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Development of a high-performance water-to-water heat pump for ground-source application.

Author(s) : SHIBA Y., OOKA R., SEKINE K.

Summary

A high-performance water-to-water heat pump for ground-source application was developed using a plate heat exchanger, a new type of compressor and refrigerant cycle with a liquid-gas heat exchanger. A performance design program used to compute the refrigerant cycle with a liquid-gas heat exchanger was created first. This simulation program could predict the heating/cooling capacity, electric power, and COP. This determined the surface area of the heat exchangers, compressor efficiency and displacement, etc. Second, a real heat pump was designed based on the results of the program, then built and tested to compare its performance with the simulation. As a result, a value of 5.5 was attained both for the cooling COP of the designed heat pump via the simulation and the measured cooling COP of the real heat pump.

Details

  • Original title: Development of a high-performance water-to-water heat pump for ground-source application.
  • Record ID : 2008-1796
  • Languages: English
  • Source: ASHRAE Transactions. 2007 Annual Meeting, Long Beach, CA. Volume 113, part 2 + CD-ROM.
  • Publication date: 2007/06/23

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