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Performance experiment of R-290/CO2 cascade refrigeration system.

[In Chinese. / En chinois.]

Author(s) : NING J., LI H., PENG M.

Type of article: Article

Summary

Performance experiments of R-290/CO2 cascade refrigeration system were conducted. The performance of a cascade refrigeration system having a high temperature cycle using R-290 as refrigerant and a CO2 based low temperature cycle was compared with that of a cascade refrigeration system having a high temperature cycle using R-22 as refrigerant and a CO2 based low temperature cycle. The results show that the optimum mass flow ratio and the maximum COP of the R-290/CO2 cascade refrigeration system increase with the increase of evaporation temperature and with the decrease of condensation temperature. Moreover, the power consumption of the R-290 compressor is slightly higher than that of the R-22 compressor and the COP(h) of the R-290 cycle is higher than that of the R-22 cycle at the higher compressor inlet temperatures.

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Pages: 57-60

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Details

  • Original title: [In Chinese. / En chinois.]
  • Record ID : 2008-1202
  • Languages: Chinese
  • Source: Journal of Refrigeration - vol. 28 - n. 118
  • Publication date: 2007/12

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