A simulation model for a MSW grate incinerator furnace

Municipal solid waste (MSW) incineration on a mechanical grate is simulated by means of a mathematical model featuring an adaptable MSW composition and stochastic variance. Various algorithms account for the movement and mixing of refuse, for drying, pyrolysis, combustion of volatiles and char, for heat transfer and mixing effects in the combustion chamber. Regulation and control algorithms can be built in and their effects on furnace capacity and effluent burn-out monitored. Continuous interaction is possible and input as well as operating variables may be changed at any time and the resulting variations followed in (accelerated) real time; the resulting changes may be used for characterizing the system, for predictive and control purposes, or for operator training. Also start-up and shut-down procedures can be simulated.