<p>L\u2019\u00e9nergie destin\u00e9e au chauffage des b\u00e2timents (locaux et eau chaude \u00e0 usage domestique) repr\u00e9sente 15&nbsp;% de la consommation mondiale d\u2019\u00e9nergie, alors que les besoins totaux en chaleur sont deux fois plus \u00e9lev\u00e9s, notamment \u00e0 des fins industrielles. Elle est fournie principalement \u00e0 partir de sources non renouvelables&nbsp;: gaz naturel, p\u00e9trole, charbon et d\u00e9chets. Les r\u00e9seaux thermiques issus de l\u2019\u00e9nergie nucl\u00e9aire offrent une solution permettant de r\u00e9duire les \u00e9missions de carbone puisqu\u2019ils assurent le chauffage des locaux et de l\u2019eau pour un groupe ou un quartier de b\u00e2timents depuis une source de chauffage centralis\u00e9e de grande taille.<\/p>\n\n\n\n<p>Toutes les centrales nucl\u00e9aires ont pour processus principal de convertir l\u2019\u00e9nergie nucl\u00e9aire en chaleur dans le c\u0153ur du r\u00e9acteur. Ce potentiel a \u00e9t\u00e9 d\u00e9montr\u00e9 de mani\u00e8re concluante dans plusieurs pays (principalement en Europe de l\u2019Est et en Russie) et est toujours utilis\u00e9, bien que dans une moindre mesure. Il existe donc au Canada un potentiel consid\u00e9rable d\u2019exploitation de la chaleur issue des proc\u00e9d\u00e9s nucl\u00e9aires \u00e0 des fins de r\u00e9seaux thermiques industriels et urbains. La plupart des r\u00e9seaux thermiques existants et prospectifs utilisent l\u2019eau chaude comme vecteur \u00e9nerg\u00e9tique. Les temp\u00e9ratures d\u2019approvisionnement typiques des r\u00e9seaux de chauffage centralis\u00e9s se situent entre 80 et 130&nbsp;<sup>\u25e6<\/sup>C, les valeurs exactes d\u00e9pendant de la conception du syst\u00e8me en question et des conditions m\u00e9t\u00e9orologiques du moment. Il est facile de produire de l\u2019eau \u00e0 de telles temp\u00e9ratures dans une centrale nucl\u00e9aire \u00e0 cycle de vapeur, o\u00f9 la temp\u00e9rature de la vapeur vive est d\u2019environ 280-300&nbsp;\u25e6C.<\/p>\n\n\n\n<p>La mise au point de petits r\u00e9acteurs modulaires (PRM) rend les installations de production combin\u00e9e de chaleur et d\u2019\u00e9lectricit\u00e9 encore plus attrayantes. Ces mod\u00e8les int\u00e8grent des dispositifs de s\u00e9curit\u00e9 am\u00e9lior\u00e9s, n\u00e9cessitent des investissements moins importants, pr\u00e9sentent moins de risques financiers et peuvent \u00eatre plus faciles \u00e0 installer \u00e0 proximit\u00e9 des utilisateurs finaux. Les mod\u00e8les avanc\u00e9s de PRM con\u00e7us au Canada pour la client\u00e8le nationale et export\u00e9s vers les march\u00e9s mondiaux comprennent des applications \u00e0 basse temp\u00e9rature qui extraient la \u00ab&nbsp;chaleur r\u00e9siduelle&nbsp;\u00bb de la partie arri\u00e8re de la turbine \u00e0 environ 200&nbsp;\u00b0C. L\u2019application \u00e0 basse temp\u00e9rature (&gt;300&nbsp;\u00b0C) que les d\u00e9veloppeurs de PRM citent le plus souvent est celle des r\u00e9seaux thermiques, qui implique de la vapeur &gt;200&nbsp;\u00b0C provenant du r\u00e9acteur ou de la chaleur r\u00e9siduelle de la turbine livr\u00e9e \u00e0 des utilisateurs industriels et r\u00e9sidentiels.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019\u00e9nergie destin\u00e9e au chauffage des b\u00e2timents (locaux et eau chaude \u00e0 usage domestique) repr\u00e9sente 15&nbsp;% de la consommation mondiale d\u2019\u00e9nergie, alors que les besoins totaux en chaleur sont deux fois plus \u00e9lev\u00e9s, notamment \u00e0 des fins industrielles. Elle est fournie principalement \u00e0 partir de sources non renouvelables&nbsp;: gaz naturel, p\u00e9trole, charbon et d\u00e9chets. Les r\u00e9seaux [&hellip;]<\/p>\n","protected":false},"author":8481,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"topic":[],"class_list":["post-33667","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>R\u00e9seaux thermiques - Association nucl\u00e9aire canadienne<\/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:\/\/cna.ca\/fr\/reseaux-thermiques\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9seaux thermiques - Association nucl\u00e9aire canadienne\" \/>\n<meta property=\"og:description\" content=\"L\u2019\u00e9nergie destin\u00e9e au chauffage des b\u00e2timents (locaux et eau chaude \u00e0 usage domestique) repr\u00e9sente 15&nbsp;% de la consommation mondiale d\u2019\u00e9nergie, alors que les besoins totaux en chaleur sont deux fois plus \u00e9lev\u00e9s, notamment \u00e0 des fins industrielles. Elle est fournie principalement \u00e0 partir de sources non renouvelables&nbsp;: gaz naturel, p\u00e9trole, charbon et d\u00e9chets. 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