SIMULATION OF PULVERIZED COAL FIRED BOILER: REACTION CHAMBER

Abstract

This work is part of a joint project to built a computational tool for power plant simulation,
dealing specifically with the reaction chamber (place of the boiler where the fuel is burned).
In order to describe the conversion of chemical energy to thermal energy, an onedimensional pseudo-homogeneous mathematical model, with variable physical properties,
and based on mass and energy balances, was developed. The equations were implemented
in the gPROMS simulator and the model parameters were estimated using the module
gEST of this software, with experimental data from a large-scale coal-fired utility boiler
and kinetic data from the open literature. The results showed that the model predicts the
composition of the outlet combustion gas satisfactorily.