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A dynamic simulation model for fan-and-damper controlled refrigerators.

Author(s) : HERMES C. J. L., MELO C.

Summary

A first-principles model for simulating the dynamic behaviour of household refrigerators is presented. The model is used to simulate a typical Brazilian 440-litre top-mount refrigerator, in which the compressor is on-off controlled by the freezer temperature, while a thermo-mechanical damper is used to set the fresh-food compartment temperature. Innovative modelling approaches are proposed for each of the refrigerator components. Numerical predictions are compared to experimental data showing a reasonable level of agreement for the whole range of operating conditions, including the start-up and cycling regimes. The system energy consumption was found to be within plus or minus 10% agreement with the experimental data, while the air temperatures of the compartments were predicted with a maximum deviation of plus or minus 1°C.

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Details

  • Original title: A dynamic simulation model for fan-and-damper controlled refrigerators.
  • Record ID : 2007-1613
  • Languages: English
  • Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2006/07/17

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