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Evaluating the air-cycle as a refrigerant free alternative for temperature controlled road transport.

Author(s) : DORAN W. J., SPENCE S. W. T., ARTT D. W., et al.

Summary

An air-cycle demonstrator plant was constructed within the restricted physical envelope of an existing Thermo King SL200 trailer refrigeration unit. This unique plant operated satisfactorily. However, the fuel consumption was excessively high. Poor heat exchanger performance was found to be a major contributor to low COP values. The performance of an optimised air-cycle refrigeration unit for the same application was predicted. The energy requirement of the optimised air-cycle unit was 7% greater than the equivalent vapour-cycle unit at full-load operation, but 35% less at part-load. The analysis demonstrated that the air-cycle system could potentially match the overall energy consumption of the vapour-cycle transport refrigeration unit, while bringing the benefit of a completely refrigerant free system.

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Pages: 2004-2

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Details

  • Original title: Evaluating the air-cycle as a refrigerant free alternative for temperature controlled road transport.
  • Record ID : 2005-2833
  • Languages: English
  • Source: Natural Working Fluids 2004: 6th IIR-Gustav Lorentzen Conference
  • Publication date: 2004/08/01

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