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Mathematical Modeling of Gas-Phase Radiolysis of Mixtures of Hydrogen, Nitrogen, Oxygen, and Their Compounds.

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Title: Mathematical Modeling of Gas-Phase Radiolysis of Mixtures of Hydrogen, Nitrogen, Oxygen, and Their Compounds.
Authors: Sazonov, A. B.1 (AUTHOR), Grachev, V. A.1 (AUTHOR) Grachev_VA@nrcki.ru, Bystrova, O. S.1 (AUTHOR), Frolova, A. V.1 (AUTHOR)
Source: High Energy Chemistry. Aug2025, Vol. 59 Issue 4, p377-390. 14p.
Subjects: Mathematical models, Hydrogen, Hydrogen flames, Nitrogen, Nuclear energy safety measures, Ionizing radiation, Oxygen
Abstract: A mathematical model of radiation-induced transformations in vapor–gas mixtures containing hydrogen, nitrogen, oxygen, and their compounds is presented. In accordance with the array of experimental data used in verification, the model adequately describes the directions and rates of processes in the temperature range from 0 to ~250°C, the pressure from 1 kPa to 0.2 MPa (in some cases up to ~5 MPa), and the absorbed dose rate up to 103−104 Gy/s over an unlimited time interval. The model can be used as a tool for performing fast calculations with wide sets of external parameters and initial conditions: when assessing the consequences of design and beyond-design-basis accidents at water-cooled nuclear power plants, as well as when substantiating hydrogen explosion safety at facilities with ionizing radiation sources. [ABSTRACT FROM AUTHOR]
Copyright of High Energy Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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PubType: Academic Journal
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  Data: Mathematical Modeling of Gas-Phase Radiolysis of Mixtures of Hydrogen, Nitrogen, Oxygen, and Their Compounds.
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  Data: <searchLink fieldCode="JN" term="%22High+Energy+Chemistry%22">High Energy Chemistry</searchLink>. Aug2025, Vol. 59 Issue 4, p377-390. 14p.
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  Data: A mathematical model of radiation-induced transformations in vapor–gas mixtures containing hydrogen, nitrogen, oxygen, and their compounds is presented. In accordance with the array of experimental data used in verification, the model adequately describes the directions and rates of processes in the temperature range from 0 to ~250°C, the pressure from 1 kPa to 0.2 MPa (in some cases up to ~5 MPa), and the absorbed dose rate up to 103−104 Gy/s over an unlimited time interval. The model can be used as a tool for performing fast calculations with wide sets of external parameters and initial conditions: when assessing the consequences of design and beyond-design-basis accidents at water-cooled nuclear power plants, as well as when substantiating hydrogen explosion safety at facilities with ionizing radiation sources. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of High Energy Chemistry is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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      – SubjectFull: Hydrogen flames
        Type: general
      – SubjectFull: Nitrogen
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      – SubjectFull: Nuclear energy safety measures
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      – SubjectFull: Ionizing radiation
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              Text: Aug2025
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