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The effect of frost accumulation on the performance of domestic refrigerator-freezer finned-tube evaporator coils.

Author(s) : RITE R. W., CRAWFORD R. R.

Summary

In previous studies it was found that with a constant air flow rate, the average overall heat transfer coefficient (UA-value) of the heat exchanger, increased initially as frost began to form on it, and then decreased while frost continued to deposit. Pressure drop on the air side was found to increase consistently during that process. It was theorized that the cause of the initial increase was the added surface due to the roughness of frost. Then, the thickness of frost is becoming preponderant. The paper relates the results of test on a facility, allowing variation of all necessary parameters.

Details

  • Original title: The effect of frost accumulation on the performance of domestic refrigerator-freezer finned-tube evaporator coils.
  • Record ID : 1993-0924
  • Languages: English
  • Publication date: 1991
  • Source: Source: ASHRAE Trans.
    vol. 97; n. 2; 428-437; 12 fig.; 5 tabl.; 17 ref.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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