{"id":1038,"date":"2009-03-13T10:15:33","date_gmt":"2009-03-13T10:15:33","guid":{"rendered":"http:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/03\/13\/une-turbine-gaz\/"},"modified":"2012-07-12T11:26:45","modified_gmt":"2012-07-12T11:26:45","slug":"une-turbine-gaz","status":"publish","type":"post","link":"https:\/\/blogs.thesocialmedia.com\/leblogenergie\/2009\/03\/13\/une-turbine-gaz\/","title":{"rendered":"Une turbine \u00e0 gaz \u00e0 cycle combin\u00e9 pr\u00e9sentant un rendement \u00e9nerg\u00e9tique sup\u00e9rieur \u00e0 60%"},"content":{"rendered":"

\"Turbinegaz\"<\/a>                     L<\/span><\/strong>e gaz naturel va devenir dans la d\u00e9cennie qui vient la premi\u00e8re source d’\u00e9nergie primaire dans le monde, devant le p\u00e9trole. En effet la d\u00e9croissance de consommation de p\u00e9trole dans les transports et la croissance de l’utilisation du gaz coupl\u00e9e avec les \u00e9nergies renouvelables et bas\u00e9e sur de larges r\u00e9serves, vont rapidement faire passer le p\u00e9trole en deuxi\u00e8me position des ressources primaires d’\u00e9nergie. Le march\u00e9 des turbines \u00e0 gaz de g\u00e9n\u00e9ration d’\u00e9lectricit\u00e9 est donc un axe strat\u00e9gique important pour les grands constructeurs de centrales \u00e9lectriques. Siemens par exemple se base sur une croissance annuelle du march\u00e9 des centrales \u00e0 gaz de 8% par an pour son plan 2008-2013. La recherche d’une meilleure efficacit\u00e9 \u00e9nerg\u00e9tique de ces ensembles constitue un point cl\u00e9 pour pr\u00e9senter un avantage concurrentiel d\u00e9terminant. C’est pour cela que Mitsubishi Heavy Industries (MHI) annonce une nouvelle g\u00e9n\u00e9ration de turbines \u00e0 gaz aux performances accrues.<\/p>\n

                     Le point cl\u00e9 du rendement des centrales \u00e0 gaz \u00e0 cycle combin\u00e9 (GTCC) qui utilisent \u00e0 la fois l’\u00e9nergie de la turbine \u00e0 gaz et de g\u00e9n\u00e9rateurs \u00e0 vapeur aliment\u00e9s par les gaz de la turbine est la temp\u00e9rature du gaz \u00e0 l’entr\u00e9e de la turbine. MHI annonce qu’il va porter cette temp\u00e9rature de 1500\u00b0C sur ses turbines actuelles les plus modernes \u00e0 1600\u00b0C. Ce progr\u00e8s s’inscrit dans le cadre d’un objectif national japonais d’atteindre 1700\u00b0C. Ces progr\u00e8s reposent sur la mise au point de rev\u00eatements de faible conductivit\u00e9 thermique, de dispositifs de refroidissement am\u00e9lior\u00e9s et d’un meilleur a\u00e9rodynamisme de la turbine. \"Gtccsiemens\"<\/a> <\/p>\n

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                       MHI annonce qu’il va commercialiser \u00e0 partir de 2011 une turbine de 320MW qui dans une configuration GTCC permettra de d\u00e9finir un ensemble qui g\u00e9n\u00e8rera 460MW de puissance \u00e9lectrique<\/u> ce qui en fera un des plus puissants du moment, le rendement \u00e9nerg\u00e9tique de l’ensemble sera sup\u00e9rieur \u00e0 60%. Les \u00e9missions de CO2 seront alors de l’ordre de 340kg par MWh.<\/p>\n

                      Il est probable que GE, Siemens ou autres Alstom poss\u00e8dent ce genre de solutions (Siemens 530MW) ou travaillent sur des projets similaires.<\/p>\n

                      Cela veut dire que coupl\u00e9es avec des sources d’\u00e9nergies renouvelables, moins on\u00e9reuses que celles utilis\u00e9es jusque l\u00e0, il est possible de d\u00e9finir des ensembles compl\u00e9mentaires \u00e9nergies renouvelable-GTCC qui assureront une fourniture constante d’\u00e9nergie avec moins de 250 kg de CO2 par MWh, soit 4 \u00e0 5 fois moins que les nombreuses centrales au charbon les plus polluantes d’Europe.<\/p>\n

Le 13 Mars 2009.<\/p>\n

–<\/p>\n","protected":false},"excerpt":{"rendered":"

                     Le gaz naturel va devenir dans la d\u00e9cennie qui vient la premi\u00e8re source d’\u00e9nergie primaire dans le monde, devant le p\u00e9trole. 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