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http://dx.doi.org/10.3795/KSME-B.2007.31.12.994

Numerical Analysis for the Air-Side Convective Heat Transfer Characteristics in a Compact Heat Exchanger with Circular Tubes and Continuous Plate Fins  

Moh, Jeong-Hah (원광대학교 기계자동차공학부)
Lee, Sang-Ho (원광대학교 기계자동차공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.31, no.12, 2007 , pp. 994-1001 More about this Journal
Abstract
Numerical analysis has been carried out to investigate air-side convective heat transfer characteristics in a compact heat exchanger with circular tubes and continuous plate fins. Simulation results such as air velocity and temperature distributions are presented, and heat transfer coefficients are compared with previous experimental correlations. Three models of standard and RNG $k-{\varepsilon}$, and Reynolds stress are applied for turbulence model applicability. Predicted heat transfer coefficient from the models of standard and RNG $k-{\varepsilon}$ are very close to those of the heat transfer correlations while there are relatively large difference, more than 17 percentage in the result from the Reynolds stress model. From the calculated results a correlation for Colburn j factor in the compact heat exchanger system is suggested.
Keywords
Compact Heat Exchanger; Convective Heat Transfer; Air; Turbulence Model; Colburn J Factor; Recirculating; Flow; Circular Tubes and Plate Fins;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 3
연도 인용수 순위
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