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Comparison and analysis on multi-objectives of cascade refrigeration system using CO2 as low temperature cycle refrigerant.

Number: pap. 74

Author(s) : NING J., ZHENG T.

Summary

In this paper, based on the thermodynamics, economy and environment cascade refrigeration systems of R290, R32, R717 and R404A as high-temperature cycle refrigerant respectively, CO2 as low-temperature cycle refrigerant are compared and analyzed in multiple target. It is concluded that, under the same conditions, the cascade refrigeration system using R717 as high-temperature circuit refrigerant has higher thermal efficiency, better economy and more friendly environment compared to the other three cascade
refrigeration systems. R290 / CO2 and R32/CO2 cascade refrigeration systems have similar thermal efficiency and friendly environment, but the R290 / CO2 cascade refrigeration system has better economy. The coefficient of performance, economyand environment of the R404A / CO2 cascade refrigeration system compared with that of the R717/CO2 , R290 / CO2 and R32 / CO2 cascade refrigeration system respectively decreace by14.1%, 7.5%, 13.7%, 8.0%, 5.0%, 7.8% and 6.6%, 4.4%, 6.8%.

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Details

  • Original title: Comparison and analysis on multi-objectives of cascade refrigeration system using CO2 as low temperature cycle refrigerant.
  • Record ID : 30023430
  • Languages: English
  • Source: 5th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Beijing, Chine, 6-8 avril 2018
  • Publication date: 2018/04/06
  • DOI: http://dx.doi.org/10.18462/iir.iccc.2018.0074

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