The Development of Mathematical Model Using for Determined the Properties of Refrigerant Mixture.

Abstract

Blends of R22/R152a/R124 have been proposed to replace R12 in refrigeration systems.In this research work, a technique to simply evaluate thermodynamic properties of refrigerant mixtures has been developed from Raoult's Law.the method has been approached to evaluate the properties of the refrigerant blends avalable in the market such as MP39( R22/R152/R124 53/13/34),MP52 (R22/R152a/R124 33/15/52)and MP66 (R22/R152/R124 61/11/28) .The results agree well with those given by the manufacture within 5 % error The method has also been used to evaluate the properties of the ( R32/R125/R134a 23/25/52)refrigerant agree wall with those given from the manufacture with in 3 % error The thermodynamic property dlagrams of these refrigerant blends are also proposed.