GreenHP: Next Generation Heat Pump for Retrofitting Buildings – New Evaporator Component for Large Capacity Air-to-Water Heat Pumps

Authors

  • Christoph Reichl AIT Austrian Institute of Technology GmbH
  • Andreas Strehlow Verwaltungsgesellschaft mbH
  • Thore Oltersdorf Fraunhofer-Institut fuer Solare Energiesysteme ISE
  • Simon Braungardt Fraunhofer-Institut fuer Solare Energiesysteme ISE
  • Marco Pröhl Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik
  • Peter Benovsky AIT Austrian Institute of Technology GmbH
  • Mirza Popovac AIT Austrian Institute of Technology GmbH
  • Thomas Fleckl AIT Austrian Institute of Technology GmbH

DOI:

https://doi.org/10.7250/rehvaconf.2015.015

Keywords:

Air-to-water heat pump, anti-icing, micro-channel tubes, refrigerant charge reduction

Abstract

Air to water heat pumps account by more than 70% for the main share of HP-systems of the European HP market. Retrofitting applications in particular show a very high potential for the A/W heat pump technology. Innovative components will pave the way for the next generation heat pumps. In case of the evaporator, low refrigerant charge is introduced by using bionic distributors and evaporator icing is studied on several heat exchanger designs by using advanced experimental and numerical methods.

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Published

03.06.2015

Issue

2015: Proceedings of REHVA Annual Conference "Advanced HVAC and Natural Gas Technologies"

Section

Articles