Influence of coal dust on premixed turbulent methane–air flames
نویسندگان
چکیده
This study discusses the design of a new experimental platform, the Hybrid Flame Analyzer (HFA) to measure burning velocity of gas, dust, and hybrid (gas and dust) premixed flames. The HFA is used to analyze a particle–gas–air system of coal dust particles (75–90 lm and 106–120 lm) in a premixed CH4–air (/g = 0.8, 1.0 and 1.2) flame. Experimental results show that particles usually increase the turbulent burning velocity. Smaller particle sizes and larger concentrations (>50 g/m) increase turbulent burning velocity compared with larger particle sizes and lower concentration ranges. The experimental data is used to develop a correlation similar to turbulent gas flames to help modeling of the complex behavior. 2012 The Combustion Institute. Published by Elsevier Inc. All rights reserved.
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