化工学报Issue(2)：51-57,7.DOI:10.11949/j.issn.0438-1157.20140861
低熔点熔盐圆管内强迫对流换热
Forced convection heat transfer with low-melting point molten salt in circular pipe
摘要
Abstract
Molten salt as one of the most promising heat transfer and heat storage media in the concentrating solar power (CSP) system has such advantages as high and wide liquid temperature, good heat transfer performance, low operation pressure and good thermal stability. An experimental study on turbulent convective heat transfer with low-melting point molten salt in a circular tube was conducted by using a self-made parabolic trough solar collecting and heat transfer system with molten salt. The total heat transfer coefficients from water to salt in a concentric tube heat exchanger at different flow rates were obtained. The change of Nusselt number of low-melting point molten salt with Reynolds number was calculated with the least-square method and the experimental correlation were obtained. Comparison was also made between experimental data and well-known convective heat transfer correlations, with the maximum deviations between the present data and curves predicted by Dittus-Boelter, Colburn, Seider-Tate, and Gnielinski equations of+23%,+13%−10%and−20%respectively.关键词
低熔点熔盐/强迫对流/对流传热系数Key words
low-melting point molten salt/forced convection/convective heat transfer coefficient分类
能源科技引用本文复制引用
刘闪威,吴玉庭,崔武军,熊亚选,陈夏,鹿院卫,马重芳..低熔点熔盐圆管内强迫对流换热[J].化工学报,2015,(2):51-57,7.基金项目
国家自然科学基金国际(地区)合作与交流项目（51361135702）；国家重点基础研究发展计划项目（2011CB707202）。 （地区）
