Heat transfer compositions, methods, and systems
AssigneeHoneywell International Inc.
InventorsSamuel F. Yana Motta, Ankit Sethi, Yang Zou
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Abstract
The present invention relates to a refrigerant composition, including difluoromethane (HFC-32), pentafluoroethane (HFC-125), and trifluoroiodomethane (CF3I) for use in a heat exchange system, including air conditioning and refrigeration applications and in particular aspects to the use of such compositions as a replacement of the refrigerant R-410A for heating and cooling applications and to retrofitting heat exchange systems, including systems designed for use with R-410A.
Claims20
A refrigerant comprising at least about 97% by weight of the following three compounds, with each compound being present in the following relative percentages:
- 39 to 45% by weight difluoromethane (HFC-32),
- 1 to 4% by weight pentafluoroethane (HFC-125), and
- 51 to 57% by weight trifluoroiodomethane (CF3I).
Dependencies are inferred from the claim text.