Solid fuel utilization: From coal to biomass

Biomass has always been used as a localized energy source. Its seasonal availability, low calorific value, and density make it less attractive as a fuel in a centralized power generation system mainly because of higher costs associated with its storage and transportation. Notwithstanding these constraints, biomass fuels may be used together with coal in existing combustion systems. The focus of this paper is therefore on transferring the experience that has been gained from pulverized coal combustion to that of the cocombustion of biologically derived solid fuels. The substitution of these green fuels has the potential to significantly ameliorate the environmental impact of coal utilization. This lecture comprises a few comments on equipment, and on fuel characterization, something on the relevant physical processes and experimentation, and some discussion of the mathematical modeling of the combustion of solid fuels.

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