FIELD: chemistry.
SUBSTANCE: invention relates to a mixture of hydrofluorocarbon (HFC) refrigerants for use in a heat pump, as well as for air conditioning and other heat pump systems. Refrigerant composition consists mainly of: 227ea - 3-6%, R134a – 42.5-65.0%, R125 - 15-30%, R32 - 10-20% together with an optional hydrocarbon component, for example, n-butane, 2-methylpropane, 2-methylbutane, propane, propene, 2-methylpropene, n-pentane and mixtures thereof, and wherein the amounts are given by weight and selected in such a way that the total is 100%.
EFFECT: multicomponent liquid refrigerants have a lower global warming potential without creating an ignition hazard, are compatible with existing lubricants.
7 cl, 10 tbl, 8 ex
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