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AN EXPERIMENTAL INVESTIGATION OF AIR-SIDE HEAT AND MASS TRANSFER ON DOMESTIC REFRIGERATOR-FREEZER FINNED-TUBE EVAPORATORS.

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

Summary

THE RATE OF FROST DEPOSITION ON THE EVAPORATOR WAS DETERMINED TO BE CONSTANT WITH RESPECT TO TIME FOR A TEN-HOUR TESTING PERIOD OVER A RANGE OF AIR INLET TEMPERATURES AND RELATIVE HUMIDITIES, REFRIGERANT TEMPERATURES, AND AIRFLOW RATES. BASED ON THESE RESULTS, THE FROSTING RATE WAS CORRELATED TO A MASS TRANSFER DRIVING POTENTIAL, DEFINED HERE AS THE DIFFERENCE IN THE HUMIDITY RATIO OF THE AIR AT THE EVAPORATOR SURFACE AND AWAY FROM THE SURFACE, AND THE AIRFLOW RATE. IN ADDITION, A CORRELATION OF THE MASS TRANSFER COEFFICIENT TO THE AMOUNT OF ACCUMULATED FROST WAS ALSO ATTEMPTED. IT WAS FOUND THAT THE MASS TRANSFER COEFFICIENT INCREASED AS THE AMOUNT OF FROST ON THE COIL INCREASED.

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Details

  • Original title: AN EXPERIMENTAL INVESTIGATION OF AIR-SIDE HEAT AND MASS TRANSFER ON DOMESTIC REFRIGERATOR-FREEZER FINNED-TUBE EVAPORATORS.
  • Record ID : 1992-2233
  • Languages: English
  • Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
  • Publication date: 1991/08/10
  • Document available for consultation in the library of the IIR headquarters only.

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