Experimental Study on Friction Coefficient of Supercritical Carbon Dioxide

被引：0
|
作者：
Wang P. [1 ]
Gong H. [2 ]
Zhang Y. [1 ,3 ]
Xie R. [1 ]
Ye K. [1 ]
Wu C. [1 ]
Lu G. [1 ]
Hong G. [1 ,3 ]
机构：
[1] College of Energy, Xiamen University, Xiamen
[2] Nuclear Power Institute of China, Chengdu
[3] Fujian Research Center for Nuclear Engineering, Xiamen
来源：
Hedongli Gongcheng/Nuclear Power Engineering | 2021年 / 42卷
关键词：
Friction coefficient correlation; Frictional pressure drop; Supercritical carbon dioxide (SCO[!sub]2[!/sub]);
D O I：
10.13832/j.jnpe.2021.S1.0033
中图分类号：
学科分类号：
摘要：
In order to explore the applicability and accuracy of friction coefficient correlations of supercritical carbon dioxide (SCO2), an experimental bench was built to measure the pressure drop of SCO2 flowing through a vertical heating tube. A new friction coefficient correlation was fitted through the experimental data. And the accuracy of seven correlations, which were commonly seen in the literature, was classified and compared. The results show that in the typical friction coefficient correlations, the frictional pressure drop calculated by the Swanee and Jain correlation is close to the experimental results, and the data which calculation deviation is within ±30% accounted for 76.1%. After a single thermophysical property modification of the typical friction coefficient correlations, the calculation accuracy of the frictional pressure drop can be improved to some extent, but the effect is limited. The newly proposed friction coefficient correlation is with the highest calculation accuracy, with the data deviation within ±30% accounting for up to 91.4% and the correlation coefficient up to 0.964, which can be used in engineering practice. Copyright ©2021 Nuclear Power Engineering. All rights reserved.
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页码：33 / 39
页数：6
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