Low-temperature and average-temperature refrigeration
AssigneeArkema France
InventorWissam Rached
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Abstract
The invention relates to binary compositions of 2,3,3,3-tetrafluoropropene and difluoromethane, as a heat transfer fluid in compression, low-temperature and average temperature refrigeration systems, with exchangers operating in counterflow mode or in split flow mode with counterflow tendency. The invention also relates to a heat transfer method.
Claims8
A method of replacing R-404A in a compression-type low- and medium-temperature refrigeration system, with exchangers operating in countercurrent mode or in crossed-current mode with countercurrent tendency, the method comprising replacing R-404A or R-407C with a composition comprising a refrigerant, the refrigerant consisting of from 61 to 85 wt. % of 2,3,3,3-tetrafluoropropene and from 15 to 39 wt. % difluoromethane.
Dependencies are inferred from the claim text.