| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an alternative refrigerant having characteristics excellent in general versatility, that is, a mixed refrigerant composed of tetrafluoropropene and an HFC refrigerant which is usable in an appliance having a pressure withstanding strength equal to that of air conditioning and refrigerating-freezing equipment using R410A and R404A while suppressing GWP (Global Warming Potential) low to suppress global warning, and to provide a refrigerating cycle device that can secure a heat source for defrosting by using an ejection gas caused by the lowering of an ejection temperature being a problem in the mixed refrigerant. <P>SOLUTION: The mixed refrigerant includes HFO-1234yf and R32, a mass ratio of R32 is 20 mass% or more and the refrigerating cycle device uses the mixed refrigerant. <P>COPYRIGHT: (C)2013,JPO&INPIT |
