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Experimental research on configuration optimization of a frost-free refrigerator-freezer with the parallel circuit cycle.

Author(s) : YAN G., LIU G., ZHOU M., YU J.

Type of article: IJR article

Summary

This paper presents an experimental research on configuration optimization of a frost-free refrigerator-freezer with the parallel circuit cycle based on the analysis of circuit switching characteristics. Through combination optimization of R-fan voltage, F-fan voltage, R-capillary tube flow capacity, refrigerant charge, structure of suction pipe, F-compressor speed and R-compressor speed, the system could save 9.27% energy consumption compared with the initial condition. The experimental results also showed that the larger the R-capillary tube flow capacity, the larger the flow rate of the RC, resulting in the quickly temperature drop in R-cabinet and slowly temperature drop in R-cabinet based on “R-cabinet temperature priority” control strategy. Additionally, the R-cabinet temperature drop rate decreased with the increase of ambient temperature but the F-cabinet temperature drop rate was almost unaffected by the ambient temperature.

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Pages: 415-426

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Details

  • Original title: Experimental research on configuration optimization of a frost-free refrigerator-freezer with the parallel circuit cycle.
  • Record ID : 30027729
  • Languages: English
  • Subject: Technology
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 118
  • Publication date: 2020/10
  • DOI: http://dx.doi.org/0.1016/j.ijrefrig.2020.06.013
  • Available in the IIR library

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