CFD simulations of pulverised coal – fired boiler of Duyen Hai Power plant 1 fuelled with sub - bituminous and anthracite coal blending for enhancement of combustion eficciency

Abstract

This paper is CFD simulation study of pulverised coal-fired utility W-shaped boiler furnace, with cyclon deNOx burners. The CFDmodel is used forpredictingcombustion efficiency of blending coals and various secondary air suplying conditions corresponding to the impact of the oxygen concentration control circuit in flue gases. The input data for CFDsimulations of coal-fired utility boiler furnance was collected from the Duyen Hai 1 thermal power pant with a unitcapacity of 622.5 MWwhen the plant's operational status was stable with proper operation as design. The model is based on Ansys Fluent 18 software which can be developed for researching combustion efficiency when adjusting boiler control loops.