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Comparison of heat transfer performance of tube bank fin with mounted vortex generators to tube bank fin with punched vortex generators
Affiliation:1. Department of Mechanical Engineering, National Chiao Tung University, Hsinchu 300, Taiwan;2. Department of Mechanical Engineering, Yuan Ze University, Taoyuan, Taiwan;1. Key Laboratory of Thermo-Fluid Science and Engineering, MOE, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, China;2. Department of Energy Sciences, Faculty of Engineering, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden;1. School of Mechanical Engineering, Lanzhou Jiaotong University, Lanzhou, Gansu, 730070, China;2. Department of Aeronautics and Astronautics, Tokyo Metropolitan University, Hino, Tokyo, 191-0065, Japan;1. Department of Mechanical Engineering, National Cheng-Kung University, Tainan 70101, Taiwan;2. Department of Mechanical Engineering, Air Force Institute of Technology, Kaohsiung 82042, Taiwan;1. MOE Key Laboratory of Condition Monitoring and Control for Power Plant Equipment, North China Electric Power University, Beijing 102206, China;2. Department of Mechanical and Aerospace Engineering, University of Missouri, Columbia, MO 65211, USA
Abstract:The results obtained from naphthalene sublimation heat/mass analogy experiments in selecting the optimum geometrical parameters of tube bank fin heat exchanger with fins mounted with vortex generators are compared with the results obtained from the condensing experiments of the real heat exchangers with vortex generators punched out on the fins. The results declare that VGs pouched or mounted on fin surfaces have only limited effects on heat transfer performance in the studied configurations; naphthalene sublimation method can be used to select fin patterns with reasonable reliability.
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