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An Experimental Study of the Airside Performance of Slit Fin-and-Tube Heat Exchangers under Dry and Wet Conditions  

Chang, Keun-Sun (Department of Mechanical Engineering, Sunmoon University)
Long, Phan-Than (Department of Mechanical Engineering, Sunmoon University)
Publication Information
International Journal of Air-Conditioning and Refrigeration / v.17, no.1, 2009 , pp. 7-14 More about this Journal
Water condensate accumulated on the surface of a fin-and-tube heat exchanger significantly affects its thermal and hydraulic performances. The purpose of this study is to investigate the effects of condensate retention on the air-side heat transfer performance and flow friction for various flow and geometric conditions. Total of twelve samples of slit and plate fin-and-tube heat exchangers are tested under dry and wet conditions. The thermal fluid measurements are made using a psychrometric calorimeter. Frontal air velocity varies in the range from 0.7 m/s to 1.5 m/s. Using the experimental data, presented are heat transfer coefficients in terms of Colburn j-factors and friction factors, and these data are compared with the existing correlations.
Fin-tube heat exchanger; Slit fin; Dry condition; Wet condition; Dehumidification;
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Times Cited By KSCI : 1  (Citation Analysis)
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