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Experimental analysis of refrigeration CO2 systems using an additional compressor to enhance energy performance.

Number: 0079

Author(s) : NEBOT-ANDRÉS L., CALLEJA-ANTA D., SÁNCHEZ D., CABELLO R., LLOPIS R.

Summary

Several solutions are being studied on refrigeration CO2 systems with the aim of improving their energy performance. Subcooling systems are one of the solutions that are taking more importance in the last years. Other systems, like parallel compression, can also provide similar energy improvements in transcritical CO2 systems, and they are considered as the state-of-the-art nowadays. In this work, a transcritical commercial refrigeration plant is studied experimentally working with two mechanical subcooling system: the integrated and the dedicated and also working with parallel compressor. The plant has been tested at three different heat rejection levels, between 25.0ºC and 35ºC under optimum conditions of subcooling degree and gas-cooler pressure in order to achieve the best plant’s COP. The performance of the three alternatives is studied and then compared, determining with is the best solution for the evaluated conditions.

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Pages: 9 p.

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Details

  • Original title: Experimental analysis of refrigeration CO2 systems using an additional compressor to enhance energy performance.
  • Record ID : 30029692
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0079
  • Document available for consultation in the library of the IIR headquarters only.

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