Experimental investigation on enhanced heat transfer in transversally corrugated tube with molten salt

被引：33

作者：

Chen, Cong

Wu, Yu-Ting ^{[1
]}

Wang, Shu-Tao

Ma, Chong-Fang

机构：

[1] Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Coll Environm & Energy Engn, Beijing 100124, Peoples R China

来源：

EXPERIMENTAL THERMAL AND FLUID SCIENCE | 2013年 / 47卷

基金：

中国国家自然科学基金;

关键词：

Molten salt; Enhanced heat transfer; Transversally corrugated tube; Concentrating solar power;

D O I：

10.1016/j.expthermflusci.2013.01.006

中图分类号：

O414.1 [热力学];

学科分类号：

070201 [理论物理];

摘要：

Experimental study was performed for enhanced heat transfer of mixed molten Hitec salts in transversally corrugated tubes with three different sets of structural parameters. A general correlation was obtained for transversally corrugated tubes, the maximum deviation between fitting correlation and the experimental data is +17%. The variation of drag coefficient vs. Re number was determined in the smooth tube and transversally corrugated tubes, the drag coefficient for transversally corrugated tubes is larger than that for smooth tube. Based on comparison of three kind criterions, the comprehensive enhanced effect of the transverselly corrugated tube with P = 9 is higher than that of P = 5 and P = 16. (C) 2013 Elsevier Inc. All rights reserved.

引用

页码：108 / 116

页数：9

共 12 条

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Allman W. A., 1988, J SOL ENERGY ENG, V2, P5

[2]

Jia T., 1990, J CHEM IND ENG, V5, P612

[3]

Turbulent convective heat transfer with molten salt in a circular pipe [J].