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Energy cost analysis of heat recovery in CO2 supermarket refrigeration systems.

Number: pap. n. 9

Author(s) : FIDORRA N., HAFNER A., NEKSÅ P., et al.

Summary

Heat recovery for space heating from CO2 refrigeration systems in supermarkets is becoming a widely used option to improve the overall energy efficiency in supermarkets. The amount of recoverable heat depends on the required temperature level. In transcritical operation the major share of heat can be recovered on a temperature level suitable for space heating. However, transcritical operation requires higher compressor power and results in a lower COP of the refrigeration system. Thus, the saved costs from conventional heating have to be compared with additional costs for electricity-consumption of the refrigeration system. This paper analyses the overall energy costs of heat recovery in CO2 refrigeration for supermarkets as a function of heating requirements and the energy prices for the refrigeration system and space heating.

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Pages: 8 p.

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Details

  • Original title: Energy cost analysis of heat recovery in CO2 supermarket refrigeration systems.
  • Record ID : 30014591
  • Languages: English
  • Source: 6th Conference on Ammonia and CO2 Refrigeration Technology. Proceedings: Ohrid, North Macedonia, April 16-18, 2015.
  • Publication date: 2015/04/16

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