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Hybrid vapor compression refrigeration system with an integrated ejector cooling cycle / Yinhai Zhu in International journal of refrigeration, Vol. 35 N° 1 (Janvier 2012) 

Public ISBD [article]  in International journal of refrigeration > Vol. 35 N° 1 (Janvier 2012) . - pp. 68–78 Titre : Hybrid vapor compression refrigeration system with an integrated ejector cooling cycle Titre original : Système frigorifique à compression de vapeur à cycle de refroidissement à éjecteur intégré Type de document : texte imprimé Auteurs : Yinhai Zhu, Auteur ; Peixue Jiang, Auteur Année de publication : 2012 Article en page(s) : pp. 68–78 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Ejector  Refrigeration  Compression  system  Design  Performance Résumé : A refrigeration system was developed which combines a basic vapor compression refrigeration cycle with an ejector cooling cycle. The ejector cooling cycle is driven by the waste heat from the condenser in the vapor compression refrigeration cycle. The additional cooling capacity from the ejector cycle is directly input into the evaporator of the vapor compression refrigeration cycle. The governing equations are derived based on energy and mass conservation in each component including the compressor, ejector, generator, booster and heat exchangers. The system performance is first analyzed for the on-design conditions. The results show that the COP is improved by 9.1% for R22 system. The system is then compared with a basic refrigeration system for variations of five important variables. The system analysis shows that this refrigeration system can effectively improve the COP by the ejector cycle with the refrigerant which has high compressor discharge temperature. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002192 [article] Hybrid vapor compression refrigeration system with an integrated ejector cooling cycle = Système frigorifique à compression de vapeur à cycle de refroidissement à éjecteur intégré [texte imprimé] / Yinhai Zhu, Auteur ; Peixue Jiang, Auteur . - 2012 . - pp. 68–78. Génie mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 35 N° 1 (Janvier 2012) . - pp. 68–78 Mots-clés : Ejector  Refrigeration  Compression  system  Design  Performance Résumé : A refrigeration system was developed which combines a basic vapor compression refrigeration cycle with an ejector cooling cycle. The ejector cooling cycle is driven by the waste heat from the condenser in the vapor compression refrigeration cycle. The additional cooling capacity from the ejector cycle is directly input into the evaporator of the vapor compression refrigeration cycle. The governing equations are derived based on energy and mass conservation in each component including the compressor, ejector, generator, booster and heat exchangers. The system performance is first analyzed for the on-design conditions. The results show that the COP is improved by 9.1% for R22 system. The system is then compared with a basic refrigeration system for variations of five important variables. The system analysis shows that this refrigeration system can effectively improve the COP by the ejector cycle with the refrigerant which has high compressor discharge temperature. ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700711002192