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Results and experiences with the first commercial pilot plant CO2 heat pump water heater.
Author(s) : ZAKERI G. R., NEKSÅ P., REKSTAD H., et al.
Summary
The first commercial pilot plant heat pump water heat with CO2 as working fluid has been built and installed in Norway by Frostmann a.s. in co-operation with SINTEF Energy Research, Refrigeration and Air Conditioning. In the evaporator (cascade heat exchanger), NH3 condenses (either partial or full condensation) giving up heat to evaporating CO2. The heat pump system produces hot water with temperature of 70-80 °C. The operating system is very stable, with very little variation in heat source temperature. A heating-COP of 5.77 is achieved when tap water is heated from 6.7 to 66 °C.
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Details
- Original title: Results and experiences with the first commercial pilot plant CO2 heat pump water heater.
- Record ID : 2001-0684
- Languages: English
- Source: Final proceedings of the 4th IIR-Gustav Lorentzen Conference on Natural Working Fluids at Purdue.
- Publication date: 2000/07/25
Links
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See the conference proceedings
Indexing
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Themes:
Commercial heat pumps;
Ammonia;
CO2 - Keywords: Measurement; Ammonia; Heat pump; Performance; Cascade system; Refrigerant; Heating; Domestic water; CO2
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Development of advanced heat pump for hot water...
- Author(s) : SAIKAWA M., HASEGAWA H.
- Date : 1993/04/26
- Languages : English
- Source: Heat Pumps for Energy Efficiency and Environmental Progress: Proceedings of the 4th International Energy Agency Heat Pump Conference.
View record
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Commercial heat pumps for water heating and hea...
- Author(s) : NEKSÅ P., REKSTAD H., ZAKERI G. R., et al.
- Date : 1999/03/18
- Languages : English
- Source: CO2 technology in refrigeration, heat pump & air conditioning systems (with presentation of the results of the European JOULE/THERMIE Research Programme on CO2 heat pumping systems - COHEPS). Workshop proceedings.
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CO2 as refrigerant. Possible applications.
- Author(s) : HALOZAN H., RIEBERER R.
- Date : 2000/07/25
- Languages : English
- Source: Final proceedings of the 4th IIR-Gustav Lorentzen Conference on Natural Working Fluids at Purdue.
- Formats : PDF
View record
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Commercial sized CO2 heat pump water heater: No...
- Author(s) : HUFF H., SIENEL T.
- Date : 2006/05/29
- Languages : English
- Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Formats : PDF
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Heat pump operating with NH3 or CO2 - A compara...
- Author(s) : DOBROVICESCU A., SERBAN A., FILIPOIU C., et al.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
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