Evaluation of Condensation Heat Transfer Coefficient of Stable Steam Jet Submerged in Water

Wang Jue; Chen Lisheng; Liu Jiange; Hu Chen; Cai Qi

doi:10.13832/j.jnpe.2021.04.0027

Volume 42 Issue 4

Aug. 2021

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Wang Jue, Chen Lisheng, Liu Jiange, Hu Chen, Cai Qi. Evaluation of Condensation Heat Transfer Coefficient of Stable Steam Jet Submerged in Water[J]. Nuclear Power Engineering, 2021, 42(4): 27-32. doi: 10.13832/j.jnpe.2021.04.0027

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Wang Jue, Chen Lisheng, Liu Jiange, Hu Chen, Cai Qi. Evaluation of Condensation Heat Transfer Coefficient of Stable Steam Jet Submerged in Water[J]. Nuclear Power Engineering, 2021, 42(4): 27-32. doi: 10.13832/j.jnpe.2021.04.0027

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Evaluation of Condensation Heat Transfer Coefficient of Stable Steam Jet Submerged in Water

doi: 10.13832/j.jnpe.2021.04.0027

Wang Jue^{1, 2
,},
Chen Lisheng¹,
Liu Jiange²,
Hu Chen²,
Cai Qi¹

1.
College of Nuclear Science and Technology, Naval University of Engineering, Wuhan, 430033, China
2.
Wuhan Second Ship Design and Research Institute, Wuhan, 430064, China

Received Date: 2020-06-04
Rev Recd Date: 2020-08-16
Publish Date: 2021-08-15

Abstract

Abstract

In order to analyze the heat transfer characteristics of a stable submerged steam jet, three types of condensation heat transfer coefficients (HTCs) were evaluated. The results show that the accuracy of the experimental values of the average HTC is mainly influenced by the calculation of the interfacial area, and the traditional semiempirical correlation (characterized by the condensation driving potential and the steam mass flux) has a large deviation from the prediction at different discharge diameters. A fully-empirical correlation with a wider applicable range can be obtained by adding the discharge diameter as independent fitting variable, and the discrepancy between prediction and experimental data is within ±30%. The accuracy of the interfacial HTC is mainly influenced by the microscopic parameters of the steam plume. The dimensionless HTC (characterized by the dominant frequency of pressure oscillation) deviates significantly from the experimental value at low water subcooling, and the predicted trend is similar to the experimental value when the steam plume penetration length is fitted in the correlation.
- Submerged steam jet,
- Condensation heat transfer,
- Steam plume penetration length,
- Average heat transfer coefficient

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References(15)

References

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