{"id":3289,"date":"2007-12-30T10:22:08","date_gmt":"2007-12-30T10:22:08","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/12\/30\/stockage-de-lne\/"},"modified":"2012-07-12T10:16:28","modified_gmt":"2012-07-12T10:16:28","slug":"stockage-de-lne","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/12\/30\/stockage-de-lne\/","title":{"rendered":"Stockage adiabatique de l’\u00e9nergie, un probl\u00e8me ardu"},"content":{"rendered":"

\"Generalelectric\"<\/a>                L<\/span>‘intermittence ou l’impr\u00e9visibilit\u00e9 des \u00e9nergies solaires et \u00e9oliennes pose cruellement le probl\u00e8me du stockage de l’\u00e9nergie. La seule r\u00e9elle application industrielle existante est le pompage d’eau vers l’amont, en heures creuses, dans les usines hydro\u00e9lectriques. Le stockage de chaleur par des sels fondus<\/a> fait \u00e9galement l’objet de quelques essais industriels en Espagne dans les centrales solaires thermiques. Le stockage \u00e9lectrochimique est rapidement \u00e9limin\u00e9 par les rendements massiques tr\u00e8s faibles des compos\u00e9s \u00e9lectrochimiquement actifs et la complexit\u00e9 des batteries. Le stockage chimique est peut-\u00eatre une voie possible mais d’une grande complexit\u00e9 industrielle aux rendements peu attrayants<\/a>. Une autre possibilit\u00e9 consisterait \u00e0 stocker de l’air sous tr\u00e8s haute pression dans des cavernes souterraines comme les mines de sel. Mais se pose le probl\u00e8me du rendement, l’air s’\u00e9chauffant durant sa compression, cette chaleur et celle des compresseurs doit \u00eatre r\u00e9cup\u00e9r\u00e9e pour \u00eatre restitu\u00e9e au gaz lors de sa d\u00e9tente. On parle alors de TACAS (Thermal and Compressed Air Storage).<\/p>\n

                      RWE Power et General electric viennent de signer un MOU (Memorandum of Understanding) pour le d\u00e9veloppement et la validation d’une technologie de stockage d’air appel\u00e9e "Advanced Adiabatic Compressed Air Energy Storage" ou AA-CAES. Une \u00e9tude devrait \u00eatre termin\u00e9e en 2008 et une usine de d\u00e9monstration devait \u00eatre op\u00e9rationnelle en 2012. Bien s\u00fbr plus la quantit\u00e9 d’\u00e9nergie stock\u00e9e dans des conditions adiabatiques, c’est \u00e0 dire isol\u00e9es de l’ext\u00e9rieur, sera grande et plus la pression de l’air et la quantit\u00e9 de chaleur stock\u00e9e seront importantes. Afin d’\u00e9viter les pertes entropiques proportionnelles \u00e0 Q\/T il faut donc travailler \u00e0 tr\u00e8s haute temp\u00e9rature (500\u00b0C \u00e0 700\u00b0C ?), avec des compresseurs de longue dur\u00e9e de vie r\u00e9sistant \u00e0 ces temp\u00e9ratures extr\u00eames. Le savoir faire de GE sera le bienvenu dans ce projet passionnant.<\/p>\n","protected":false},"excerpt":{"rendered":"

                L‘intermittence ou l’impr\u00e9visibilit\u00e9 des \u00e9nergies solaires et \u00e9oliennes pose cruellement le probl\u00e8me du stockage de l’\u00e9nergie. La seule r\u00e9elle application industrielle existante est le pompage d’eau vers l’amont, en heures creuses, dans les usines hydro\u00e9lectriques. Le stockage de chaleur par des sels fondus fait \u00e9galement l’objet de quelques essais […]<\/p>\n","protected":false},"author":341,"featured_media":7276,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-eolien"],"yoast_head":"\nStockage adiabatique de l'\u00e9nergie, un probl\u00e8me ardu - leblogenergie.com<\/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:\/\/blogs.thesocialmedia.com\/leblogenergie\/2007\/12\/30\/stockage-de-lne\/\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:title\" content=\"Stockage adiabatique de l'\u00e9nergie, un probl\u00e8me ardu - leblogenergie.com\" \/>\n<meta name=\"twitter:description\" content=\"                L‘intermittence ou l’impr\u00e9visibilit\u00e9 des \u00e9nergies solaires et \u00e9oliennes pose cruellement le probl\u00e8me du stockage de l’\u00e9nergie. 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