Numerical Simulation of CO2 Formation in a Cyclone-Opposed Coal-Fired Utility Boiler

被引：0

作者：

Li Fangqin ^{[1
]}

Ren Jianxing ^{[1
]}

Wu Jiang ^{[1
]}

Sun Jianrong ^{[1
]}

Li Henan ^{[1
]}

机构：

[1] Shanghai Univ Elect Power, Dept Energy & Environm Engn, Shanghai 200090, Peoples R China

来源：

6TH INTERNATIONAL SYMPOSIUM OF ASIA INSTITUTE OF URBAN ENVIRONMENT: ENERGY CONSERVATION AND CARBON OFF IN ASIA CITY | 2009年

关键词：

CO2; swirl-opposed boiler; numerical simulation; combustion;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In this paper, FLUENT 6.0 software was used to simulate the burning process in a utility boiler. Chose the kinetics/diffusion-limited as combustion model, two-competing-rates as devolatilization model, RNG k-epsilon model as viscous model, and PDF model as combustion turbulent flow model. Numerical calculation of CO2 formation in a 330MW cyclone-opposed coal-fired utility boiler with 32 double air registers was done. The distributing characteristics of CO2 and oxygen concentration in furnace were studied. They were symmetrically distributed in furnace. The higher oxygen concentration was at furnace outlet, the lower CO2 concentration was. The greater the excess air coefficient was at furnace outlet, the lower CO2 emission was at furnace outlet.

引用

页码：833 / 837

页数：5