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Screening of non-CFC alternatives for high-temperature heat pumps.
Author(s) : KAZACHKI G., GAGE C.
Summary
Ten pure fluids (R134, R134a, R245cb, R227ea, R236fa, RE134, R236ea, R245fa, R245ca, R123) and three blends are analyzed as refrigerants for high-temperature heat pumps at three sets of evaporating/condensing temperatures: 7/80 deg C, 20/100 deg C, and 30/120 deg C. Aside from the commonly used thermodynamic analytical criteria, design criteria based on R410A scroll air-conditioning and heat-pump compressor are applied: discharge pressure of 3.4 megapascals continuous and 4.1 to 4.5 megapascals short-time, pressure ratio of 10, and isentropic discharge temperature at 130-145 deg C. The heat cost reflecting the market conditions is used to make the final selection.
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Pages: p 105-111
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Details
- Original title: Screening of non-CFC alternatives for high-temperature heat pumps.
- Record ID : 1998-1915
- Languages: English
- Source: Heat Pump Systems, Energy Efficiency, and Global Warming.
- Publication date: 1997/09/01
Links
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Indexing
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Themes:
Heat pumps techniques;
HCFCs;
HFCs;
Other refrigerants - Keywords: R134a; R245cb; R245ca; R236ea; R227ea; R134; R123; Heat pump; High temperature; Testing; Refrigerant
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- Author(s) : KAZACHKI G. S., GAGE C. L., HENDRIKS R. V.
- Date : 1996/09
- Languages : English
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Investigation of HFC-236ea and HFC-236fa as CFC...
- Author(s) : KAZACHKI G. S., GAGE C. L., HENDRIKS R. V., RHODES W. J.
- Date : 1994/09/21
- Languages : English
- Source: CFCs, the Day After.
- Formats : PDF
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Thermodynamic evaluation and compressor charact...
- Author(s) : KAZACHKI G. S., GAGE C. L.
- Date : 1993/10/20
- Languages : English
- Source: The 1993 International CFC and Halon Alternatives Conference. Stratospheric Ozone Protection for the 90's. Proceedings.
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Water vapour as refrigerant for a new high temp...
- Author(s) : CHAMOUN M., RULLIERE R., HABERSCHILL P., et al.
- Date : 2011/08/21
- Languages : English
- Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
- Formats : PDF
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- Author(s) : MADSBOELL H., WEEL M., KOLSTRUP A.
- 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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