TECHNICAL PAPERS: Heat and Mass Transfer

Modeling the Cooling Process Path of a Dehumidifying Coil Under Frosting Conditions

[+] Author and Article Information
P. J. Mago

Department of Mechanical Engineering, Universidad de Oriente, Puerto La Cruz, Venezuela

Dr. S. A. Sherif

Department of Mechanical and Aerospace Engineering, University of Florida, 228 MEB, P.O. Box 116300, Gainesville, FL 32611-6300

J. Heat Transfer 124(6), 1182-1191 (Dec 03, 2002) (10 pages) doi:10.1115/1.1494451 History: Received July 31, 2001; Revised March 20, 2002; Online December 03, 2002
Copyright © 2002 by ASME
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Grahic Jump Location
Schematic of the freezer showing the test and auxiliary coils, the artificial load generator, and the location of thermocouples for temperature measurements
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Schematic of the Test Fan-Coil Unit (FCU-T)
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Schematic of the artificial sensible and latent load generator
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Approximation method for treating a rectangular-plate fin of uniform thickness in terms of a flat circular-plate fin of equal area
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Efficiency for a circular-plate fin of uniform thickness (Kuehn et al. 41)
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Representation of the calculated and the straight-line dehumidifying paths through the dehumidifying coil (points on the chart are arbitrarily chosen for purposes of calculating the path)
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Representation of the calculated cooling air path through the dehumidifying coil showing the calculated leaving air conditions from each row as well as the measured coil inlet and outlet states
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Representation of processes on the psychrometric chart showing where the transition to a supersaturated state occurs by keeping the same entering air temperature (−8.3 °C) and gradually increasing the entering air relative humidity




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