Analysis on the heat transfer characteristics of spiral elastic tube bundle heat exchangers with different cross section shapes

被引：0

作者：

Ji J. ^{[1
]}

Zhou R. ^{[1
]}

Gao R. ^{[1
]}

Zhang J. ^{[1
]}

Deng X. ^{[1
]}

Li F. ^{[2
]}

机构：

[1] School of Mechanical Engineering, Anhui University of Science and Technology, Huainan

[2] School of Artificial Intelligence, Anhui University of Science and Technology, Huainan

来源：

Zhendong yu Chongji/Journal of Vibration and Shock | 2022年 / 41卷 / 22期

关键词：

fluid structure coupling; heat exchanger; section shape; spiral elastic tube bundle; vibration-enhanced heat transfer;

D O I：

10.13465/j.cnki.jvs.2022.22.026

中图分类号：

学科分类号：

摘要：

In order to explore the influence of section shape on the heat transfer performance of a spiral elastic tube bundle (SKTB) heat exchanger, four section shapes (quadrilateral section, hexagonal section, elliptical section and circular section) were set up. By using the two-way Fluid structure coupling calculation method. The vibration and heat transfer characteristics of single-layer four SKTBs at different inlet velocities were studied. The results show that the vibration responses of SETBs with different cross-section shapes are obviously different at different installation position in the heat exchanger. The heat transfer coefficient of the SKTB with elliptical section is the highest under vibration and non-vibration conditions, and the local heat transfer coefficient on the circumference of the SETB with elliptical section is the largest. It is shown that the heat transfer performance is the best when the section shape of the SKTB is ellipse. Vibration can enhance heat transfer, but the heat transfer performance of the SKTB with severe vibration is not necessarily the best. Therefore, high-intensity vibration should no be blindly pursued in the design of the SETB heat exchanger, but the installation position and section shape of the SKTB should be comprehensively considered. © 2022 Chinese Vibration Engineering Society. All rights reserved.

引用

页码：219 / 225

页数：6

共 15 条

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