Summary
The purpose of the paper is to present an approach to the use of CO2 to fit the requirements of large heat pumps. Making use of the special properties of CO2 in transcritical operation, it is possible to achieve a nearly ideal fit to the gliding temperature, which is required in such applications as large district heating schemes. The high pressure differential and relatively small flash gas volume open the possibility of efficient recovery of the expansion exergy in a compact expander. By taking advantage of these qualities it is possible to design large heat pumps with the following merits: completely safe and environmentally compatible refrigerant; superior performance, about 20% higher COP than conventional CFC systems; compact and cost effective components.
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Pages: p 191-197
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Details
- Original title: Large heat pumps using CO2 refrigerant.
- Record ID : 1994-0498
- Languages: English
- Subject: Figures, economy, Environment
- Source: Energy Efficiency in Refrigeration and Global Warming Impact.
- Publication date: 1993/05/12
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles from the proceedings (34)
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Indexing
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The CO2 heat pump project at the Technische Uni...
- Author(s) : HEYL P., PREUSSER S., KRAUS W. E.
- 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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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
View record
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Incentives and the value of avoided environment...
- Author(s) : JONES T.
- 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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CO2 heat pump water heater for cold area.
- Author(s) : KOBAYASHI M., KUWABARA O., MUKAIYAMA H., et al.
- Date : 2002/12/05
- Languages : Japanese
- Source: The International Symposium on HCFC Alternative Refrigerants and Environmental Technology 2002: Latest technology for Energy Conservation, Refrigerants and Recycling on Air-Conditioning and Refrigeration Equipment for the 21st century. Proceedings.
View record
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Heat pumps in competition with other options fo...
- Author(s) : OKKEN P. A., GERBERS D., KRAM T., LINSSEN B., LAKO P., YBEMA J. R.
- 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