文献类型：期刊文献

英文题名：Experimental study of heat transfer outside C-shaped tube in water tank

作者：Liu, Yanbin[1];Wang, Xuesheng[1];Men, Qiming[1];Meng, Xiangyu[1]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：135

外文期刊名：ANNALS OF NUCLEAR ENERGY

收录：;EI(收录号：20193407327426);WOS:【SCI-EXPANDED(收录号:WOS:000496898500039)】；

语种：英文

外文关键词：C-shaped tube; Heat transfer; Experimental study; Bubbles; Empirical correlations

摘要：Experimental system was set up to study the heat transfer performance outside the C-shaped tube in water tank. Thermal oil and desalted water were chosen as tube inside and outside fluid separately and a series of experiments were performed. Experimental data show that in the vertical direction tank water temperature stratification occurs during the heating process and in the horizontal direction tank water temperatures keep nearly uniform. The changing regularity between tube outside wall temperature and tank water temperature is analyzed. Bubble movement is also photographed and it plays an important role in boiling heat transfer. Nusselt number and heat flux of the horizontal and vertical tube units at three representative times are calculated and agree well with the results based on McAdams natural convection correlations, Rohsenow subcooled and saturation boiling correlations, which can provide a basis for the heat transfer calculation of heat exchangers of this kind. (C) 2019 Elsevier Ltd. All rights reserved.