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EFFECTIVENESS OF FINNED-TUBE HEAT EXCHANGER COATED HYDROPHILIC-TYPE FILM.

Author(s) : MIMAKI M.

Summary

FINNED-TUBE AIR HEAT EXCHANGERS IN HEAT PUMP-TYPE ROOM AIR CONDITIONERS OPERATE AS BOTH EVAPORATORS AND CONDENSERS. WHEN OPERATED AS AN EVAPORATOR, IT PRESENTS THE FOLLOWING PROBLEMS: DRAINING FROM SURFACE OF FINS ATTACHED TO THE INDOOR UNIT DURING COOLING IN SUMMER AND DEFROSTING OF THE OUTDOOR UNIT DURING HEATING IN WINTER. TO OVERCOME THESE PROBLEMS, HYDROPHILICLY COATED FINS WERE TESTED. IT WAS CONFIRMED THAT THEY LED TO A 40-50% REDUCTION OF AIR PRESSURE DROP ACROSS THE HEAT EXCHANGER.

Details

  • Original title: EFFECTIVENESS OF FINNED-TUBE HEAT EXCHANGER COATED HYDROPHILIC-TYPE FILM.
  • Record ID : 1988-0274
  • Languages: English
  • Publication date: 1987
  • Source: Source: ASHRAE Trans.
    vol. 93; n. 1; 62-71; 5 fig.; 7 tabl.; discuss.
  • Document available for consultation in the library of the IIR headquarters only.

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