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A propane water-to-water heat pump booster for sanitary hot water production: seasonal performance analysis of a new solution optimizing COP.

Number: pap. ID51

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

Summary

This work presents the analysis, modelling and optimization of a water-to-water propane heat pump booster (heat sink equal to 10 and 20°C) for domestic hot water production up to 60°C. This study is related to one of the case studies to be developed in the framework of an FP7 European Project, Next Heat Pump Generation Working With Natural Fluids (NxtHPG) which aims at the definition of five high efficiency heat pump prototypes working with natural fluids. To optimize the heat pump operation, its performance parameters were correlated as a function of the secondary fluid inlet temperature at both the evaporator and the condenser. The optimal operating points were identified in terms of optimal condensation pressure at different working conditions. In order to assess the unit, an integrated model of the system was developed in TRNSYS including the heat pump, the neutral loop, the controls and the thermal load. Results obtained led to the conclusion that in order to achieve high SPF an optimal control of the unit is needed.

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Pages: 8 p.

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Details

  • Original title: A propane water-to-water heat pump booster for sanitary hot water production: seasonal performance analysis of a new solution optimizing COP.
  • Record ID : 30012206
  • Languages: English
  • Source: 11th IIR Gustav Lorentzen Conference on Natural Refrigerants (GL2014). Proceedings. Hangzhou, China, August 31-September 2, 2014.
  • Publication date: 2014/08/02

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