<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>EN 14034 standard defines the requirements for igniter, to determine the properties of dust clouds. The standard specifies the conditions for occurrence of explosions of dust clouds. According to the standard, equipment with a volume of 1m3 and 20L can be used to determine the explosion parameters of dispersed dusts. The equipment has the time parameters of dispersing and the ignition system defined in the Standard. Experimental determination of time parameters is required for a different chamber volume. The article therefore deals with the determination of parameters for dispersing system in the 291 litre chamber. Determination of igniter delay was performed on the base of setting the time relay. Activation of pressurised air flow was determined by calculation, and it was subsequently experimentally verified in laboratory conditions. A video camera recording was selected for measuring the rate of nitrocellulose ignition from the resistance wire. The result of this study is determination of the igniter timing in dependence of the explosion chamber volume. The time delay of the nitrocellulose igniter is 320 ms.</p>
</abstract>

EN 14034 standard defines the requirements for igniter, to determine the properties of dust clouds. The standard specifies the conditions for occurrence of explosions of dust clouds. According to the standard, equipment with a volume of 1m3 and 20L can be used to determine the explosion parameters of dispersed dusts. The equipment has the time parameters of dispersing and the ignition system defined in the Standard. Experimental determination of time parameters is required for a different chamber volume. The article therefore deals with the determination of parameters for dispersing system in the 291 litre chamber. Determination of igniter delay was performed on the base of setting the time relay. Activation of pressurised air flow was determined by calculation, and it was subsequently experimentally verified in laboratory conditions. A video camera recording was selected for measuring the rate of nitrocellulose ignition from the resistance wire. The result of this study is determination of the igniter timing in dependence of the explosion chamber volume. The time delay of the nitrocellulose igniter is 320 ms.

Determination of Timing Parameters of Dust Clouds Explosion in Dependence on the Size of the Vessel Volume

Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology In Trnava

Research Papers Faculty of Materials Science and Technology Slovak University of Technology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

EN 14034 standard defines the requirements for igniter, to determine the properties of dust clouds. The standard specifies the conditions for occurrence of...

Determination of Timing Parameters of Dust Clouds Explosion in Dependence on the Size of the Vessel Volume

Published Online: Aug 05, 2021

Page range: 55 - 64

Received: Apr 28, 2021

Accepted: May 26, 2021

DOI: https://doi.org/10.2478/rput-2021-0005

Keywords
Nitrocellulose, ignition, resistance wire, dust clouds explosion, timing parameters

© 2021 Richard Kuracina et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Determination of Timing Parameters of Dust Clouds Explosion in Dependence on the Size of the Vessel Volume

Published Online: Aug 05, 2021

Page range: 55 - 64

Received: Apr 28, 2021

Accepted: May 26, 2021

DOI: https://doi.org/10.2478/rput-2021-0005

KeywordsNitrocellulose, ignition, resistance wire, dust clouds explosion, timing parameters

© 2021 Richard Kuracina et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Nitrocellulose, ignition, resistance wire, dust clouds explosion, timing parameters