| Titre : | Comparative experimental study of an open piston compressor working with R-1234yf, R-134a and R-290 (2013) |
| Titre original : | Etude expérimentale comparative sur un compresseur à piston ouvert fonctionnant au R-1234yf, au R-134a ou au R-290 |
| Auteurs : | E. Navarro, Auteur ; I. O. Martínez-Galvan, Auteur ; J. Nohales, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | International journal of refrigeration (Vol. 36 N° 3, Mai 2013) |
| Article en page(s) : | pp. 768–775 |
| Note générale : | Refrigeration |
| Langues : | Anglais |
| Tags : | Open compressors ; Refrigerants ; Hydrocarbons ; R1234yf ; Automotive air conditioning |
| Résumé : | Among the different alternatives proposed in the automotive field to replace R-134a and R-1234yf is a new generation fluid which has recently gained great importance for MAC (Mobile Air Conditioning) systems. This fluid has the advantage of having a low GWP (Global Warming potential) and thermodynamic properties similar to R-134a. But there is some criticism regarding the non-natural origin of the fluid and its possible long-term effects on the environment have not been studied. In that sense, hydrocarbons and particularly R-290 can be considered as alternatives. This paper presents a comparative study between R-1234yf, R-134a and R-290 for an open piston compressor at different operating conditions. The text matrix comprised two compressor speeds, evaporation temperatures from −15 °C to 15 °C and condensation temperatures from 40 °C to 65 °C. From these tests, the compressor behavior with these refrigerants has systematically been analyzed in terms of compressor efficiency, volumetric efficiency, losses to the ambient and oil-refrigerant properties. |
| En ligne : | http://www.sciencedirect.com/science/article/pii/S0140700712003258 |
