Experimental Investigation of Heat Transfer Performance of Molten Salt in Double-pipe Heat Exchanger

被引：0

作者：

Dong X. ^{[1
]}

Bi Q. ^{[1
]}

Jiang M. ^{[1
]}

机构：

[1] State Key Laboratory of Multiphase Flow in Power Engineering (Xi'an Jiaotong University), Xi'an

来源：

Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2021年 / 41卷 / 19期

关键词：

Correlations; Double-pipe heat exchanger; Heat transfer performances; Solar salt; Subcooled boiling;

D O I：

10.13334/j.0258-8013.pcsee.200539

中图分类号：

学科分类号：

摘要：

Molten salt steam generator is an integral heat transfer device in concentrated solar power (CSP) systems. In this study, a binary salt mixture (60% NaNO3 and 40% KNO3) was used as the working substance to study the shell-side heat transfer performance of solar salt and subcooled boiling water in a double-pipe heat exchanger. The experimental results show that the shell-side heat transfer coefficient in the heat exchanger is affected by water pressure, water and solar salt flow fluxes, and molten salt inlet temperature. In addition, multiple linear regression was performed based on the experimental data to obtain the experimental correlation for the heat transfer coefficients of solar salt; the maximum fitting errors was ±10%. The experimental data were compared to the empirical Grimson equations, the maximum fitting errors was -20%. © 2021 Chin. Soc. for Elec. Eng.

引用

页码：6670 / 6678

页数：8

共 24 条

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