Simulation and evaluation of CO2 heat pump system with energy storage for ZEB
Authors: Publication Year: 2014


Reduced energy consumption is one of the most cost effective ways of reducing CO2 emissions for combustion of fossil fuels. Residential buildings must become more energy efficient according to the Energy Performance in Buildings Directive (EPBD). The demands for domestic hot water have become more significant. Therefore the share of domestic hot water (DHW) in high insulated houses constitutes an increasing share of total heating demand.

For DHW and space heating purpose CO2 tripartite gas cooler heat pumps are among the most efficient systems. Due to heat rejection at different temperature levels a large enthalpy difference and low compressor power input is achieved. A dynamic  model for a CO2 heat pump system combined with energy storage (by means of ice) for a zero emission building (ZEB) has been developed. The goal of the simulation is the optimization of the heat pump and of its operational modes.



Additional Info

  • WP: Energy supply systems and services
  • Publication Year: 2014
  • ISSN / ISBN: 978‐2‐36215‐003‐6
  • Pages: 158-165
  • Name of proceedings: Proceedings of the 3rd IIR International Conference on Sustainability and the Cold Chain (Refrigeration Science and Technology Proceedings)
  • Name of conference: 3rd IIR International Conference on Sustainability and the Cold Chain
  • Town: London
  • Country: UK
  • Date from: Monday, 23 June 2014
  • Date to: Wednesday, 25 June 2014
  • Publisher: International Institute of Refrigeration

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