Heat transfer characteristics of a short helical plate in a horizontal circular tube

被引：0
作者：
Tae-Hyun Chang
Kwon-Soo Lee
Ki-Won Chang
Sang Min Kim
Chang-Hoan Lee
机构：
[1] Kyungnam University,Department of Mechanical Engineering
[2] International University of Korea,undefined
[3] DongHwan Ind. Corp.,undefined
[4] Taesung Daejeon Office 515,undefined
[5] Hanshin S-Meca,undefined
[6] Korea Institute of Science and Technology Information,undefined
来源：
Journal of Mechanical Science and Technology | 2019年 / 33卷
关键词：
Annulus; Helical plate; Swirling flow; Nusselt number; PIV;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Enhancement techniques based on artificial roughness are used in numerous applications of heat exchangers. Heat exchange devices are essential components in complex engineering systems, such as industrial energy generation and energy conversion. In this study, a short helical plate was used to enhance heat transfer in a horizontal circular annulus tube. Experiments and CFD were performed to study the heat transfer effect of the helical plate, and Teflon and brass materials were used for the helical plate. Uniform heat flux was considered, and particle image velocimetry (PIV) was used for comparisons. The Nusselt number profiles increased steeply around the Teflon helical plate and decreased suddenly to 1.0 along the test section.
引用
收藏
页码：3613 / 3620
页数：7
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