Use of compositions comprising 1,1,1,2,3-pentafluoropropane and optionally Z-1,1,1,4,4,4-hexafluoro-2-butene in chillers

摘要

A method is provided for producing cooling in a chiller having an evaporator wherein a refrigerant composition is evaporated to cool a heat transfer medium. The method comprises evaporating a refrigerant composition comprising HFC-245eb and optionally Z-HFO-1336mzz in the evaporator. Additionally, a composition is provided comprising: (1) a refrigerant composition consisting essentially of HFC-245eb and Z-HFO-1336mzz; (2) a lubricant suitable for use in a chiller; wherein the Z-HFO-1336mzz in the refrigerant composition is at least about 41 weight percent. Also, a chiller apparatus is provided comprising an evaporator, a compressor, a condenser and a pressure reduction device, all of which are in fluid communication in the order listed and through which a refrigerant flows from one component to the next in a repeating cycle.