Experimental Research on Effect of Aerosol in Liquid Pool on Size of Bubbles from Submerged Orifice

Zhang Jibin; Lyu Huanwen

doi:10.13832/j.jnpe.2021.05.0245

Volume 42 Issue 5

Sep. 2021

Turn off MathJax

Article Contents

Article Navigation > Nuclear Power Engineering > 2021 > 42(5): 245-249

Zhang Jibin, Lyu Huanwen. Experimental Research on Effect of Aerosol in Liquid Pool on Size of Bubbles from Submerged Orifice[J]. Nuclear Power Engineering, 2021, 42(5): 245-249. doi: 10.13832/j.jnpe.2021.05.0245

Citation:

Zhang Jibin, Lyu Huanwen. Experimental Research on Effect of Aerosol in Liquid Pool on Size of Bubbles from Submerged Orifice[J]. Nuclear Power Engineering, 2021, 42(5): 245-249. doi: 10.13832/j.jnpe.2021.05.0245

Citation:

PDF( 2857 KB)

Experimental Research on Effect of Aerosol in Liquid Pool on Size of Bubbles from Submerged Orifice

doi: 10.13832/j.jnpe.2021.05.0245

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China.

Received Date: 2020-07-13
Rev Recd Date: 2020-11-23
Publish Date: 2021-09-30

Abstract

Abstract

The bubble formation from a submerged orifice in a liquid pool is an important phenomenon in the filtration and discharge process of gas in the containment. During filtration, the size of bubbles from the submerged orifice directly affects the rising speed and the gas-liquid contact area of the bubbles, and thus is one of the important parameters affecting the filter filtration efficiency. As the filtration proceeds, the aerosol content in the liquid pool, among others, may affect the bubble size. This paper conducts a visual experiment to study the bubble formation from a submerged orifice in a liquid pool containing BaSO₄ or TiO₂ aerosol and to observe and analyze the change law of the size of bubble from the submerged orifice, thus to gain the mechanism of the effect of aerosol on size of bubble from the submerged orifice. The results show that high temperature liquid pool and TiO₂ can increase the bubble size, but adding BaSO₄ has no obvious effect. Also, the experiment shows the presence of “small air cavity” on the top of the bubbles formed, and the changes of surface tension and “small air cavity” form the main change mechanism of bubble size.
- Aerosol,
- Bubble,
- Orifice,
- Temperature,
- Surface tension

FullText(HTML)

References(13)

References

[1]	VAN KREVELEN D W, HOFTIJZER P J. Studies of gas-bubble formation: calculation of interracial area in bubble contactors[J]. Chemical Engineering Progress, 1950, 46(1): 29-35.
[2]	DAVIDSON J F, SCHÜLER B O G. Bubble formation at an orifice in a viscous liquid[J]. Chemical Engineering Research and Design, 1997, 75 Suppl 1: S105-S115.
[3]	GERLACH D, BISWAS G, DURST F, et al. Quasi-static bubble formation on submerged orifices[J]. International Journal of Heat and Mass Transfer, 2005, 48(2): 425-438. doi: 10.1016/j.ijheatmasstransfer.2004.09.002
[4]	魏楠,吴晅,薄宇轩,等. 气泡在颗粒床层表面的生成脱离行为[J]. 化工进展,2021, 40(2): 678-687.
[5]	田震. 高温高压鼓泡塔中气泡运动的实验观察与数值模拟[D]. 杭州: 浙江大学, 2019.
[6]	BABU R, DAS M K. Effects of surface-active agents on bubble growth and detachment from submerged orifice[J]. Chemical Engineering Science, 2018, 179: 172-184. doi: 10.1016/j.ces.2018.01.028
[7]	李应治,周艳民,孙中宁,等. 鼓泡过滤可溶性气溶胶特性实验研究[J]. 核动力工程,2019, 40(S2): 21-25.
[8]	ATA S, NG K Y, LAW E, et al. Influence of particles on the formation of bubbles from a submerged capillary[J]. Minerals Engineering, 2014, 66: 47-53. doi: 10.1016/j.mineng.2014.03.018
[9]	李应治. 单孔鼓泡特性的可视化实验研究[D]. 哈尔滨: 哈尔滨工程大学, 2017.
[10]	汤华鹏,温济铭,谷海峰. 基于高速摄影测量气泡体积的图像处理技术研究[J]. 应用科技,2019, 46(2): 108-115.
[11]	DAVIDSON J F, SCHUELER B O G. Bubble formation at an orifice in an inviscid liquid[J]. Transactions of the Institution of Chemical Engineers, 1960(38): 335-342.
[12]	PAN W T, CHEN X L, DAI G C, et al. Enhanced effect of bubble deformation on internal particle transport[J]. Industrial & Engineering Chemistry Research, 2020, 59(2): 905-918.
[13]	马航海. 简明工程流体力学[M]. 武汉: 武汉大学出版社, 2016: 6-11.