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Comparison of performances between R404A and AZ50 used in commercial refrigeration.

Author(s) : CLODIC D.

Summary

A test bench has been developed consisting in an open display-case and a refrigerating system composed mainly of four hermetic compressors, an air cross-current condenser and an evaporator. The evaporating temperature of -40 deg C allows to keep the temperature of the products at -18 deg C for a room temperature of 25 deg C and a relative humidity of 50%. The test bench is designed in order to acquire data on temperatures in the core of products, of blowing air, returned air, air in the room, at the surface of the evaporator, at the surface of the condenser and of the compressors (suction, discharge, oil), etc. A testing method was defined to allow comparison of performances between R404A and AZ50 with respect to refrigerating capacity, energy efficiency as well as preservation of inner temperature of products laying into the display case.

Details

  • Original title: Comparison of performances between R404A and AZ50 used in commercial refrigeration.
  • Record ID : 1995-0795
  • Languages: English
  • Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
  • Publication date: 1994/07/19
  • Document available for consultation in the library of the IIR headquarters only.

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