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Abstract <p>The article presents the results of an analysis and generalization of Russian and foreign experimental programs for the study of the flammability limits in hydrogen-containing mixtures as applied to hydrogen issues at nuclear power plants (NPPs) with VVER during severe accidents. On the basis of the experience of modeling severe accidents for various VVER NPP projects (VVER-1000/1200/TOI), the typical range of values of parameters of hydrogen mixtures in the containment atmosphere is estimated. Recommendations are given for estimating the upper and lower flammability limits for mixtures containing hydrogen and carbon monoxide, including oxygen-lean mixtures. The results of this work are relevant for the assessment of hydrogen hazards at NPPs, including the development, validation, and application of dedicated computer codes.</p>

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Criteria for Evaluating the Combustion Modes of Mixtures Containing H2 and CO in NPP Containments: Part I. Flammability

  • 期刊论文

  • 发表日期：

    2025年12月1日

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  • T. A. Yudina,
  • A. E. Kiselev,
  • V. N. Semenov,
  • A. I. Gavrikov,
  • A. V. Kosheev,
  • A. V. Avdeenkov,
  • E. V. Bezgodov,
  • V. A. Simonenko,
  • O. V. Shultz,
  • I. A. Melnikov,
  • Yu. A. Zvonarev

摘要

Abstract

The article presents the results of an analysis and generalization of Russian and foreign experimental programs for the study of the flammability limits in hydrogen-containing mixtures as applied to hydrogen issues at nuclear power plants (NPPs) with VVER during severe accidents. On the basis of the experience of modeling severe accidents for various VVER NPP projects (VVER-1000/1200/TOI), the typical range of values of parameters of hydrogen mixtures in the containment atmosphere is estimated. Recommendations are given for estimating the upper and lower flammability limits for mixtures containing hydrogen and carbon monoxide, including oxygen-lean mixtures. The results of this work are relevant for the assessment of hydrogen hazards at NPPs, including the development, validation, and application of dedicated computer codes.