Study on CHF Mechanistic Model in Upflow Boiling Vertical Round Tube under High Pressure

Liu Wei; Peng Shinian; Jiang Guangming; Liu Yu; Shan Jianqiang

doi:10.13832/j.jnpe.2018.06.0172

Volume 39 Issue 6

Dec. 2018

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Liu Wei, Peng Shinian, Jiang Guangming, Liu Yu, Shan Jianqiang. Study on CHF Mechanistic Model in Upflow Boiling Vertical Round Tube under High Pressure[J]. Nuclear Power Engineering, 2018, 39(6): 172-177. doi: 10.13832/j.jnpe.2018.06.0172

Citation:

Liu Wei, Peng Shinian, Jiang Guangming, Liu Yu, Shan Jianqiang. Study on CHF Mechanistic Model in Upflow Boiling Vertical Round Tube under High Pressure[J]. Nuclear Power Engineering, 2018, 39(6): 172-177. doi: 10.13832/j.jnpe.2018.06.0172

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Study on CHF Mechanistic Model in Upflow Boiling Vertical Round Tube under High Pressure

doi: 10.13832/j.jnpe.2018.06.0172

1. Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China;
2. School of Nuclear Science and Technology, Xi'an Jiaotong University, Xi'an, 710049, China

Received Date: 2018-01-08
Rev Recd Date: 2018-10-20

Abstract

Abstract

According to the characteristics of DNB type CHF under high pressure, the constitutive correlations of Weisman & Pei model are proposed. The prediction results of three entrainment and deposition correlations of Kataoka, Celata and Hewitt corresponding to the Dry-out type CHF are analyzed. Based on the two improved models above, a comprehensive CHF mechanistic model under high pressure condition combined the DNB and Dry-out type boiling crisis is established. The verification based on the experiment database of upflow boiling in vertical round tube and the parametric trends analysis of CHF with thermal-hydraulic and geometric parameters are carried out.
- High pressure,
- Round tube,
- Upflow boiling,
- CHF mechanistic model