Abstract

Refrigerant system is broadly applied in several areas currently. Their importances we can’t deny. However, beside it’s convenience, there are a lot of problems appearing impact on our living environment such as: Ozon depletion, global warming that create a lot of disaster for our life. To contribute for solving those problems, we researched theories, also to conduct experiments for R22, R12 replacement by using friendly environment refrigerant as: R404A, R290, R600A. Our research purpose comparing different refrigerants to find out the one that has compatible thermodynamic property to apply in Viet nam’s condition. Among those, the refrigerant that we can produce ourselves is R290 having same thermodynamic property with R22, R12, and also achieve a good result for R22, R12 replacement.