Influence of the Flow Rate of Oxidising Atmosphere on the Flame Spread Rate on the Surface of Organic Setlled Dust

Martinka Jozef (), Balog Karol (), Hrušovský Ivan () and Valentová Veronika ()
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Martinka Jozef: Institute of Safety and Environmental Engineering, Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic
Balog Karol: Institute of Safety and Environmental Engineering, Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic
Hrušovský Ivan: Institute of Safety and Environmental Engineering, Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic
Valentová Veronika: Institute of Safety and Environmental Engineering, Faculty of Materials Science and Technology, Slovak University of Technology, Paulínska 16, 917 24 Trnava, Slovak Republic

Research Papers Faculty of Materials Science and Technology Slovak University of Technology, 2013, vol. 20, issue 32, 20-27

Abstract: The presented paper deals with determining the influence of the flow rate of oxidising atmosphere on the flame spread along the surface of the organic settled dust layer. We determined the rate of the flame spread on the surface of the organic settled dust layer (whole grain rye and spelt flour) with absolute moisture of 10 % wt., for the flow rates of oxidising atmosphere 1, 3, 5 and 10 cm/s. Pure oxygen was used as an oxidising atmosphere. The obtained results suggest that there exists a power relationship of the flame spread rate along the surface of organic settled dust layer to the flow rate of the oxidising mixture. The method described is suitable for the relative comparison of the organic settled dust layer from the point of its ability to spread the flame and the influence of the air flow rate on this process.

Keywords: Dust; Dust layer; Flame spread rate; Oxidising mixture flow rate; Dust fire risk assessment (search for similar items in EconPapers)
Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:vrs:repfms:v:20:y:2013:i:32:p:20-27:n:3

DOI: 10.2478/v10186-012-0003-8

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