Experimental Study of the Performance of Air Source Heat Pump Systems Assisted by Low-Temperature Solar-Heated Water

  • Jinshun Wu
  • Chao Chen
  • Song Pan
  • Jun Wei
  • Tianquan Pan
  • Yixuan Wei
  • Yunmo Wang
  • Xinru Wang
  • Jiale Su
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Publication date
January 2013
Publisher
Hindawi Limited
Journal
Advances in Mechanical Engineering

Abstract

Due to the low temperatures, the heating efficiency of air source heat pump systems during the winter is very low. To address this problem, a low-temperature solar hot water system was added to a basic air source heat pump system. Several parameters were tested and analyzed. The heat collection efficiency of the solar collector was analyzed under low-temperature conditions. The factors that affect the performance of the heat pumps, such as the fluid temperature, pressure, and energy savings, were analyzed for cases where the solar energy auxiliary heat pump and the air source heat pump are used independently. The optimal heating temperature and the changes in the fluid temperature were determined. The influence of the compression ratio and ...

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