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传热学
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ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

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传热学

DOI: 10.1615/HeatTransRes.2018025269
pages 33-56

COUPLED HEAT TRANSFER ANALYSES OF MOLTEN SALT WITH VARIATION OF THERMOPHYSICAL PROPERTIES

Ziming Cheng
Harbin Institute of Technology at Weihai, Harbin Institute of Technology, 2 West Wenhua Road, Weihai 264209, P.R. China
Ruitian Yu
College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China
Fuqiang Wang
Harbin Institute of Technology at Weihai, Harbin Institute of Technology, 2 West Wenhua Road, Weihai 264209, P.R. China
Huaxu Liang
Harbin Institute of Technology at Weihai, Harbin Institute of Technology, 2 West Wenhua Road, Weihai 264209, P.R. China
Ming Xie
School of Energy Science and Engineering, Harbin Institute of Technology, 92 West Dazhi Street, Harbin 150001, P.R. China
Dong Li
School of Architecture and Civil Engineering, Northeast Petroleum University, Fazhan Lu Street, Daqing 163318, China
Jianyu Tan
Harbin Institute of Technology at Weihai, Harbin Institute of Technology, 2 West Wenhua Road, Weihai 264209, P.R. China

ABSTRACT

In this study, coupled heat transfer analysis of molten salt with variation of thermophysical properties was made. Radiative transfer and energy equations were solved by FEM using the codes compiled by the authors, while the mass and momentum conservation equations were solved by Fluent soft ware. Thereafter, the temperature distribution of the molten salt flowing in a tube receiver with/without considering radiative transfer was presented. The effects of scattering albedo, refractive index, and convective heat-transfer coefficient on the temperature distribution of the molten salt were investigated. The numerical results showed that the maximum deviations in the elevated temperature of the molten salt at the cross section x = 0.5 and fluid outlet surface are 39.8% and 50.7%, respectively, when the radiative heat transfer is neglected.


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