Numerical simulation of erosion characteristics of H-type finned elliptical tubes

被引：0

作者：

Wu, Jin-Xing ^{[1
]}

Ma, Yu-Xiang ^{[1
]}

Xiao, Jia-Bang ^{[1
]}

Xu, Yao ^{[1
]}

Li, Song-Ge ^{[1
]}

机构：

[1] School of Mechanical and Power Engineering, Zhengzhou University, Zhengzhou

来源：

Jilin Daxue Xuebao (Gongxueban)/Journal of Jilin University (Engineering and Technology Edition) | 2024年 / 54卷 / 09期

关键词：

elliptical tube bundle; flue gas waste heat utilization; H-type finned tube; numerical simulation;

D O I：

10.13229/j.cnki.jdxbgxb.20230458

中图分类号：

学科分类号：

摘要：

To determine the repair cycle of H-shaped finned elliptical tubes，a discrete phase model DPM was used to conduct three-dimensional numerical simulation of smoke erosion of H-shaped finned elliptical tubes and obtain the wear characteristics of the wall. And the wear law of the main pipe wall and the fin wall surface due to the ratio of long to short axis，fin thickness，and fin pitch was studied. The results show that the wear rate of the main pipe wall and fins increases with the ratio of the long and short axes，and the fin pitch increases，showing a continuous decreasing trend in wear rate. As the thickness of the fins increases，the wear rate of the fin wall surface continuously increases. By changing the fin spacing，the wear rate of the base tube wall can be reduced by 46%. By changing the thickness of the fins，the wear rate of the fin wall can be increased by 212%. © 2024 Editorial Board of Jilin University. All rights reserved.

引用

页码：2495 / 2501

页数：6

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