Model Study on Bubble Slide and Early-Stage Condensation Growth in Rectangular Narrow Channel

Zhang Lin; Liu Hanzhou; Liu Xiaojing; Chen Yong; Chen Deqi

doi:10.13832/j.jnpe.2023.02.0069

Volume 44 Issue 2

Apr. 2023

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Zhang Lin, Liu Hanzhou, Liu Xiaojing, Chen Yong, Chen Deqi. Model Study on Bubble Slide and Early-Stage Condensation Growth in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2023, 44(2): 69-76. doi: 10.13832/j.jnpe.2023.02.0069

Citation:

Zhang Lin, Liu Hanzhou, Liu Xiaojing, Chen Yong, Chen Deqi. Model Study on Bubble Slide and Early-Stage Condensation Growth in Rectangular Narrow Channel[J]. Nuclear Power Engineering, 2023, 44(2): 69-76. doi: 10.13832/j.jnpe.2023.02.0069

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Model Study on Bubble Slide and Early-Stage Condensation Growth in Rectangular Narrow Channel

doi: 10.13832/j.jnpe.2023.02.0069

1.
School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
2.
School of Energy and Power Engineering, Chongqing University, Chongqing, 400044, China

Received Date: 2022-05-11
Rev Recd Date: 2022-06-20
Publish Date: 2023-04-15

Abstract

Abstract

Bubble growth in rectangular narrow channel can directly change the phase interfacial area concentration and thus affect the flow channel's heat and mass transfer performance. In order to obtain a model for different types of bubble growth in a narrow flow channel, wall boiling flow heat transfer experiments are carried out based on a through-body visible test section. The bubble growth models are studied for both bubble slide and early-stage condensation conditions in subcooled boiling. The experimental results show that there are two forms of bubble growth, namely, bubble slide growth and early-stage condensation growth. Based on the heat transfer energy equation, the bubble growth models under the two conditions are established, and it is verified through the experimental data that the model error is within 20%. Therefore, this study can provide a more refined model of bubble growth for two-phase numerical simulation of boiling, thus improving the accuracy of bubble behavior prediction.
- Early-stage condensation growth,
- Bubble slide growth,
- Four-sided visualization,
- Wall boiling,
- Experimental study

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References(14)

References

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