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IIR documentSummary
Carbon dioxide is very effective as the refrigerant for instantaneous hot water heating, because the low incoming water temperature provides the opportunity to achieve low gas cooler outlet temperatures and hence efficient operation. In a district heating system this is not possible because the water return temperature is typically in the range 60 to 70°C. This paper presents an alternative design for district heating systems which uses carbon dioxide as the primary refrigerant and offers efficiencies above the figures achieved by typical R-134a systems.
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Details
- Original title: District heating systems with CO2 as refrigerant.
- Record ID : 2008-0035
- Languages: English
- Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
- Publication date: 2006/05/29
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Indexing
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Themes:
HFCs;
Other heat-pump applications;
CO2 - Keywords: R134a; Design; Heat pump; Performance; Cascade system; Refrigerant; District heating; CO2
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Two-step district heating and heating.
- Author(s) : STENE J., EGGEN G.
- Date : 1996
- Languages : English
- Source: IEA HPC Newsl. - vol. 14 - n. 1
View record
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Heat pump system with distribution at intermedi...
- Author(s) : STENE J., EGGEN G.
- Date : 1995/08/20
- Languages : English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
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Development of high performance heat pump syste...
- Author(s) : HASEGAWA H., SAIKAWA M., HASHIMOTO K., IWATSUBO T.
- 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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Experimental evaluation of a cascade refrigerat...
- Author(s) : SOUZA L., ANTUNES A., MENDOZA O., 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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Swedes go for R134a in a district heating system.
- Author(s) : O'GORMAN T.
- Date : 1991/10
- Languages : English
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