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AN IMPROVED MODEL FOR THE DESIGN OF PLAIN TUBE AIR COOLING AND DEHUMIDIFYING COILS.

Author(s) : HASSAB M. A., KAMAL W. A.

Summary

A MODEL FOR THE DESIGN OF PLAIN TUBE AIR COOLERS UNDER WET, PARTIALLY DRY, OR TOTALLY DRY CONDITIONS IS PRESENTED. DEPARTING FROM GOODMAN'S CLASSIC APPROACH, THE NEW MODEL EMPLOYS NEW CORRELATIONS FOR THE HEAT AND MASS TRANSFER COEFFICIENTS WITHIN THE HEAT EXCHANGER TO PREDICT THE VARIATION OF AIR STATES ALONG ITS LENGTH, IE, FROM ONE ROW TO THE NEXT. THE MODEL IS VERIFIED USING A LARGE NUMBER OF TEST CASES COVERING A WIDE RANGE OF FLOW RATES AND AIR INLET CONDITIONS. IT IS THEN UTILIZED TO STUDY THE INFLUENCE OF THE COIL DESIGN PARAMETERS AS WELL AS AIR AND WATER INLET CONDITIONS ON ITS PERFORMANCE. THE COMPARISON WITH EXPERIMENTAL RESULTS PROVED THE SUPERIORITY OTE LEWIS RELATION.

Details

  • Original title: AN IMPROVED MODEL FOR THE DESIGN OF PLAIN TUBE AIR COOLING AND DEHUMIDIFYING COILS.
  • Record ID : 1989-2265
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 2; 792-812; 12 fig.; 1 tabl.; 13 ref.; append.
  • Document available for consultation in the library of the IIR headquarters only.

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