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

Author

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  • Kuracina Richard
  • Szabová Zuzana

    (Slovak University Of Technology In Bratislava, Faculty Of Materials Science And Technology In Trnava, Institute Of Integral Safety, Ulica Jána Bottu 2781/25, 917 24 Trnava, Slovak Republic)

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.

Suggested Citation

  • Kuracina Richard & Szabová Zuzana, 2021. "Determination of Timing Parameters of Dust Clouds Explosion in Dependence on the Size of the Vessel Volume," Research Papers Faculty of Materials Science and Technology Slovak University of Technology, Sciendo, vol. 29(48), pages 55-64, June.
    • Handle: RePEc:vrs:repfms:v:29:y:2021:i:48:p:55-64:n:7
    DOI: 10.2478/rput-2021-0005
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