Heat transfer methods using heat transfer compositions containing trans-1,3,3,3-tetrafluoropropene

  • US 8,444,874 B2
  • Filed: 09/04/2007
  • Issued: 05/21/2013
  • Est. Priority Date: 10/25/2002
  • Status: Active Grant
First Claim
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1. A method of transferring heat to or from a body in a vapor compression system comprising:

  • (a) providing in at least a portion of said system a heat transfer composition comprising at least about 5% by weight of trans-1,3,3,3-tetrafluoropropene and lubricant comprising polyol ester; and

    (b) causing heat to be transferred to or from trans-1,3,3,3-tetrafluoropropene and into or from said body by heat transfer contact between said trans-1,3,3,3-tetrafluoropropene and the body.

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