The numerical and experimental analysis was carried out to study the thermal-hydrauliccharacteristics in elliptical finned-tube heat exchanger under the dry and air/water spray cooledsystem. Three kinds of major/minor axis ratios (2.5?2.8 and 3) were examined for the ellipticfinned-tube heat exchangers and the results were also compared with the corresponding circularfinned-tube having the same perimeter. The numerical results for the pressure and heat transfercoefficient at various inlet frontal velocities (1~5 m/s) are shown and compared with the availableexperimental data.
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