A product analysis-based study on the mechanism of inflammable gas explosion suppression

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27200%2F21%3A10246137" target="_blank" >RIV/61989100:27200/21:10246137 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.jlp.2020.104311" target="_blank" >https://doi.org/10.1016/j.jlp.2020.104311</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jlp.2020.104311" target="_blank" >10.1016/j.jlp.2020.104311</a>

Result language

angličtina

Original language name

A product analysis-based study on the mechanism of inflammable gas explosion suppression

Original language description

To study the mechanism of the suppressing effect of Expanded Aluminium (EA) on the premixed gas explosion, premixed methane-air and propane-air gases were undergone explosion reaction in the presence of EA in a self-designed closed pipeline with the overpressures and the compositions, rates and sensitivities of products analyzed. The results showed that the 9.5% methane-air and 5% propane-air explosions produced peak pressures decreased by 79.3% and 65.6%, and residual methane and propane contents increased by 270% and 560% respectively than without EA. In addition, the results revealed that the explosions of propane in the presence of EA produced less methane and carbon oxides contents, but more ethylene and propylene contents. The simulation showed that [rad]H, [rad]O, and [rad]OH are the key factors affecting the rate of products. The product compositions, together with other parameters, suggested that EA decreased temperature, inhibited chain initiation and propagation reaction, but facilitated chain termination reaction by advancing and accelerating the gas phase and wall destruction reaction of radicals, especially collisions and concentration of key free radicals. This new research method based on the analysis of explosion products can be used for in-depth research into gas explosion features and shed light on the suppressing mechanism of EA in flammable gas explosion. (C) 2020 Elsevier Ltd

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

21100 - Other engineering and technologies

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2021

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Loss Prevention in the Process Industries

ISSN

0950-4230

e-ISSN

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Volume of the periodical

69

Issue of the periodical within the volume

3

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

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UT code for WoS article

000624136500001

EID of the result in the Scopus database

2-s2.0-85097764716