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CO2: a chance for once-through heat pump heaters.
Author(s) : RIEBERER R., KASPER G., HALOZAN H.
Summary
To investigate this cycle in detail, the steady-state design model HPSIM has been developed. With the model heat pump water heaters with heating capacities of about 20 kilowatts have been simulated. The differences compared with conventional units are a result of the high CO2 operating pressure: the volumetric heating capacity is (due to the high density) extremely large and results in small tube diameters. An internal heat exchanger can be helpful. First results show that once-through heat pump water heaters with inlet temperatures of 10 deg C and supply temperature of 60 deg C can achieve COPs of higher than 5.
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Details
- Original title: CO2: a chance for once-through heat pump heaters.
- Record ID : 1998-1261
- Languages: English
- Source: CO2 Technology in Refrigeration, Heat Pump & Air Conditioning Systems. Workshop Proceedings.
- Publication date: 1997/05/13
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles from the proceedings (17)
See the conference proceedings
Indexing
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Themes:
Other heat-pump applications;
CO2 - Keywords: Heat pump; COP; Refrigerant; Heating; Domestic water; CO2
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CO2-heat pump for hot potable and service water...
- Author(s) : QUACK H., ZSCHERNIG J., KRAUS W. E., HEYL P., PREUSSER S.
- Date : 1996/09/22
- Languages : English
- Source: Heat pumping technologies towards the next century: applications and markets. Proceedings of the 5th IEA Conference.
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A basic study on CO2 heat pumps especially for ...
- Author(s) : SAIKAWA M., HASHIMOTO K., HASEGAWA H., IWATSUBO T., STRAUB J.
- Date : 1997/05/13
- Languages : English
- Source: CO2 Technology in Refrigeration, Heat Pump & Air Conditioning Systems. Workshop Proceedings.
- Formats : PDF
View record
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Control of CO2 heat pumps.
- Author(s) : RIEBERER R., GASSLER M., HALOZAN H.
- 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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CO2: an old new refrigerant.
- Author(s) : KASPER G., HALOZAN H.
- Date : 1997/09/01
- Languages : English
- Source: Heat Pump Systems, Energy Efficiency, and Global Warming.
- Formats : PDF
View record
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CO2 heat pumps for space heating and tap water ...
- Author(s) : RIEBERER R., NEKSÅ P., SCHIEFLOE P. A.
- Date : 1999/09/19
- Languages : English
- Source: 20th International Congress of Refrigeration: Refrigeration into the Third Millennium.
- Formats : PDF
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