Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts

A commercially available pyrotechnic igniter was used according to the EN 14034 and ASTM E1226a Standards to study the explosiveness of dispersed dusts. Its pyrotechnic composition consists of 1.2 g of zirconium (40% wt.), barium peroxide (30% wt.) and barium nitrate (30% wt.). The energy released d...

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Autores principales:	Zuzana Szabová, Richard Kuracina, Martin Sahul, Miroslav Mynarz, Petr Lepík, László Kosár
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	dust explosion pyrotechnic igniter dispersed dust magnesium powder <i>Lycopodium clavatum</i> powder benzoic acid Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/e7a45add2e254e829e103a15c4fdf052
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spelling	oai:doaj.org-article:e7a45add2e254e829e103a15c4fdf0522021-11-25T16:36:50ZInfluence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts10.3390/app1122107282076-3417https://doaj.org/article/e7a45add2e254e829e103a15c4fdf0522021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/22/10728https://doaj.org/toc/2076-3417A commercially available pyrotechnic igniter was used according to the EN 14034 and ASTM E1226a Standards to study the explosiveness of dispersed dusts. Its pyrotechnic composition consists of 1.2 g of zirconium (40% wt.), barium peroxide (30% wt.) and barium nitrate (30% wt.). The energy released during the combustion of that amount of composition is 5 kJ. The article investigates the influence of aging of the pyrotechnic composition in the igniter on its initiation parameters. In the study, igniters of different years from date of manufacture were used: Igniter 1, manufactured in 2021 (less than 1 year from date of manufacture), and Igniter 2 (more than 2 years from date of manufacture). The study was performed in the KV 150M2 explosion chamber with a volume of 365 L and the 20 L sphere chamber with a volume of 20 L. A standard sample of <i>Lycopodium clavatum</i> was used in the KV 150M2 explosion chamber. Magnesium and benzoic acid were used as the samples in the 20 L sphere explosion chamber. The experiment showed that the explosion pressure P<sub>max</sub> of the igniter with more than 2 years from date of manufacture decreased by up to 10%, while the value of the explosion constant K<sub>st</sub> decreased by up to 40%. The attained results proved that aging of igniters affects their explosion parameters and measurement accuracy.Zuzana SzabováRichard KuracinaMartin SahulMiroslav MynarzPetr LepíkLászló KosárMDPI AGarticledust explosionpyrotechnic igniterdispersed dustmagnesium powder<i>Lycopodium clavatum</i> powderbenzoic acidTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10728, p 10728 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	dust explosion pyrotechnic igniter dispersed dust magnesium powder <i>Lycopodium clavatum</i> powder benzoic acid Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	dust explosion pyrotechnic igniter dispersed dust magnesium powder <i>Lycopodium clavatum</i> powder benzoic acid Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Zuzana Szabová Richard Kuracina Martin Sahul Miroslav Mynarz Petr Lepík László Kosár Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
description	A commercially available pyrotechnic igniter was used according to the EN 14034 and ASTM E1226a Standards to study the explosiveness of dispersed dusts. Its pyrotechnic composition consists of 1.2 g of zirconium (40% wt.), barium peroxide (30% wt.) and barium nitrate (30% wt.). The energy released during the combustion of that amount of composition is 5 kJ. The article investigates the influence of aging of the pyrotechnic composition in the igniter on its initiation parameters. In the study, igniters of different years from date of manufacture were used: Igniter 1, manufactured in 2021 (less than 1 year from date of manufacture), and Igniter 2 (more than 2 years from date of manufacture). The study was performed in the KV 150M2 explosion chamber with a volume of 365 L and the 20 L sphere chamber with a volume of 20 L. A standard sample of <i>Lycopodium clavatum</i> was used in the KV 150M2 explosion chamber. Magnesium and benzoic acid were used as the samples in the 20 L sphere explosion chamber. The experiment showed that the explosion pressure P<sub>max</sub> of the igniter with more than 2 years from date of manufacture decreased by up to 10%, while the value of the explosion constant K<sub>st</sub> decreased by up to 40%. The attained results proved that aging of igniters affects their explosion parameters and measurement accuracy.
format	article
author	Zuzana Szabová Richard Kuracina Martin Sahul Miroslav Mynarz Petr Lepík László Kosár
author_facet	Zuzana Szabová Richard Kuracina Martin Sahul Miroslav Mynarz Petr Lepík László Kosár
author_sort	Zuzana Szabová
title	Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
title_short	Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
title_full	Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
title_fullStr	Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
title_full_unstemmed	Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts
title_sort	influence of the pyrotechnic igniter composition aging on explosion parameters of dispersed dusts
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/e7a45add2e254e829e103a15c4fdf052
work_keys_str_mv	AT zuzanaszabova influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts AT richardkuracina influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts AT martinsahul influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts AT miroslavmynarz influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts AT petrlepik influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts AT laszlokosar influenceofthepyrotechnicignitercompositionagingonexplosionparametersofdisperseddusts
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Influence of the Pyrotechnic Igniter Composition Aging on Explosion Parameters of Dispersed Dusts

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