Slagging and Fouling Evaluation of PC-Fired Boilers Using AshProSM
SmartBum applied AshProSM model to two 512 MW Tangential-fired (T-fired) boilers firing US western sub-bituminous coals to evaluate the boiler slagging behaviors with different operating conditions and OFA.The boiler convective pass fouling behaviors with three different coals were also evaluated.The slagging evaluation results indicate that the OFA configuration and air flow distribution have dramatically impacts on the ash impaction rates and slagging patterns on the furnace walls.Deposit growth and strength vary at the different regions of the furnace walls.The fouling evaluation reveals that the tube bank configuration,the amount of incoming ash,the profiles of flue gas temperature,velocity,and species all have significant impacts on fouling deposit formation,growth,and strength development.In addition,the varying ash particle sizes and chemical compositions from different coals also play important roles on the fouling deposit strength development and removal.The investigation demonstrated that AshProSM model can be used to evaluate localized slagging and fouling problems that are related to specific boiler configuration and operating conditions.It can be used to identify the major causes of ash deposition and can guide changes in boiler operation.
Coal-fired Boiler Pulverized Coal Slagging,Fouling CFD Ash Prediction
Zhanhua Ma Felicia Iman Pisi Lu
SmartBurn,LLC,579 DOnofrio Drive,Suite 200,Madison,WI 53719,USA
国际会议
The 7th International Symposium on Coal Combustion(第七届国际煤燃烧学术会议)
哈尔滨
英文
184-190
2011-07-19（万方平台首次上网日期，不代表论文的发表时间）