The use of E-1,1,1,4,4,5,5,5- octa -fluoro-2- pentene and optionally 1,1,1,2,3 pentafluoropropane at high temperature heat pump

摘要

The present invention relates to a method of performing heating at high temperature heat pump. The method, the E-HFO-1438mzz and optionally vapor working fluid comprising a HFC-245eb, is condensed in a condenser, comprising the step of thereby producing a liquid working fluid. The present invention also, I also relates to a method of increasing the maximum feasible condenser operating temperature in the high temperature heat pump equipment. The method includes the step of loading the hydraulic fluid containing E-HFO-1438mzz and optionally HFC-245e to a high temperature heat pump. The invention also I also relates to a high temperature heat pump apparatus containing a working fluid containing E-HFO-1438mzz and optionally HFC-245eb. The invention also, (i) and E-HFO-1438mzz and HFC-245eb; (ii) 55 ? or more stabilizers to prevent decomposition at temperatures suitable lubrication for use in (iii) 55 ? or higher oil, or (ii) and I relates to compositions containing both a (iii)