Study of the dimensioning of ATEX formed in the case of leakage of H2-N2 mixtures from pressurized ducts - Ineris - Institut national de l'environnement industriel et des risques Access content directly
Conference Papers Year : 2010

Study of the dimensioning of ATEX formed in the case of leakage of H2-N2 mixtures from pressurized ducts

Etude de dimensionnement des ATEX formées en cas de fuite de mélanges H2-N2 issus de canalisations sous pression

Abstract

The methods implemented by EDF-SEPTEN (Electricité de France - Department of Thermic and Nuclear Studies and Project) of Basic Nuclear Installations (BNI) in Nuclear Electricity Power Stations (NEPS) requires the implementation of pressurized hydrogen. Within the scope of a study on safety, hypothetical leaks are investigated, leading to the formation of explosive atmosphere (ATEX); the intention here is to evaluate their dangerousness. The present publication deals with the establishment of a simplified model in order to determine the XLEL [distance on the axis of the leak jet, where a concentration is reached equal to the Lower Explosive Limit (LEL)] and VATEX (volume of the locus of the spatial points where the concentration is greater than or equal to LEL) parameters for typical H2-N2 mixture leaks.
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Dates and versions

ineris-00976220 , version 1 (09-04-2014)

Identifiers

  • HAL Id : ineris-00976220 , version 1

Cite

Jacques Chaineaux, Sébastien Evanno, Bernard Gautier. Study of the dimensioning of ATEX formed in the case of leakage of H2-N2 mixtures from pressurized ducts. AIChE Spring Meeting 2010 & 6. Global Congress on Process Safety (GCPS), Mar 2010, San Antonio, United States. ⟨ineris-00976220⟩

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