期刊名称：Lecture Notes in Engineering and Computer Science
印刷版ISSN：2078-0958
电子版ISSN：2078-0966
出版年度：2018
卷号：2237&2238
页码：476-481
出版社：Newswood and International Association of Engineers
摘要：Identifying the difference of ignition delay time
between bituminous and lignite coals is the main aim of this
research. Finding the reaction mechanisms affecting this
behaviour is a key part of the investigation. Seven reaction
mechanisms are used to represent coal combustion at a particle
level, and this paper principally focuses on the devolatilzation
process reaction for predicting the ignition delay time of coal
particle combustion. Two types of coal namely PSOC 1451 and
PSOC 1443 are examined numerically, and results are
compared with the experimental data. Existing kinetic
parameters for the devolatilization reaction R1 (Coal
Coalvolatile + char) underestimates the ignition delay time
which is largely influenced by the value of the pre-exponent
factor (A) of R1. Results giving the best agreement with the
experiment are obtained with A= 3.12 x 105
and 9.36 x 107
for
PSOC 1451 and PSOC 1443, respectively.
