Share

IIR document

Study on a solar hybrid heat pump system using carbon dioxide.

Number: pap. ID: 627

Author(s) : KIM W. S., OH J., PARK C., et al.

Summary

A simulation study on solar hybrid heat pump system using carbon dioxide for residential applications was carried out for varying operating conditions. The system consists of a solar system (concentric evacuated tube solar collector and heat storage tank) and a CO2 heat pump system (double-pipe heat exchanger, fin-tube heat exchanger, electric expansion valve,and compressor). As a result, the solar collector efficiency and solar collector heat were decreased by 7.6% and 2.7 kWh, respectively, when the heat pump operating temperature rose by 2°C. As the outdoor temperature rose by 2°C, the heat pump heating COP increased by about 6.5% and heating load decreased by about 7.6%, on average. Also, the heating load increased by 14.3% with a rise of indoor setting temperature of 2oC. The solar hybrid CO2 heat pump system in this study had maximum solar fraction of 24.5%.

Available documents

Format PDF

Pages: 8 p.

Available

  • Public price

    20 €

  • Member price*

    Free

* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).

Details

  • Original title: Study on a solar hybrid heat pump system using carbon dioxide.
  • Record ID : 30001112
  • Languages: English
  • Source: Proceedings of the 23rd IIR International Congress of Refrigeration: Prague, Czech Republic, August 21-26, 2011. Overarching theme: Refrigeration for Sustainable Development.
  • Publication date: 2011/08/21

Links


See other articles from the proceedings (569)
See the conference proceedings

Indexing