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A combined-cycle refrigeration system using ejector-cooling cycle as the bottom cycle.

Author(s) : HUANG B. J., PETRENKO V. A., CHANG J. M., et al.

Type of article: Article, IJR article

Summary

A combined-cycle refrigeration system (CCRS) that comprises a conventional refrigeration and air-conditioning system using mechanical compressor (RAC/MC) and an ejector-cooling cycle (EJC) is proposed and studied. The EJC is driven by the waste heat from the RAC/MC and acts as the bottom cycle of the RAC/MC. A system analysis shows that the COP of a CCRS is significantly higher than a single-stage refrigeration system. Improvement in COP can be as high as 18.4% for evaporating temperature of the RAC/MC at -5 °C. A prototype of the CCRS was built and tested in the study, which shows that the CCRS using the ejector-cooling cycle as the bottom cycle of the RAC/MC is viable. Further improvement in COP is possible since the prototype is not designed and operated at an optimal condition.

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Pages: 391-399

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Details

  • Original title: A combined-cycle refrigeration system using ejector-cooling cycle as the bottom cycle.
  • Record ID : 2001-2696
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 24 - n. 5
  • Publication date: 2001/08

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