Experimental study of heat transfer enhancement for molten salt with transversely grooved tube heat exchanger in laminar-transition-turbulent regimes
Chen, YS; Tian, J; Fu, Y; Tang, ZF; Zhu, HH; Wang, NX
2018
发表期刊APPLIED THERMAL ENGINEERING
ISSN1359-4311
卷号132页码:95-101
文章类型期刊论文
摘要In an effort to develop a heat transfer enhancement technique for molten salt in heat exchanger, experiments are carried out to evaluate the heat transfer performance of transversely grooved tube using molten salt as the hot fluid flowing through the inner concentric tube within the Reynolds number from 300 to 60,000 and Prandtl number from 11 to 27. The effects of Reynolds number and Prandtl number on the thermal-hydraulic behavior in laminar, transition and turbulent flow are studied. Results show that transversely grooved tube will significantly enhance the heat transfer performance of molten salt and meanwhile decrease the critical Reynolds numbers of the transition from laminar flow to turbulent flow. For laminar flow and transition flow, heat transfer enhancement ratio relative to the smooth tube varies with the changing of Reynolds number and Prandtl number. While for the turbulent flow, the enhancement effect is almost independent on Reynolds number and Prandtl number. Finally, heat transfer correlations of molten salt in transversely grooved tube are proposed depending upon the flow regime and have good agreement with experiment data. Experimental results will provide valuable reference and greatly contribute to the practical design of molten salt heat exchanger with heat transfer enhancement techniques. (C) 2017 Elsevier Ltd. All rights reserved.
关键词Concentric Tube Corrugated Tubes Region Flow Roughness Reactor Channel Wall
DOI10.1016/j.applthermaleng.2017.12.054
收录类别SCI
语种英语
WOS记录号WOS:000426021800010
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/29014
专题中科院上海应用物理研究所2011-2018年
作者单位1.Chen, YS
2.Tian, J
3.Fu, Y
4.Tang, ZF
5.Zhu, HH
6.Wang, NX
推荐引用方式
GB/T 7714
Chen, YS,Tian, J,Fu, Y,et al. Experimental study of heat transfer enhancement for molten salt with transversely grooved tube heat exchanger in laminar-transition-turbulent regimes[J]. APPLIED THERMAL ENGINEERING,2018,132:95-101.
APA Chen, YS,Tian, J,Fu, Y,Tang, ZF,Zhu, HH,&Wang, NX.(2018).Experimental study of heat transfer enhancement for molten salt with transversely grooved tube heat exchanger in laminar-transition-turbulent regimes.APPLIED THERMAL ENGINEERING,132,95-101.
MLA Chen, YS,et al."Experimental study of heat transfer enhancement for molten salt with transversely grooved tube heat exchanger in laminar-transition-turbulent regimes".APPLIED THERMAL ENGINEERING 132(2018):95-101.
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