Pool Boiling Heat Transfer on Multi-Scale Porous Surfaces

被引：0

作者：

Zheng, Xiaohuan ^{[1
]}

Ji, Xianbing ^{[1
]}

Wang, Ye ^{[1
]}

Xu, Jinliang ^{[1
]}

Huang, Yanping ^{[2
]}

Li, Yong ^{[2
]}

机构：

[1] Beijing Key Laboratory of Multiphase Flow and Heat Transfer, North China Electric Power University, Beijing,102206, China

[2] CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu,610041, China

来源：

Hedongli Gongcheng/Nuclear Power Engineering | 2017年 / 38卷 / 02期

关键词：

Deionized water - Pore size - Sintering - Atmospheric pressure - Heat flux;

D O I：

10.13832/j.jnpe.2017.02.0179

中图分类号：

学科分类号：

摘要：

In order to improve the nuclear boiling heat transfer, a multi-scale porous surface was prepared by sintering the copper particles. A series of pool boiling experiments on different heater surfaces were conducted using deionized water as working fluid at atmospheric pressure. The effects of surface structure, liquid temperature, heat flux and surface superheat on the pool boiling heat transfer were investigated. The results showed that the multi-scale surface can perfectly meet the different demands for pore size between vapor release and liquid suction. For multi-scale surface, The surface superheat at the onset of nuclear boiling was decreased significantly and heat flux was expanded. Compared to that of a plain surface, the boiling heat transfer coefficient can be improved 5 to 6 times. © 2017, Editorial Board of Journal of Nuclear Power Engineering. All right reserved.

引用

页码：179 / 183