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Nowadays, the heat pump water heater is becoming a very hot topic in the hot water industry. However, it has many problems because of higher condensing temperature and large-scale operation conditions. Considering these problems, this paper presents two prototypes: one is a common model which adopts a reciprocating compressor to ensure reliability, the other is assembled using a rotary compressor with refrigerant ejection port which can be used in cold regions. The working principle and the basic feature of the two models are introduced in this paper. The operation performance was tested under different ambient temperatures from -7 to 43°C, and frost melting is also discussed about. Comparatively, the two models can provide much better energy performance than the common water heater, and more safety. It is also indicated that the heat pump water heaters could be more reliability under large-scale operation conditions with higher efficiency.
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Pages: ICR07-E2-475
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Details
- Original title: An experimental study on a heat pump water heater system.
- Record ID : 2008-0857
- Languages: English
- Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
- Publication date: 2007/08/21
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Indexing
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ADVANCED COMPRESSORS.
- Author(s) : RIEGGER O. K.
- Date : 1990/03/12
- Languages : English
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Low cost heat pump water heater (HPWH).
- Author(s) : MEI V. C., BAXTER V. D., LAMB D. S.
- 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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Technical development of gas injection on rotar...
- Author(s) : WANG B., LIU X., DING Y.
- Date : 2017/07/20
- Languages : English
- Source: 8th international conference on compressors and refrigeration, 2017.
- Formats : PDF
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Performance of CO2 heat pump water heaters.
- Author(s) : FERNANDEZ N., HWANG Y., RADERMACHER R.
- Date : 2008/09/07
- Languages : English
- Source: 8th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2008)
- Formats : PDF
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System design of a CO2 heat pump water heater.
- Author(s) : WU Z., XU M., WANG Y., 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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