Compositions – Vaporization – or expansion – refrigeration or heat or energy...
Patent
1983-09-14
1984-08-28
Kittle, John E.
Compositions
Vaporization, or expansion, refrigeration or heat or energy...
62116, 62118, C09K 504
Patent
active
044683375
ABSTRACT:
Buildings are advantageously heated or heat-conditioned with a heat pump operated with a non-azeotropic mixture of two working fluids. The mixture comprises 99 to 70% by mole of dichlorodifluoromethane (R 12), monochlorodifluoromethane (R 22) or one of the halohydrocarbon azeotropes R 500, R 501 or R 502 with 1 to 30% by mole of trifluoromethane (R 23) or the halohydrocarbon azeotrope R 503.
REFERENCES:
patent: 3300996 (1967-01-01), Atwood
patent: 3851494 (1974-12-01), Hess
Geller et al., "Thermodynamic Properties of a Mixture of Freon 12 and 23", Kholod. Tekh. 1973, (6), 46-47.
Kazachki, "Critical Pressures and Temperatures of Some Nonazeotropic Mixtures", Sci. Tech. Froid. 1980, (1), 45-48.
Chaikovskii et al., "Experimental Investigation of Two-Step Refrigeration with a Mixture of Freons 12 and 23", Kholod. Tekh. 1972, (No. 4), p. 7.
Ramet Claude
Rojey Alexandre
Institut Francais du Pe'trole
Kittle John E.
Wax Robert A.
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