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Residential heat pump for indoor installation operating with R-290 and ice-slurry heat-source.

Number: 0039

Author(s) : GERBER R., SCHUBERT M., ERB K., CARBONELL D.

Summary

Within the H2020 EU project TRI-HP, different heat pumps with natural refrigerants have been developed and built for domestic applications. Two variable speed propane heat pump prototypes with a nominal heating capacity of 10 kW were developed with the goal of showing good performance in refurbished building with high share of space heating demand compared to total demand. The second prototype It shows up to 10 % better COP after improvements compared to the first one and contains an evaporator coated with an ice-phobic surface to produce ice slurries. The heat pumps were tested and compared in two different modes of operation, providing medium temperatures for space heating (30 - 45 °C) and high temperatures for domestic hot water (50 - 70 °C). In the experimental results of the second prototype, a COP between 4.3 and 4.7 for 0/35 °C (evaporator inlet /condenser outlet) and a COP between 2.2 and 2.3 for 0/65 °C were achieved.

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Details

  • Original title: Residential heat pump for indoor installation operating with R-290 and ice-slurry heat-source.
  • Record ID : 30029673
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0039
  • Document available for consultation in the library of the IIR headquarters only.

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