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Huang Gaofeng, Gong Yu, Fu Tingzao, Wang Jiayun, Zhang Kun, Fang Likai. Study on Local Three Dimension Hydrogen Risk Using GOTHIC[J]. Nuclear Power Engineering, 2020, 41(6): 19-23.
Citation: Huang Gaofeng, Gong Yu, Fu Tingzao, Wang Jiayun, Zhang Kun, Fang Likai. Study on Local Three Dimension Hydrogen Risk Using GOTHIC[J]. Nuclear Power Engineering, 2020, 41(6): 19-23.

Study on Local Three Dimension Hydrogen Risk Using GOTHIC

  • Publish Date: 2020-12-15
  • Integrated severe accident code is used to analyze the hydrogen risk in current safety assessment. After Fukushima accident, higher requirements are placed on hydrogen risk analysis. In order to supplement the lumped parameter analysis, three dimension hydrogen risk analysis method using GOTHIC is studied. Local three dimension hydrogen risk model is constructed by GOTHIC. Based on model validation, typical severe accident cases are chosen to analyze the hydrogen distribution. The results show that, hydrogen and other gas are mixed well in the upper compartment of the containment, and hydrogen stratification phenomenon is not obvious. For DVI rupture accident in PXS-B, the lower area of the break is flooded, and the hydrogen concentration for the upper area of the break is large, however, the hydrogen risk is little. 

     

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