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Characterization of a vapor injection scroll compressor as a function of low, intermediate and high pressures and temperature conditions / E. Navarro in International journal of refrigeration, Vol. 36 N° 7 (Novembre 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1821–1829 Titre : Characterization of a vapor injection scroll compressor as a function of low, intermediate and high pressures and temperature conditions Titre original : Caractérisation d'un compresseur à spirale à injection de vapeur en fonction des conditions de pressions et de températures basses, moyennes et élevées Type de document : texte imprimé Auteurs : E. Navarro, Auteur ; A. Redón, Auteur ; José Gonzálvez-Maciá, Auteur Année de publication : 2014 Article en page(s) : pp. 1821–1829 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Compressor;  Injection  cycle;  Economizer;  Extreme  conditions;  Heat  pumps Résumé : The interest in two stage cycles has increased in the last years and some compressor manufacturers have commercialized compressors adapted to work in these conditions. Nevertheless, the information supplied by them usually is limited to certain design conditions defined by the application and extrapolation to other conditions is not straightforward. In this article a test campaign of an injection scroll compressor is presented. This test campaign was divided in two parts, on the first one a wide range of evaporating and condensing pressures for the intermediate conditions recommended by the manufacturer were measured, and the compressor behavior was systematically compared with single stage compressor of the same volume. On the second part an experimental study of the influence of the intermediate conditions on the performance have been done. The study has included the evaluation of the separate influence of intermediate gas superheat, intermediate pressure and wet injection. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713001175 [article] Characterization of a vapor injection scroll compressor as a function of low, intermediate and high pressures and temperature conditions = Caractérisation d'un compresseur à spirale à injection de vapeur en fonction des conditions de pressions et de températures basses, moyennes et élevées [texte imprimé] / E. Navarro, Auteur ; A. Redón, Auteur ; José Gonzálvez-Maciá, Auteur . - 2014 . - pp. 1821–1829. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 7 (Novembre 2013) . - pp. 1821–1829 Mots-clés : Compressor;  Injection  cycle;  Economizer;  Extreme  conditions;  Heat  pumps Résumé : The interest in two stage cycles has increased in the last years and some compressor manufacturers have commercialized compressors adapted to work in these conditions. Nevertheless, the information supplied by them usually is limited to certain design conditions defined by the application and extrapolation to other conditions is not straightforward. In this article a test campaign of an injection scroll compressor is presented. This test campaign was divided in two parts, on the first one a wide range of evaporating and condensing pressures for the intermediate conditions recommended by the manufacturer were measured, and the compressor behavior was systematically compared with single stage compressor of the same volume. On the second part an experimental study of the influence of the intermediate conditions on the performance have been done. The study has included the evaluation of the separate influence of intermediate gas superheat, intermediate pressure and wet injection. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700713001175