1. bookVolume 27 (2019): Issue 44 (June 2019)
Journal Details
License
Format
Journal
eISSN
1338-0532
First Published
03 Mar 2011
Publication timeframe
2 times per year
Languages
English
access type Open Access

Study of Explosion Characteristics of the Wheat Flour Dust Clouds in Dependence of the Particle Size Distribution

Published Online: 03 Sep 2019
Volume & Issue: Volume 27 (2019) - Issue 44 (June 2019)
Page range: 65 - 71
Received: 30 Apr 2019
Accepted: 05 Jun 2019
Journal Details
License
Format
Journal
eISSN
1338-0532
First Published
03 Mar 2011
Publication timeframe
2 times per year
Languages
English
Abstract

Fire protection is an important part of the industry where flammable and explosive dusts are found. Production, storage and transport of food powders such as flour can be very dangerous in terms of explosiveness. The article deals with the measurement of explosion characteristics of wheat flour dust. The measurements were carried out according to EN 14034-1+A1:2011 Determination of explosion characteristics of dust clouds. Part 1: Determination of the maximum explosion pressure pmax of dust clouds and the maximum rate of explosion pressure rise according to EN 14034-2+A1:2012 Determination of explosion characteristics of dust clouds - Part 2: Determination of the maximum rate of explosion pressure rise (dp/dt)max of dust clouds. A sample of wheat flour with a median particle size 84 μm exhibits the maximum explosion pressure 7.00 bar at the concentration of 600 g.m−3 and then explosion constant is 16.9 bar.s−1.m. A sample of wheat flour with a median particle size 50 μm exhibits the maximum explosion pressure 7.97 bar at the concentration of 1000 g.m−3 and the explosion constant 54.9 bar.s−1.m.Based on the results of the measurements, we found that the particle size distribution has a significant influence on the explosion parameters of the wheat flour samples.

Keywords

[1] TASCÓN, A. 2017. Design of silos for dust explosions: Determination of vent area sizes and explosion pressures. Engineering Structures.134, 1 - 10, ISSN 0141-029610.1016/j.engstruct.2016.12.016Search in Google Scholar

[2] ŠTROCH, P. 2016. Do not underestimate danger of explosion; Even dust can destroy equipment and kill. Perspectives in Science. 7, 312—316, ISSN 2213-020910.1016/j.pisc.2015.11.048Search in Google Scholar

[3] YUAN, Z., KHAKZAD, N., KHAN, F., AMYOTTE, P. 2015 Dust explosions: A threat to the process industries. Process Safety and Environmental Protection, 98, 57 - 71, ISSN 0957-582010.1016/j.psep.2015.06.008Search in Google Scholar

[4] ECKHOFF, R.,K. 2003. Dust Explosions in the Process Industries, 3rd ed. Gulf Professional Publishing. 719 p. ISBN 978 075 067 6021Search in Google Scholar

[5] DAMEC, J., 1993, Risk of industrial dust explosions (Part 4). In 150 Fire, No. 6, ISSN 0682-8467Search in Google Scholar

[6] CASTELLANOS, D., CARRETO-VAZQUEZ, V.A., MASHGUA, C.V., TROTTIER, R., MEIJA A. F., MANNAN, M.S. 2014. The effect of particle size polydispersity on the explosibility characteristics of aluminum dust. Powder technology.254, 331 - 337, ISSN 0032-591010.1016/j.powtec.2013.11.028Search in Google Scholar

[7] HONGMING, Z., XIANFENG, C., YING, Z., YI, N., BIHE, Y., HUAMING, D., SONG, H. 2017. Effects of particle size on flame structures through corn starch dust explosions. Journal of Loss Prevention in the Process Industries.50(part A),7 - 14, ISSN 0950-423010.1016/j.jlp.2017.09.002Search in Google Scholar

[8] NOOR, A. A. K., RISZA, R., AZIZUL, B., NUR, S. A. R. 2016. Investigation of the Explosion Behaviour Affected by the Change of Particle Size. Procedia Engineering, 148, 1156 - 1161, ISSN 1877-705810.1016/j.proeng.2016.06.618Search in Google Scholar

[9] STN EN 14034-3+A1:2012 Determination of explosion characteristics of dust clouds. Part 3:Determination of the lower explosion limit LEL of dust cloudsSearch in Google Scholar

[10] GESTIS-DUST-EX, Database Combustion and explosion characteristics of dusts, IFA, online [2019-6-21]: http://staubex.ifa.dguv.de/exploergebnis.aspx?lang=eSearch in Google Scholar

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