Effect of baffles on the shell side heat transfer performance of a conical spiral tube bundle

被引：0
|
作者：
Ji J. [1 ]
Lu Y. [1 ]
Zhang J. [1 ]
Li F. [2 ]
Deng R. [1 ]
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 | 2023年 / 42卷 / 14期
关键词：
baffle; conical spiral elastic tube bundle (CSETB); heat exchanger; vibration-enhanced heat transfer;
D O I：
10.13465/j.cnki.jvs.2023.014.007
中图分类号：
学科分类号：
摘要：
Based on the conical spiral elastic tube bundle (CSETB) heat exchanger, an elastic bundle heat transfer equipment with higher heat transfer performance was obtained by installing the pulsating/drainage baffle plate in the heat exchanger. The vibration enhancement performances of the CSETB heat exchanger at different shell inlet velocities and in different structural schemes were studied by using the two-way fluid-structure coupling calculation method. The results show that the amplitude of the CSETB increases with the increase of inlet velocity, and if installing only a pulsating baffle plate, the CSETB shows relatively large high-frequency vibration, while if installing both the pulsating baffle plate and drainage baffle plate, the CSETB shows relatively large low frequency vibration. The installation of baffle plate can enhance the regularity of fluid flow and the stratified distribution of temperature field, and can greatly improve the heat transfer ability of the shell side of the heat exchanger. Vibration can enhance heat transfer, the degree of heat transfer enhancement is more obvious at high inlet velocity, and the installation of baffle plate can significantly improve the vibration enhanced heat transfer performance of the CSETB. In addition, the existence of drainage baffle reduces the comprehensive heat transfer performance of the heat exchanger. © 2023 Chinese Vibration Engineering Society. All rights reserved.
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页码：56 / 63
页数：7
相关论文
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