Dynamic simulation of reciprocating refrigeration compressors and experimental validation / Jean Castaing-Lasvignottes in International journal of refrigeration, Vol. 33 N° 2 (Mars 2010)  

Public ISBD [article]  inInternational journal of refrigeration > Vol. 33 N° 2 (Mars 2010) . - pp. 381-389 Titre : Dynamic simulation of reciprocating refrigeration compressors and experimental validation Titre original : Simulation dynamique des compresseurs frigorifiques à piston et validation expérimentale Type de document : texte imprimé Auteurs : Jean Castaing-Lasvignottes, Auteur ; Stéphane Gibout, Auteur Année de publication : 2011 Article en page(s) : pp. 381-389 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Sorption Compression system Modelling Simulation Volumetric efficiency Efficiency Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Among the various ways to simulate compressor behaviour, using efficiency definitions such as volumetric, isentropic or effective is relatively easy to perform and rapid when dynamic simulation is required. Calculating these efficiencies and their dependence on operating pressure, refrigerant type, and temperature is on the contrary relatively difficult to estimate. The approach presented here supposes that they depend essentially on two parameters, the dead volume ratio, having a particular influence on volumetric efficiency, and a friction factor mainly influencing both isentropic and effective efficiencies. The bases of the model are tested for a reversible and for a non-reversible reciprocating compressor when simulated over a compression cycle and dead volume ratio and friction factor influence is studied and discussed. Finally, the model is compared to experiments and allows validating the method, giving quite accurate results. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700709002412 [article] Dynamic simulation of reciprocating refrigeration compressors and experimental validation = Simulation dynamique des compresseurs frigorifiques à piston et validation expérimentale [texte imprimé] / Jean Castaing-Lasvignottes, Auteur ; Stéphane Gibout, Auteur . - 2011 . - pp. 381-389. Génie Mécanique Langues : Anglais (eng) in International journal of refrigeration > Vol. 33 N° 2 (Mars 2010) . - pp. 381-389 Mots-clés : Sorption Compression system Modelling Simulation Volumetric efficiency Efficiency Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : Among the various ways to simulate compressor behaviour, using efficiency definitions such as volumetric, isentropic or effective is relatively easy to perform and rapid when dynamic simulation is required. Calculating these efficiencies and their dependence on operating pressure, refrigerant type, and temperature is on the contrary relatively difficult to estimate. The approach presented here supposes that they depend essentially on two parameters, the dead volume ratio, having a particular influence on volumetric efficiency, and a friction factor mainly influencing both isentropic and effective efficiencies. The bases of the model are tested for a reversible and for a non-reversible reciprocating compressor when simulated over a compression cycle and dead volume ratio and friction factor influence is studied and discussed. Finally, the model is compared to experiments and allows validating the method, giving quite accurate results. DEWEY : 621.5 ISSN : 0140-7007 En ligne : http://www.sciencedirect.com/science/article/pii/S0140700709002412

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