A product analysis-based study on the mechanism of inflammable gas explosion suppression
Identifikátory výsledku
Kód výsledku v 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>
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
A product analysis-based study on the mechanism of inflammable gas explosion suppression
Popis výsledku v původním jazyce
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
Název v anglickém jazyce
A product analysis-based study on the mechanism of inflammable gas explosion suppression
Popis výsledku anglicky
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
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
21100 - Other engineering and technologies
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Journal of Loss Prevention in the Process Industries
ISSN
0950-4230
e-ISSN
—
Svazek periodika
69
Číslo periodika v rámci svazku
3
Stát vydavatele periodika
US - Spojené státy americké
Počet stran výsledku
11
Strana od-do
—
Kód UT WoS článku
000624136500001
EID výsledku v databázi Scopus
2-s2.0-85097764716