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Seasonal performance assessment of sanitary hot water production systems using propane and CO2 heat pumps.

Author(s) : TAMMARO M., MONTAGUD C., CORBERÁN J. M., et al.

Type of article: Article, IJR article

Summary

Heat pump water heaters can increase the energy efficiency in sanitary hot water production, which is a relevant share of the final energy consumption in multiresidential and tertiary buildings. Refrigerants for these heat pumps are changing due to the F-Gas Regulation which bans high-GWP fluids. While CO2 is an established solution, propane is a promising low-GWP alternative for heat pump water heaters serving large users in the tertiary sector, where refrigerant charge limits (due to propane's flammability) can be bypassed by installing the heat pump outdoors. Here, the components of a CO2 and a propane air-water heat pump systems of 40 kW are sized and their COPs are compared in different climates; then, the two heat pumps are coupled to a storage tank and a user demand profile (hospital and school). For three different locations, tank size necessary to maintain users' comfort and seasonal performance factor are evaluated through simulation.

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Format PDF

Pages: 222-237

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Details

  • Original title: Seasonal performance assessment of sanitary hot water production systems using propane and CO2 heat pumps.
  • Record ID : 30019998
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 74
  • Publication date: 2017/02

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