Design and test of a domestic heat pump with ammonia as refrigerant.
Diseño y pruebas de bomba de calor doméstica con amoniaco como refrigerante.
Author(s) : MONFARED B. A., PALM B.
Type of article: Article
Summary
Among alternative refrigerants, ammonia with zero ozone depleting potential (ODP) and global warming potential (GWP), and favorable thermodynamic properties is a sensible choice as a replacement for the synthetic refrigerants, which are powerful greenhouse gases. In this paper, the results of experiments done on a new ammonia water-to-water heat pump prototype at different evaporation temperatures and compressor speeds are reported. The heat pump is designed to deliver 7 kW heat at evaporation temperature of -5°C and condensation temperature of 40°C. The hot discharge gas from compressor is utilized to provide sanitary hot water, and the rest of the heat is used for preheating the tap water and space heating of a single-family house. The compact design of the heat pump helps reducing the refrigerant charge. To reduce the charge further and to prevent oil accumulation at the bottom of evaporator, a minichannel aluminum heat exchanger is used as evaporator.
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Pages: 34-40 (5 p.)
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Details
- Original title: Diseño y pruebas de bomba de calor doméstica con amoniaco como refrigerante.
- Record ID : 30005367
- Languages: Spanish
- Source: Frío Calor Aire acondicionado - vol. 40 - n. 444
- Publication date: 2012/02
Links
- See translations: Design and test of a domestic heat pump with ammonia as refrigerant.
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