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Air source gas absorption heat pump cycle with full heating output at low outdoor ambient and high supply temperatures.

Author(s) : GUERRA M.

Summary

The typical retrofit building requirements are maximum heating capacity and increasing supply temperatures with decreasing outdoor temperature, while heat pumps behave exactly the opposite, providing decreasing heating capacities and decreasing supply temperatures with decreasing outdoor temperature. In addition, heat pumps maximum operating temperature at low outdoor ambient is not always enough for the winter minimum design temperature. To overcome these limitations, a new air source modulating gas absorption heat pump cycle design has been developed having the ability to boost the heat pump to a full nominal heating capacity at -30°C outdoor ambient while providing 70°C leaving water. The capacity "booster" design has been simulated on a modulating gas fired absorption heat pump for different outdoor ambient, input load and delivery water temperatures.

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Format PDF

Pages: 67-74

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Details

  • Original title: Air source gas absorption heat pump cycle with full heating output at low outdoor ambient and high supply temperatures.
  • Record ID : 30001179
  • Languages: English
  • Source: Sources/sinks Alternative to the Outside Air for Heat Pump and Air-conditioning Techniques (Alternative Sources - AS), Padua, Italy, April 5-7, 2011. / International Sorption Heat Pump Conference (ISHPC11), Padua, Italy, April 6-8, 2011.
  • Publication date: 2011/04/06

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