The use of E-1,1,1,4,4,5,5,5- octa -fluoro-2- pentene and optionally 1,1,1,2,3 pentafluoropropane in the cooling system .

摘要

The present invention, refrigerant composition evaporates and cools the heat transfer medium, cooled heat transfer medium is a method of performing cooling in a cooling apparatus having an evaporator to be conveyed to the main body to be cooled from the evaporator, the methods cooling device is a centrifugal cooling device. The method includes a step of evaporating a composition comprising E-HFO-1438mzz and optionally HFC-245eb as a refrigerant composition with an evaporator. The invention also provides, (1) HFC-245eb and the E-HFO-1438mzz and essentially composed of refrigerant components; (2) a composition comprising a suitable lubricant to the cooling device; refrigerant in to compositions E-HFO-1438mzz is at least 1% by weight. The invention also, the coolant is characterized by including the E-HFO-1438mzz and optionally HFC-245eb, and relates to a centrifugal cooling device containing a refrigerant composition. .