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http://dx.doi.org/10.3795/KSME-B.2010.34.3.291

Convective Heat Transfer Correlations for the Compact Heat Exchanger with Circular Tubes and Flat Tubes-Plate Fins  

Moh, Jeong-Hah (Division of Mechanical & Automotive Engineering, Wonkwang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.34, no.3, 2010 , pp. 291-299 More about this Journal
Abstract
Aspect-ratio-based numerical analysis is carried out to investigate the air-side convective heat transfer characteristics in compact heat exchangers with circular tubes and flat tubes-plate fins. The RNG $k-{\varepsilon}$ model is adopted for turbulence analysis. The numerical analysis is carried out for aspect ratios ranging from 3.06 to 5.44 and for Reynolds numbers ranging from 1,000 to 10,000. The calculated results indicate a correlation between the friction factor and Colburn j factor in the compact heat exchanger system for the range of aspect ratios under consideration. The results obtained for circular tubes and flat tubes-plate fins in this study can be utilized to realize the optimal design of an air conditioning system.
Keywords
Compact Heat Exchanger; Circular Tubes and Plate Fins; Flat Tubes and Plate Fins; Friction Factor; Colburn j Factor; Convective Heat Transfer Correlations;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
Times Cited By SCOPUS : 1
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