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VERIFICATION OF FIN EFFICIENCY THEORY FOR THE CIRCULAR FINNED-TUBE HEAT EXCHANGER BY NUMERICAL EXPERIMENT  

Kang, H.C. (군산대학교 기계자동차공학부)
Lim, B.B. (군산대학교대학원 기계공학과)
Lee, J.H. (군산대학교대학원 기계공학과)
Publication Information
Journal of computational fluids engineering / v.14, no.4, 2009 , pp. 7-12 More about this Journal
Abstract
The purpose of the present study is to investigate the convective heat transfer characteristics and the validity of fin efficiency of the circular finned-tube heat exchanger by using commercial CFD code. The heat transfer coefficient obtained by using the laminar model was 22% overestimated to the experimental data. The fin surface temperature compared with the experimental data measured by the liquid crystal method. The fin efficiency by the present numerical experiment, defined as normalized and averaged fin surface temperature, was greater than the theoretical fin efficiency and the difference is increased at high value of the factor $mr{\phi}$.
Keywords
Heat Transfer; Heat Exchanger; Circular Tube; Fin Efficiency; Numerical Experiment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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