Selection of ozone-safe refrigerants for heat pumps

Criteria are described for selection of ozone-safe, high-performance working fluids for low- and high-temperature applications of heat pumps. Comparisons are made in terms of ecological and thermophysical properties for working substances which can be used without change of system designs. We conclu...

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Veröffentlicht in:	Energy (Oxford) 1993, Vol.18 (8), p.867-870
Hauptverfasser:	Goektun, S, Oezkaynak, S
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Energy Energy. Thermal use of fuels Exact sciences and technology Refrigerants Refrigerating engineering Refrigerating engineering. Cryogenics. Food conservation
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Zusammenfassung:	Criteria are described for selection of ozone-safe, high-performance working fluids for low- and high-temperature applications of heat pumps. Comparisons are made in terms of ecological and thermophysical properties for working substances which can be used without change of system designs. We conclude that R-134, R-134a, E-115, and possibly R-152a are promising alternatives to R-12 for low-temperature applications. Six refrigerants [E-134, 5FP, R-143, ethyl chloride (R-160), ethyl bromide, and propyl chloride] are promising refrigerants for replacing R-114 in high-temperature applications.
ISSN:	0360-5442
DOI:	10.1016/0360-5442(93)90064-K