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10. Experimental Studies Related to
Pulverised Thin Layer Coal Combustion
Dilip Kumar Gupta1* & Kasturi Gadgil2
1Centre for Energy
Studies Indian Institute of Technology New Delhi, India
2 Centre for Energy
Studies, I.I.T, Delhi, Hauz Khas, New Delhi (INDIA) – 110016
kgadgil2k@yahoo.com
(Received 03 September 2005; accepted
13 January 2006)
Abstract:
Pulverised coal combustion processes are usually very complex and
involve many intricate physical and chemical steps. The motive is (i)
to device an experimental methodology for studying heterogeneous
combustion kinetics (ii) to attempt fitting some rate controlling
models for progress of reaction. On the basis of particle size and
temperature variation progressive conversion of coal will be focused.
Through experimental method combustion characteristic of coal and char
has been studied in this paper. Combustion experiments have been done
using simple batch reaction technique and the more intricate thermo
gravimetric (TGA) technique. Kinetic runs showing burning profiles
with different particle sizes have been presented. These experimental
results have been analyzed to draw useful conclusions and mathematical
modelling has been done to satisfy the experimental results which have
been discussed in the present communication.
Key words:
char combustion, progressive conversion, unreacted core.
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