Structural Design and Performance Analysis of New Micro Convex Fins in Plate-fin Heat Exchangers

被引：0
|
作者：
Peng X. [1 ,2 ]
Li D. [1 ]
Li J. [1 ]
Jiang S. [1 ]
机构：
[1] College of Mechanical Engineering, Zhejiang University of Technology, Hangzhou
[2] State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, Hangzhou
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 13期
关键词：
Heat transfer performance; Micro convex fin; Plate-fin heat exchanger; Structural design;
D O I：
10.3969/j.issn.1004-132X.2021.13.015
中图分类号：
学科分类号：
摘要：
In order to improve heat transfer efficiency in fin regions and the overall heat transfer performance of plate-fin heat exchangers, a new micro convex fin structure was proposed. An approximate model was constructed based on the simulation results of thermodynamic performance at multiple sampling points of the structure parameters. With the total heat transfer rate as optimization objective and the pressure drop as the constraint, the optimum structure parameters (micro convex height, micro convex angle, micro convex opening length) of micro convex were determined by using sequential quadratic programming algorithm. And the arrangement spaces and arrangement type of micro convex were optimized to determine the specific parameters of improved micro convex fin structures. Through the temperature and pressure field analysis of fin channels, and the comparison of heat transfer performance with the same size of straight fin, the effectiveness of the new micro convex fin structure was verified. © 2021, China Mechanical Engineering Magazine Office. All right reserved.
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页码：1630 / 1637
页数：7
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