Methods of replacing heat transfer fluids

摘要

Various uses of tetrafluoropropenes, particularly (HFO-1234) in a variety of applications, including refrigeration equipment, are disclosed. These materials are generally useful as refrigerants for heating and cooling, as blowing agents, as aerosol propellants, as solvent composition, and as fire extinguishing and suppressing agents.

主权项

1. A method of replacing an existing heat transfer fluid contained in an existing heat transfer system comprising replacing at least a portion of said existing heat transfer fluid with a heat transfer composition comprising HFO-1234yf, wherein said existing heat transfer fluid comprises HFC-134a.