Constant boiling compositions of HFC-32, HFC-125 and HFC-134 A

Details Constant boiling compositions of HFC-32, HFC-125 and HFC-134 A Constant boiling compositions of HFC-32, HFC-125 and HFC-134 A

1995-02-22

1997-07-01

Skane, Christine

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

510410, 62114, C09K 504

Patent

active

056434928

ABSTRACT:
Ternary mixtures of pentafluoroethane, difluoromethane and tetrafluoroethane are useful as refrigerants, aerosol propellants, heat transfer media, gaseous dielectrics, fire extinguishing agents, expansion agents for polyolefins and polyurethanes, and as power cycle working fluids.

REFERENCES:
patent: 4174295 (1979-11-01), Bargigia et al.
patent: 4810403 (1989-03-01), Bivens et al.
patent: 4971712 (1990-11-01), Gorski et al.
patent: 5185094 (1993-02-01), Shiflett
patent: 5370811 (1994-12-01), Yoshida et al.
McLinden & Didion's article "Quest for Alternatives" (ASHRAE Journal, Dec. '87).
Vinyard, Sand & Statt's article "Selection of Ozone-Safe, Nonazeotropic Refrigerant Mixtures for Capacity Modulation in Residential Heat Pumps" (ASHRAE Transactions 1989, vol. 95, Part 1) no month available.
Extract fr.OakRidge Nat.Lab. "Environmental, Health, and CFC Substitution Aspects of the Ozone Depletion Issue", Apr. 1989.

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