A Taguchi approach for determination of optimum design parameters for a heat exchanger having circular-cross sectional pin fins

被引：0
作者：
Bayram Sahin
机构：
[1] Ataturk University,Department of Mechanical Engineering, Faculty of Engineering
来源：
Heat and Mass Transfer | 2007年 / 43卷
关键词：
Heat Transfer; Reynolds Number; Nusselt Number; Friction Factor; Heat Transfer Rate;
D O I：
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学科分类号：
摘要：
The present work submits an investigation about the optimal values of design parameters and performance analysis for a heat exchanger having cylindrical pin fins positioned in a rectangular channel. The experiments covered the following range: Reynolds number 13,500–42,000, the clearance ratio (C/H) 0, 0.33 and 1, the interfin spacing ratio (Sy/D) 1.208, 1.944 and 3.417. In the experimentation, Taguchi method was employed, and Nusselt number and friction factor were considered as performance parameters. While the optimum parameters were determined, due to the goals (above aims) more than one being, the trade-off among goals was considered. First of all, each goal was optimized, separately. Then, all goals were optimized together, considering the priority of goals, and the optimum results were found to be Reynolds number of 42,000, fin height of 50 mm and pitch of 3.417. The performance analysis also was made under a constant pumping power constraint, and the results showed that the use of cylindrical pin fins may lead to an advantage on the basis of heat transfer enhancement.
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