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An experimental study on the performance of a two-circuit cycle with parallel evaporators for a domestic refrigerator-freezer.

Number: pap. n. R14, 2190

Author(s) : YOON W. J., JUNG H. W., CHUNG H. J., et al.

Summary

A two-circuit cycle with parallel evaporators (called as "parallel cycle") for a domestic refrigerator-freezer (RF) shows energy saving potential comparing with a conventional cycle with single loop or serial evaporators because of low compression ratio and pressure drop in evaporator during fresh food compartment (r)-operation. Therefore, several home appliance companies adopted this cycle for their household Rfs. this study presents the performance of the parallel cycle according to design parameters such as refrigerant charge, R-capillary tube diameter, R-evaporator, and air flow rate. The experiments were conducted in a side-by-side (SBS) RF using R600a under no load condition at the ambient temperature of 25°C. A quantitative analysis for above design parameters was performed. R-evaporating temperature and refrigerant mass flow rate increased by increasing R-capillary tube diameter from 0.85 mm to 1.4 mm, resulting in the decrease of the compression ratio. Therefore, energy consumption of the optimized parallel cycle was reduced by 7.8% over that of the bypass two-circuit cycle with the same RF platform.

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Pages: 8 p.

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Details

  • Original title: An experimental study on the performance of a two-circuit cycle with parallel evaporators for a domestic refrigerator-freezer.
  • Record ID : 30000764
  • Languages: English
  • Source: 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Publication date: 2010/07/12

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