Numerical Simulation and Experimental Study on Blending Lignite from Bituminous Coal Boiler

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Wang, Qian^1 ; Kai, W.U.^2 ; Zhuan, L.I.U.^1 ; Yong-Jun, X.I.A.^1 ; Zhou, Xu-Guang^1

State Grid JiangXi Electric Power Research Institute, Nanchang

330096, China^1

Xinchang Power Generation Branch, Nanchang

330000, China^2

关键词: Diffusion-kinetic modeling;    Gas-solid two-phase;    Lagrangian methods;    Mixed combustions;    Parallel reaction models;    Propagation method;    Pulverized coal particle;    Trajectory field;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/3/032017/pdf
DOI  :  10.1088/1755-1315/310/3/032017

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, the turbulent flow between gas-solid two-phase is used to calculate the turbulence model of RNG k-model. The trajectory field of pulverized coal particles is based on Lagrangian random particle orbit method. Radiation heat transfer was calculated by discrete propagation method; double parallel reaction model was adopted for the release of pulverized coal volatiles; gas phase mixed combustion was described by mixed fraction model; diffusion kinetic model was used for coke combustion; Lagrangian method was used for calculation of particle phase.