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http://dx.doi.org/10.1016/j.net.2019.08.023

Effects of included angle on pool boiling of tube array having horizontal upper tube  

Kang, Myeong-Gie (Department of Mechanical Engineering Education, Andong National University)
Publication Information
Nuclear Engineering and Technology / v.52, no.3, 2020 , pp. 530-537 More about this Journal
Abstract
This study investigates the effect of an included angle and heat flux on heat transfer of V-shape tube array having a horizontal upper tube. The test uses two stainless steel tubes with a smooth surface submerged under the water at atmospheric pressure. The angle varies from 2° to 24°. The heat transfer coefficient gets decreasing in consequence as the angle increases. The enhancement due to the lower tube is distinct as the heat flux is lower than 60 kW/㎡, where the effect of the convective flow is dominant. The present study and the published results show a similar tendency. Although the heat transfer coefficient for the present study is smaller than the symmetry case, enhanced heat transfer is observed compared to the tube array having a lower horizontal tube as the included angle is less than 10°.
Keywords
Pool boiling; Tube array; V-shape tube; Advanced reactors; Included angle;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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