Effect of energy and design of ignitor on dust explosion characteristics

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F24%3A39920712" target="_blank" >RIV/00216275:25310/24:39920712 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/abs/pii/S0016236123029538?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0016236123029538?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.fuel.2023.130339" target="_blank" >10.1016/j.fuel.2023.130339</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of energy and design of ignitor on dust explosion characteristics

Popis výsledku v původním jazyce

The type of ignition plays a crucial role in dust explosion measurements. To date, research on the ignition part has mostly focused on ignition by electric spark, or pyrotechnic ignitor, with various energies. Only a few works focus on the use of different types of pyrotechnic ignitors and different pyrotechnic mixtures. This work examines the effect of the pyrotechnic ignitor’s energy, design, and pyrotechnic composition on the measurement of safety parameters of combustible dusts. Measurements were carried out with lycopodium in a 20 dm3 explosion chamber, recording the pressure and output voltage from the optical probe. A high-speed imaging technique were used to investigate ignitors behaviour. In summary, the ignitor type and its energy have significant effect on measured explosion parameters. It was shown that burning of the pyrotechnic mixture in the Standard Sobbe ignitors overlaps ignition and burning of Lycopodium dust itself. Squibs burn for a shorter time while producing a significant pressure wave which acting on the dust cloud, causing its disturbances and influencing explosion parameters

Název v anglickém jazyce

Effect of energy and design of ignitor on dust explosion characteristics

Popis výsledku anglicky

The type of ignition plays a crucial role in dust explosion measurements. To date, research on the ignition part has mostly focused on ignition by electric spark, or pyrotechnic ignitor, with various energies. Only a few works focus on the use of different types of pyrotechnic ignitors and different pyrotechnic mixtures. This work examines the effect of the pyrotechnic ignitor’s energy, design, and pyrotechnic composition on the measurement of safety parameters of combustible dusts. Measurements were carried out with lycopodium in a 20 dm3 explosion chamber, recording the pressure and output voltage from the optical probe. A high-speed imaging technique were used to investigate ignitors behaviour. In summary, the ignitor type and its energy have significant effect on measured explosion parameters. It was shown that burning of the pyrotechnic mixture in the Standard Sobbe ignitors overlaps ignition and burning of Lycopodium dust itself. Squibs burn for a shorter time while producing a significant pressure wave which acting on the dust cloud, causing its disturbances and influencing explosion parameters

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20704 - Energy and fuels

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Fuel

ISSN

0016-2361

e-ISSN

1873-7153

Svazek periodika

358

Číslo periodika v rámci svazku

February 2024

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

130339

Kód UT WoS článku

001112567600001

EID výsledku v databázi Scopus

2-s2.0-85176548132