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A simulation study on the operating performance of a new type of solar-air source heat pump water heater (SAS-HPWH) hasbeen presented. The SAS-HPWH used a specially designed flat-plate heat collector/evaporator with spiral-finned tubes to obtainenergy from both solar irradiation and ambient air for hot water heating. Using the meteorological data in Nanjing, China, thesimulation results based on 150 L water heating capacity showed that such a SAS-HPWH can heat water up to 55°C efficiently under various weather conditions all year around. In this simulation study, the influences of solar radiation, ambient temperature and compressor capacity on the performance of the SAS-HPWH were analyzed. In order to improve the overall operating performance, the use of a variable-capacity compressor has been proposed. [Reprinted with permission from Elsevier. Copyright, 2005].
Details
- Original title: A simulation study on the operating performance of a solar-air source heat pump water heater.
- Record ID : 2006-2643
- Languages: English
- Source: Applied Thermal Engineering - vol. 26 - n. 11-12
- Publication date: 2006/08
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Indexing
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Themes:
Heat pumps techniques;
Other heat-pump applications - Keywords: Simulation; Heat pump; Performance; Solar energy; Heating; Domestic water
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- Date : 2006/05/21
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- Source: 2008 Purdue Conferences. 19th International Compressor Engineering Conference at Purdue & 12th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
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