Numerical study on in-furnace blending coal combustion characteristics in a 625 MW tangentially fired pulverized coal boiler

2019 ◽  
Author(s):  
Fajar Purnomo ◽  
Atok Setiyawan
Keyword(s):  
Coal Combustion ◽  
Numerical Study ◽  
Combustion Characteristics ◽  
Pulverized Coal ◽  
Pulverized Coal Boiler ◽  
Coal Boiler

scholarly journals Numerical study on the influence of platen super-heater on combustion characteristics in a 600 MW tangentially fired pulverized-coal boiler

2020 ◽  
pp. 245-245
Author(s):  
Kai Chen ◽  
Xinfei Liu ◽  
Yao Qin
Keyword(s):  
Heat Transfer ◽  
Numerical Study ◽  
Species Distributions ◽  
Combustion Characteristics ◽  
Pulverized Coal ◽  
Heat Distribution ◽  
Pulverized Coal Boiler ◽  
Super Heater ◽  
Coal Boiler ◽  
Weak Influence

Numerical simulations have been conducted to study combustion characteristics of tangentially fired pulverized-coal boiler. A 600 MW tangentially coal-fired boiler was used for investigating the effect of platen super-heaters on the temperature, species distributions and heat transfer. Two furnace models were established, whose difference lies in modeling super-heaters or not. Results show that modelling platen super-heaters is conducive to precisely predict the temperature, species (CO, CO2, O2) and heat flux in the platen zone and has a weak influence on these data in zones below the platen. Modelling platen super-heaters has little influence on the NOx prediction. Platen super-heaters obviously decrease heat absorbed by water-wall nearby and affects heat distribution coefficient of furnace.

Pulverized coal combustion characteristics of high-fuel-ratio coals

Fuel ◽  
2004 ◽  
Vol 83 (13) ◽  
pp. 1777-1785 ◽  
Author(s):  
Ryoichi Kurose ◽  
Michitaka Ikeda ◽  
Hisao Makino ◽  
Masayoshi Kimoto ◽  
Tetsuo Miyazaki
Keyword(s):  
Coal Combustion ◽  
Combustion Characteristics ◽  
Pulverized Coal ◽  
Pulverized Coal Combustion ◽  
Fuel Ratio
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