{"id":16757,"date":"2021-12-21T15:42:00","date_gmt":"2021-12-21T14:42:00","guid":{"rendered":"https:\/\/enaw.ch\/?p=16757"},"modified":"2026-02-02T16:03:58","modified_gmt":"2026-02-02T15:03:58","slug":"une-pompe-entre-donnees-et-fromage","status":"publish","type":"post","link":"https:\/\/enaw.ch\/fr\/une-pompe-entre-donnees-et-fromage","title":{"rendered":"Une pompe entre donn\u00e9es et fromage"},"content":{"rendered":"\n
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Comment les 300 racks de serveurs d’un data center peuvent-ils \u00eatre, tous ensemble, indispensables au fonctionnement d’une fromagerie de montagne ?
Cherchez la pompe \u00e0 chaleur de nouvelle g\u00e9n\u00e9ration, capable de hautes temp\u00e9ratures in\u00e9dites !<\/p>\n\n\n\n

La fromagerie de montagne de Gais, dans le canton d’Appenzell, r\u00e9ceptionne chaque ann\u00e9e 15 millions de litres de lait livr\u00e9s par une soixantaine d’\u00e9leveurs. Le lait est transform\u00e9 en fromage : demi-dur, de montagne, \u00e0 raclette\u2026 Les besoins de chaleur pour cette production sont tout aussi vari\u00e9s. La chaleur demand\u00e9e va de 42 \u00b0C pour le pr\u00e9chauffage de l’eau de lavage et pour la ventilation, \u00e0 105 \u00b0C pour la pasteurisation, en passant par 65 \u00b0C pour l’eau chaude et le chauffage des locaux et 92 \u00b0C pour les cuves \u00e0 fromage et leur lavage.<\/p>\n\n\n\n

Pr\u00e9c\u00e9demment assur\u00e9e avec du gaz naturel, cette chaleur est d\u00e9sormais fournie \u00e0 la fromagerie par le centre de donn\u00e9es de Suisse orientale flambant neuf, g\u00e9r\u00e9 conjointement par les services industriels de Saint-Gall et d’Appenzell d’une part et ceux de la ville de Saint-Gall d’autre part. Install\u00e9 \u00e0 une altitude de 919 m\u00e8tres, le centre de donn\u00e9es exploite au maximum la fra\u00eecheur naturelle, tout en injectant sa chaleur exc\u00e9dentaire, dont la temp\u00e9rature est comprise entre 16 et 20 \u00b0C, dans un r\u00e9seau de chauffage \u00e0 distance. Ce r\u00e9seau alimente la fromagerie ainsi que 150 habitations.<\/p>\n\n\n

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\"pompe<\/figure>\n<\/div>\n\n\n


En 2020, la fromagerie a mis en service une pompe \u00e0 chaleur haute temp\u00e9rature du fabricant Ochsner Energie Technik S\u00e0rl. Un \u00ab monstre \u00bb de 4 tonnes, d’une puissance de 520 kW. Cette pompe utilise 130 kilos du frigorig\u00e8ne R1234ze, une hydrofluorol\u00e9fine (HFO) dont le potentiel de r\u00e9chauffement global est faible. La chaleur que la pompe extrait de l’eau du r\u00e9seau chauffe l’eau de la fromagerie jusqu’\u00e0 des temp\u00e9ratures inatteignables encore r\u00e9cemment. L’eau de la fromagerie est ensuite amen\u00e9e dans un r\u00e9servoir stratifi\u00e9, o\u00f9 elle est disponible \u00e0 diff\u00e9rentes temp\u00e9ratures, jusqu’\u00e0 ces 105 \u00b0C qui illustrent les nouveaux horizons qui s’ouvrent aujourd’hui dans le champ des \u00e9changes thermiques. L’eau retourne ensuite dans le r\u00e9seau de chauffage \u00e0 distance \u00e0 une temp\u00e9rature de 14 \u00b0C.<\/p>\n\n\n\n

Gr\u00e2ce \u00e0 cet \u00e9change thermique, la fromagerie r\u00e9alise une \u00e9conomie de gaz naturel tr\u00e8s importante, qui \u00e9quivaut \u00e0 1,5 million de kWh. La r\u00e9duction des \u00e9missions de CO2<\/sub> obtenue gr\u00e2ce \u00e0 ce mariage de la tradition fromag\u00e8re et de la modernit\u00e9 num\u00e9rique est \u00e0 la hauteur de ces \u00e9conomies.<\/p>\n\n\n\n

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Comment les 300 racks de serveurs d’un data center peuvent-ils \u00eatre, tous ensemble, indispensables au fonctionnement d’une fromagerie de montagne ?Cherchez la pompe \u00e0 chaleur de nouvelle g\u00e9n\u00e9ration, capable de hautes temp\u00e9ratures in\u00e9dites ! La fromagerie de montagne de Gais, dans le canton d’Appenzell, r\u00e9ceptionne chaque ann\u00e9e 15 millions de litres de lait livr\u00e9s par une soixantaine d’\u00e9leveurs. […]<\/p>\n","protected":false},"author":14,"featured_media":16771,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[3],"tags":[415,413,412,414],"kanton":[118],"thema":[209],"produkt":[222],"rubrik":[308],"branche":[404,264,275],"class_list":["post-16757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","tag-datacenter","tag-fromage","tag-gais","tag-pompe-a-chaleur","kanton-appenzell-rhodes-exterieures","thema-recuperation-de-chaleur","produkt-modele-energie","rubrik-exemples-de-realisations","branche-chauffage-a-distance","branche-electronique","branche-production-de-denrees-alimentaires"],"acf":[],"yoast_head":"\nUne pompe entre donn\u00e9es et fromage | Agence de l\u2019\u00e9nergie pour l\u2019\u00e9conomie<\/title>\n<meta name=\"description\" content=\"Comment les 300 racks de serveurs d'un data center peuvent-ils \u00eatre, tous ensemble, indispensables au fonctionnement d'une fromagerie de montagne\u00a0?Cherchez la pompe \u00e0 chaleur de nouvelle g\u00e9n\u00e9ration, capable de hautes temp\u00e9ratures in\u00e9dites\u00a0!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/enaw.ch\/fr\/une-pompe-entre-donnees-et-fromage\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Une pompe entre donn\u00e9es et fromage\" \/>\n<meta property=\"og:description\" content=\"Seit 2001 setzen wir gemeinsam mit den Unternehmen auf wirtschaftlichen Klimaschutz. Wir bieten individuelle L\u00f6sungen, um die Energie- und Ressourceneffizienz kontinuierlich zu steigern. Unsere 126 EnAW-Beraterinnen und EnAW-Berater kennen sich in allen Branchen und Wirtschaftszweigen aus und begleiten auch Ihr Unternehmen kompetent auf dem Weg zu weniger CO2, tieferen Kosten und mehr Energie- und Ressourceneffizienz.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/enaw.ch\/fr\/une-pompe-entre-donnees-et-fromage\" \/>\n<meta property=\"og:site_name\" content=\"Agence de l\u2019\u00e9nergie pour l\u2019\u00e9conomie\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/enaw.aenec\" \/>\n<meta property=\"article:published_time\" content=\"2021-12-21T14:42:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-02-02T15:03:58+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/enaw.ch\/wp-content\/uploads\/2021\/12\/pompe-a-chaleur-Gais-small.png\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Marion B\u00e9lisle\" \/>\n<meta name=\"twitter:card\" 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