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CO2 vapour injected scroll compressors for air to water heat pump applications.

Author(s) : WINANDY E., FONTAINE A. F.

Summary

The vapour injected scroll compressor can accommodate mid-pocket inter-stage injection and hence enables an economized cycle within one compressor. This enhances CO2 transcritical cycle performance especially for heat pump applications. The first part of the paper gives an overview of the transcritical CO2 cycle applied in air to water heat pumps, its potential and limitations. The discussion is then focused on the intermediate vapour injection with an economizer, its concept and performance. The second part of the paper evaluates the seasonal efficiency of the transcritical CO2 cycle with and without vapour injection and a comparison is made with currently available vapour compression cycle technologies using HFCs.

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Pages: 2006-2

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Details

  • Original title: CO2 vapour injected scroll compressors for air to water heat pump applications.
  • Record ID : 2007-1518
  • Languages: English
  • Source: 7th IIR-Gustav Lorentzen Conference on Natural Working Fluids (GL2006). Proceedings
  • Publication date: 2006/05/29

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