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Seyed alireza Mostafavi

Seyed alireza Mostafavi

Academic rank: Associate Professor
ORCID: https://orcid.org/0000-0002-1091-5541
Education: PhD.
ScopusId: 55642788000
Faculty: Engineering
Address: Arak University
Phone:

Research

Title
The discrete heat source approach to dust cloud combustion
Type
JournalPaper
Keywords
,Discrete heat source , Dust combustion ,Aluminum particles, Burning velocity, Lean limit Ignition temperature
Year
2014
Journal Heat and Mass Transfer
DOI
Researchers saeedreza zadsirjan ، Seyed alireza Mostafavi ، Mehdi Bidabadi

Abstract

In the present paper, combustion of dust clouds from the discrete point heat source method has been addressed. Time-place temperature profile generated by single particle burning has been obtained to study the dust combustion. The summation of the temperature profiles of burned and burning particles predict the temperature in the preheating zone so that the ignition time of layer in flame front can be determined. Consequently the flame propagating speed was obtained based on the dust concentration corresponding to particles spacing and particle diameter. This method has been validated with aluminum dust cloud combustion. Decrease in the dust concentration leads to the lean limit of dust combustion. Increase in particles diameter or reduction in the dust concentration causes higher lean limit and also reduction in the flame propagating speed. Adding the ignition energy as igniter to this system, provides the path to study the effects of ignition energy in the dust combustion.