Affiliation:
1. National Research Tomsk Polytechnic University, Tomsk, Russia
Abstract
Numerical researches have been carried out to study the influence of air flow
temperature and a fossil fuel particle rate on sufficient conditions of
ignition in a ?coal particle - air? system. Developed mathematical model
takes into account interconnected processes of heat transfer in a coal
particle and gas area, thermal decomposition of organic material, diffusion
and gas-phase oxidation of volatiles, heating of a coke (carbon) and its
heterogeneous ignition. The effect of low-temperature (about 600 K) ignition
for a single coal particle is impossible even at variation of its rate
(radius) from 0.05 mm to 0.5 mm. Nevertheless this process is possible for
group of particles (two, three, et al.) situated at close-range from each
other. The physical aspects of the problem are discussed.
Publisher
National Library of Serbia
Subject
Renewable Energy, Sustainability and the Environment
Cited by
35 articles.
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