Heat transfer methods, systems and compositions
First Claim
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1. A refrigerant blend consisting of:
- about 50% by weight difluoromethane (HFC-32),about 11.5% by weight pentafluoroethane (HFC-125), andabout 38.5% by weight trifluoroiodomethane (CF3I),wherein the percentages are based on the total weight of the three compounds in the blend.
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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.
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Citations
17 Claims
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1. A refrigerant blend consisting of:
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about 50% by weight difluoromethane (HFC-32), about 11.5% by weight pentafluoroethane (HFC-125), and about 38.5% by weight trifluoroiodomethane (CF3I), wherein the percentages are based on the total weight of the three compounds in the blend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification