{"id":96235,"date":"2026-06-26T09:09:35","date_gmt":"2026-06-26T07:09:35","guid":{"rendered":"https:\/\/www.nexson-group.com\/?p=96235"},"modified":"2026-07-29T11:22:17","modified_gmt":"2026-07-29T09:22:17","slug":"nexson-group-optimisation-de-lefficacite-energetique-offshore-grace-au-systeme-orc-et-a-la-technologie-pshe","status":"publish","type":"post","link":"https:\/\/www.nexson-group.com\/fr\/nexson-group-optimisation-de-lefficacite-energetique-offshore-grace-au-systeme-orc-et-a-la-technologie-pshe\/","title":{"rendered":"Nexson group : optimisation de l’efficacit\u00e9 \u00e9nerg\u00e9tique offshore gr\u00e2ce au syst\u00e8me orc et \u00e0 la technologie pshe"},"content":{"rendered":"\n

Ce projet met en avant la fabrication de trois \u00e9changeurs de chaleur \u00e0 plaques et calandre (PSHE) de grande envergure au sein de notre usine de Beijing. Actuellement en phase finale avant les tests de r\u00e9ception en usine (FAT), ces \u00e9quipements industriels de pointe seront livr\u00e9s \u00e0 la fin du mois de juin ou au d\u00e9but du mois de juillet 2026 sur une importante plateforme offshore.<\/p>\n\n\n\n

Le d\u00e9fi \u00e9nerg\u00e9tique des plateformes offshore<\/strong><\/h3>\n\n\n\n

La centrale \u00e9lectrique constitue le v\u00e9ritable \u00ab c\u0153ur \u00bb d’une plateforme offshore. Traditionnellement, celle-Unis assure l’approvisionnement en \u00e9lectricit\u00e9 en br\u00fblant du p\u00e9trole et du gaz naturel produits directement sur site. Bien que fonctionnel, ce proc\u00e9d\u00e9 historique rejette une quantit\u00e9 massive de gaz de combustion \u00e0 haute temp\u00e9rature dans l’atmosph\u00e8re, repr\u00e9sentant une perte d’\u00e9nergie thermique consid\u00e9rable et une source de pollution thermique.<\/p>\n\n\n\n

L’innovation technologique : Le cycle ORC (Organic Rankine Cycle)<\/strong><\/h3>\n\n\n\n

Pour rem\u00e9dier \u00e0 cette probl\u00e9matique et s’inscrire dans une d\u00e9marche de transition \u00e9nerg\u00e9tique, un syst\u00e8me \u00e0 grande \u00e9chelle de g\u00e9n\u00e9ration d’\u00e9nergie par cycle ORC (Organic Rankine Cycle)<\/strong> est d\u00e9ploy\u00e9 sur la plateforme.<\/p>\n\n\n\n

Ce dispositif innovant utilise les gaz de combustion \u00e0 haute temp\u00e9rature de la centrale comme source de chaleur fatale. Le m\u00e9canisme repose sur un principe d’\u00e9conomie circulaire thermique :<\/p>\n\n\n\n

    \n
  • R\u00e9cup\u00e9ration d’\u00e9nergie :<\/strong> Le syst\u00e8me capte la chaleur r\u00e9siduelle des gaz d’\u00e9chappement de la plateforme.<\/li>\n\n\n\n
  • Changement de phase :<\/strong> Cette \u00e9nergie thermique permet de chauffer un fluide organique \u00e0 bas point d’\u00e9bullition (le cyclopentane).<\/li>\n\n\n\n
  • Production d’\u00e9lectricit\u00e9 verte :<\/strong> Le fluide ainsi chauff\u00e9 g\u00e9n\u00e8re une vapeur \u00e0 haute pression qui entra\u00eene un turbo-expanseur, produisant de l’\u00e9lectricit\u00e9 propre.<\/li>\n<\/ul>\n\n\n\n

    L’int\u00e9gration de cette technologie de rupture permet d’atteindre des gains de performance environnementale et op\u00e9rationnelle majeurs :<\/p>\n\n\n\n

      \n
    • +20 %<\/strong> de capacit\u00e9 d’alimentation \u00e9lectrique pour l’unit\u00e9 globale.<\/li>\n\n\n\n
    • +8 %<\/strong> d’efficacit\u00e9 dans l’utilisation du carburant, optimisant de mani\u00e8re significative l’efficacit\u00e9 \u00e9nerg\u00e9tique globale de l’installation.<\/li>\n\n\n\n
    • Une r\u00e9solution concr\u00e8te du probl\u00e8me de pollution thermique caus\u00e9 par les rejets de gaz d’\u00e9chappement \u00e0 haute temp\u00e9rature.<\/li>\n<\/ul>\n\n\n\n

      La solution Nexson : L’excellence du pr\u00e9chauffage par PSHE<\/strong><\/h3>\n\n\n\n

      Dans ce proc\u00e9d\u00e9 thermique global, plusieurs types d’\u00e9changeurs de chaleur sont n\u00e9cessaires. Si des technologies traditionnelles de type tubes et calandre (Shell & Tube) ont \u00e9t\u00e9 retenues pour les fonctions de condensation et d’\u00e9vaporation, l’entreprise d’ing\u00e9nierie (EPC) responsable du projet a sp\u00e9cifiquement s\u00e9lectionn\u00e9 la technologie Nexson PSHE<\/strong> pour l’\u00e9tape la plus critique : le pr\u00e9chauffage.<\/p>\n\n\n\n

      Pour r\u00e9pondre aux exigences strictes de cette application, Nexson a con\u00e7u et fabriqu\u00e9 trois unit\u00e9s du mod\u00e8le PSW-NNR200H-400<\/strong> en acier inoxydable 316L<\/strong>, d\u00e9veloppant une surface d’\u00e9change thermique de 362,2 m\u00b2 par unit\u00e9<\/strong>.<\/p>\n\n\n\n

      La technologie exclusive Plate and Shell (PSHE) de Nexson s’est impos\u00e9e pour plusieurs raisons cl\u00e9s :<\/p>\n\n\n\n

        \n
      • R\u00e9sistance aux conditions extr\u00eames :<\/strong> Nos unit\u00e9s sont parfaitement configur\u00e9es pour supporter les contraintes s\u00e9v\u00e8res de hautes pressions et de hautes temp\u00e9ratures inh\u00e9rentes \u00e0 ce proc\u00e9d\u00e9.<\/li>\n\n\n\n
      • Compacit\u00e9 et performance :<\/strong> Les plaques soud\u00e9es offrent un coefficient de transfert thermique exceptionnel, maximisant la r\u00e9cup\u00e9ration d’\u00e9nergie dans un espace restreint, un atout indispensable en milieu offshore.<\/li>\n<\/ul>\n\n\n\n

        Perspectives d’avenir<\/strong><\/h3>\n\n\n\n

        Le secteur de l’\u00e9nergie en mer comptant des dizaines de plateformes similaires appel\u00e9es \u00e0 \u00eatre modernis\u00e9es et r\u00e9nov\u00e9es de fa\u00e7on continue, les besoins en optimisation thermique sont immenses. Gr\u00e2ce au succ\u00e8s de ce projet, Nexson Group se positionne comme un partenaire strat\u00e9gique de confiance, capable de fournir \u00e0 long terme des solutions de transfert thermique \u00e9co-efficientes et durables pour l’industrie lourde.ieving this important technological milestone!<\/em><\/p>\n\n\n","protected":false},"excerpt":{"rendered":"

        Ce projet met en avant la fabrication de trois \u00e9changeurs de chaleur \u00e0 plaques et calandre (pshe) de grande envergure au sein de notre usine de beijing. actuellement en phase…<\/p>\n","protected":false},"author":2,"featured_media":96242,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[265],"tags":[],"class_list":["post-96235","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news-fr"],"yoast_head":"\nOptimisation de l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique offshore - pshe<\/title>\n<meta name=\"description\" content=\"Ce projet met en avant la fabrication de trois \u00e9changeurs de chaleur \u00e0 plaques et calandre (PSHE) de grande envergure...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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