Experimental Study on Effect of Subcooling Degree and Roughness on Quenching Boiling of FeCrAl Plate

Zhang Qiqi; Luo Yan; Lu Tao; Deng Jian; Zhang Xilin; Zhou Zhaochun

doi:10.13832/j.jnpe.2022.05.0109

Volume 43 Issue 5

Oct. 2022

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Article Navigation > Nuclear Power Engineering > 2022 > 43(5): 109-114

Zhang Qiqi, Luo Yan, Lu Tao, Deng Jian, Zhang Xilin, Zhou Zhaochun. Experimental Study on Effect of Subcooling Degree and Roughness on Quenching Boiling of FeCrAl Plate[J]. Nuclear Power Engineering, 2022, 43(5): 109-114. doi: 10.13832/j.jnpe.2022.05.0109

Citation:

Zhang Qiqi, Luo Yan, Lu Tao, Deng Jian, Zhang Xilin, Zhou Zhaochun. Experimental Study on Effect of Subcooling Degree and Roughness on Quenching Boiling of FeCrAl Plate[J]. Nuclear Power Engineering, 2022, 43(5): 109-114. doi: 10.13832/j.jnpe.2022.05.0109

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Experimental Study on Effect of Subcooling Degree and Roughness on Quenching Boiling of FeCrAl Plate

doi: 10.13832/j.jnpe.2022.05.0109

1.
College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
2.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-09-30
Rev Recd Date: 2021-10-22
Publish Date: 2022-10-12

Abstract

Abstract

In order to investigate the effect of subcooling degree and surface roughness on the quenching boiling process of FeCrAl plate, a visual experimental study is carried out on the quenching boiling process of FeCrAl plate under different subcooling degree and surface roughness. The temperature inside the plate is measured by thermocouple, and the surface temperature and heat flux of the plate are solved analytically by using the inverse problem of heat conduction; Through the comparative analysis of the experimental phenomena, the effect of subcooling degree and surface roughness on the plate quenching boiling process is investigated, and the relationship between subcooling degree and the minimum film boiling temperature is established. The results show that during the quenching boiling process, the Kelvin-Helmholtz unstable wave is formed on the surface of the plate, and the sudden cooling front caused by the rupture of the gas film is in the shape of “parabola”. With the increase of subcooling degree, the minimum film boiling temperature and critical heat flux increase, the cooling rate of plate surface increases, and the duration of quenching boiling process shortens; Larger surface roughness can promote the progress of quench boiling on flat surfaces but the effect is small.
- FeCrAl Plate, Roughness,
- Subcooling degree,
- Quenching boiling,
- Minimum film boiling temperature

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References(11)

References

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