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The paper presents experimental results of the CO2 cycle for the tap-water heating application. A laboratory prototype of CO2 cycle with hermetic compressor was built. After optimizing the refrigerant charge and metering valve opening, the gas cooler side water flow rate and tap-water temperature were varied as an experimental parametric study. The performance of CO2 was compared with that of R22. CO2 has 10% higher capacity and COP than R22 over the various ambient temperatures.
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Pages: p 368-375
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Details
- Original title: Experimental evaluation of CO2 water heater.
- Record ID : 1999-2797
- Languages: English
- Source: Natural Refrigerants, Energy Efficiency, Cost and Safety. Natural Working Fluids '98. IIR-Gustav Lorentzen Conference.
- Publication date: 1998/06/02
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
Other heat-pump applications;
CO2 - Keywords: Measurement; Heat pump; Performance; Testing; 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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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
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CO2: a chance for once-through heat pump heaters.
- Author(s) : RIEBERER R., KASPER G., HALOZAN H.
- Date : 1997/05/13
- Languages : English
- Source: CO2 Technology in Refrigeration, Heat Pump & Air Conditioning Systems. Workshop Proceedings.
- Formats : PDF
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CO2 heat pump prototype system: experimental re...
- Author(s) : NEKSA P., REKSTAD H.
- Date : 1997/05/13
- Languages : English
- Source: CO2 Technology in Refrigeration, Heat Pump & Air Conditioning Systems. Workshop Proceedings.
- Formats : PDF
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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
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