Investigation on Heat Transfer Enhancement of Special-shaped Tubes in the Intermediate Heat Exchanger of a High Temperature Gas-cooled Reactor

被引：0

作者：

Hu, Qingxiang ^{[1
]}

Peng, Wei ^{[1
,2
]}

Gao, Yue ^{[1
]}

Wang, Jie ^{[1
,2
]}

机构：

[1] Institute of Nuclear and New Energy Technology, Advanced Nuclear Energy Technology Cooperation Innovation Center, Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Tsinghua University, Beijing,100084, China

[2] Tsinghua University-Zhang Jiagang Joint Institute for Hydrogen Energy and Lithium-Ion Battery Technology, Tsinghua University, Beijing,100084, China

来源：

Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics | 2023年 / 44卷 / 07期

关键词：

Gas cooled reactors - Heat exchangers - Heat transfer - High temperature gas reactors;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In the present study, the enhanced heat transfer performance and mechanism of two types of special-shaped tubes (transversely corrugated tubes and helically corrugated tubes) used in the intermediate heat exchanger of a high temperature gas-cooled reactor are investigated using three-dimensional numerical simulations. The results show that when the dimensionless corrugation height (e/d) and dimensionless corrugation pitch (p/d) are the same, the transversely corrugated tubes have better enhanced heat transfer performance, the Nusselt number is increased by up to 85%; The helically corrugated tubes have better comprehensive performance, the PEC is up to 1.08. The enhanced heat transfer mechanism of the two special-shaped tubes is that the corrugation enhances the turbulent pulsation of the fluid, and the enhancement effect of the transversely corrugated tube is more effective. © 2023 Science Press. All rights reserved.

引用

页码：1935 / 1942