Flame propagation and explosion characteristics of food-based dust as a function of dust concentration

Siti Zubaidah, Sulaiman and Khairiah, Mohd Mokhtar and Wan Zaiton, Wan Sulaiman and Nur Hikmah, Semawia (2024) Flame propagation and explosion characteristics of food-based dust as a function of dust concentration. Process Safety Progress, 43 (3). pp. 579-586. ISSN 1547-5913. (Published)

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Abstract

A comprehensive grasp of the mechanisms and characteristics of dust explosions holds significant importance in guiding safe operations and risk mitigation measures. This research examined the impact of dust concentration on the flame propagation and explosion characteristics of rice flour and tea dust. The explosion test was carried out in a 20-L spherical chamber and demonstrated that elevating the dust concentration led to increased explosion pressure and flame velocity. Simultaneously, it decreased both the rise initiation time and the peak time. This observation can be attributed to more particles ignited by heat radiation per unit volume and a greater frequency of effective collisions between reactant molecules. These factors enhance mass and heat transfer in preheating and reaction zones, producing more violent pyrolysis. However, tea dust exhibited a slower flame propagation with weaker turbulent flame intensity due to its higher moisture content and larger particle size than rice flour.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	dust concentration; explosion characteristics; flame temperature; flame velocity; food-based dust
Subjects:	H Social Sciences > HD Industries. Land use. Labor T Technology > TP Chemical technology
Faculty/Division:	Faculty of Industrial Sciences And Technology Institute of Postgraduate Studies Faculty of Chemical and Process Engineering Technology
Depositing User:	Miss Amelia Binti Hasan
Date Deposited:	23 Dec 2024 02:00
Last Modified:	23 Dec 2024 02:00
URI:	http://umpir.ump.edu.my/id/eprint/43262
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