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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
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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 as a heat pump working fluid for retrofitti...
- Author(s) : ENKEMANN T., KRUSE H., OOSTENDORP P. A.
- Date : 1997/05/13
- Languages : English
- Source: CO2 Technology in Refrigeration, Heat Pump & Air Conditioning Systems. Workshop Proceedings.
- Formats : PDF
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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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Evaluation on efficiency of CO2 heat pump cycle...
- Author(s) : SAIKAWA M., HASHIMOTO K.
- Date : 2001
- Languages : Japanese
- Source: Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 18 - n. 3
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- Author(s) : GADELKAREEM T. M., ELDEINHUSSIN A. M. T. A., HENNES G. M., et al.
- Date : 2019/03
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 99
- Formats : PDF
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The research of transcritical carbon dioxide he...
- Author(s) : XU H. T., et al.
- Date : 2001
- Languages : Chinese
- Source: Journal of Refrigeration - n. 3
- Formats : PDF
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