Thermal Performance of a Single-row Fin-and-tube Heat Exchanger

作     者：ShengTANG Kwang-TzuYANG 

作者机构：BeijingInstituteofControlEngineeringBeijing100080China DepartmentofAerospaceandMechanlcalEngineeringUniversityofNotreDameNotreDameIN46556USA 

出 版 物：《Journal of Thermal Science》 (热科学学报（英文版）)

年 卷 期：2005年第14卷第2期

页      面：172-180页

核心收录：

学科分类：082502[工学-航空宇航推进理论与工程] 08[工学] 0825[工学-航空宇航科学与技术] 

基　　金：This research was under the support of Mr. D.K. Dorini and BRDG-TNDR Corporation  Fort Lauderdale  Florida  USA. We register our acknowledgments for their interest and support. Many thanks also go to Dr. Mihir Sen and Mr. Rodney L. McClain for their valuable help and discussion through this research project 

主　　题：Heat exchanger heat transfer correlations 

摘      要：Experiments were carried out to study the heat transfer characteristics of a single-row aluminum fin-and-tube crossflow heat exchanger with an emphasis in the regime of low flow rate of the in-tube fluid. The Chilton-Colburn analogy, in conjunction with the least-squares power-law technique, was used to correlate experimental data. Both air- and water-side heat transfer correlations were developed in the form of the Nusselt numbers as a function of Reynolds and Prandtl numbers. The experimental observations are quantitatively compared to the predictions of correlations available in the published literature. Different transfer mechanisms were found to be operative in the ranges of water-side Reynolds numbers based on the hydraulic diameter. In a range of Reynolds number from 1,200 to 6,000, the water-side thermal resistance accounts for less than ten percent of the overall thermal resistance. The dominant thermal resistance is always on the air-side. On the other hand, the thermal resistance of water-side is nearly equal to that of air-side in a Reynolds number range from 500 to 1,200.