The method is applicable to premixed and non-premixed combustion. The model is designed to work with a wide range of char types, temperatures, oxygen concentrations, particle sizes, and extent of burnout. It uses an intrinsic approach with a pore diffusion model and TGA data to predict high temperature burnout and rates. BCOM can be used either as a stand-alone code or as a submodel in a comprehensive computer code. The model will accept intrinsic kinetic input, or can use coal general parameters and char specific values for the char being modeled.
Heat transfer is by conduction, convection, and radiation.
The kiln can be parallel or counter flow. Indirect and direct heating of the kiln is possible. The movement of the solids and the gas are approximated by the assumption of plug flow.