Summary
The two-stage compression refrigeration cycle was adopted in air-source heat pumps (ASHP) to improve the feasibility of ASHP at low ambient temperature. An air-source heat pump water heater with both modes of single-stage and two-stage compression cycles was designed and a test rig was built up. The experimental results show that the compression ratio in the two-stage compression cycle mode was smaller than that in the single-stage compression cycle mode while the heating ability of the pump with the two-stage compression cycle mode was higher at low ambient temperature. The COP of the two-stage compression system could reach about 1.5 when the ambient temperature was -20°C.
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Details
- Original title: [In Chinese. / En chinois.]
- Record ID : 2010-0241
- Languages: Chinese
- Source: Journal of Refrigeration - vol. 30 - n. 1
- Publication date: 2009/02
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Indexing
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Themes:
Heat pumps techniques;
Compression systems - Keywords: Air-water; Two-stage system; Compression system; Heat pump; Performance; Expérimentation; COP
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Experiment on frosting performance of a two-sta...
- Author(s) : JIN N., LI S., ZHANG K., et al.
- Date : 2010/10
- Languages : Chinese
- Source: Journal of Refrigeration - vol. 31 - n. 5
- Formats : PDF
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HSPF calculation of an economizer double-staged...
- Author(s) : BARBOUCHI S., RITZ J. B., CLODIC D.
- Date : 2008/10/09
- Languages : English
- Source: Scientific symposium: industrial cooling and thermodynamic systems. The Pôle Cristal meetings. [CD-ROM + 4 DVDs]. / Colloque scientifique : froid industriel et systèmes thermodynamiques. Les rendez-vous du Pôle Cristal. [CD-ROM + 4 DVD].
- Formats : PDF
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Development and experimental investigation on t...
- Author(s) : TIAN C. Q., LIANG N., SHI W. X., et al.
- Date : 2006/07/17
- Languages : English
- Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
- Formats : PDF
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Experimental research on quasi two-stage compre...
- Author(s) : XU S., MA G., ZHAO B., et al.
- Date : 2011/10
- Languages : Chinese
- Source: Journal of Refrigeration - vol. 32 - n. 141
- Formats : PDF
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Performance evaluation of a 2-stage CO2 heat pu...
- Author(s) : KUWABARA O., KOBAYASHI M., MUKAIYAMA H., et al.
- Date : 2007/08/21
- Languages : English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Formats : PDF
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