Study on Particle Size Prediction of Sodium Atomization Based on Unstable Wave Theory

Xu Zhen; Hu Peizheng; Tong Lili; Cao Xuewu

doi:10.13832/j.jnpe.2023.06.0080

Volume 44 Issue 6

Dec. 2023

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Xu Zhen, Hu Peizheng, Tong Lili, Cao Xuewu. Study on Particle Size Prediction of Sodium Atomization Based on Unstable Wave Theory[J]. Nuclear Power Engineering, 2023, 44(6): 80-85. doi: 10.13832/j.jnpe.2023.06.0080

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Xu Zhen, Hu Peizheng, Tong Lili, Cao Xuewu. Study on Particle Size Prediction of Sodium Atomization Based on Unstable Wave Theory[J]. Nuclear Power Engineering, 2023, 44(6): 80-85. doi: 10.13832/j.jnpe.2023.06.0080

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Study on Particle Size Prediction of Sodium Atomization Based on Unstable Wave Theory

doi: 10.13832/j.jnpe.2023.06.0080

School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

Received Date: 2022-12-12
Rev Recd Date: 2023-05-11

Available Online: 2023-12-11

Publish Date: 2023-12-15

Abstract

Abstract

The particle size of sodium atomization is the key factor affecting the combustion intensity of sodium spray fire. Because of the unstable chemical properties of sodium, water is usually used to replace sodium to carry out atomization experiments, and it is necessary to obtain the particle size conversion relationship between them. In this paper, based on the unstable wave theory, the particle size similarity model of liquid atomization characterized by liquid physical parameters and atomization pressure difference is established. The applicability of the model is verified by different atomization experiments of various fluids from the perspectives of pressure difference and physical parameters. Furthermore, an experimental facility for water atomization using nozzle to simulate the crack is designed, the average particle size of water atomized droplets with pressure difference of 0.1~0.5 MPa is obtained, and the average particle size of sodium atomized droplets at 300~600℃ under different pressure differences is predicted. The particle size similarity model and the experimental device for sodium atomization simulation using water established in this paper can realize the prediction of sodium atomization particle size under different pressure differences, and provide reference for the research of Sodium atomization fire accidents.
- Sodium atomization,
- Water atomization,
- Similarity,
- Particle size model,
- Unstable wave waves

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References(18)

References

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