Numerical Simulation of Combustion Characteristics of a Corner-tube Gas Boiler
In order to study the effect of excess air coefficient and heat load on the combustion of the furnace, a 130t/h corner-tube gas boiler was taken as the research object, and the combustion process of the furnace was simulated by CFD software.The combustion processes of the furnace under different excess air coefficients and different heat loads were numerically simulated respectively using the eddy-dissipation combustion model, the P-1 radiation model and the k-ε turbulence model.It provides numerical simulation reference for the design of the comer tube boiler.The results show that with the increase of the excess air coefficient, the flame length becomes shorter, the average temperature of the furnace decreases, and the outlet flue gas temperature decreases.Flame length is not affected by the change of heat load, but as the heat load decreases,the outlet flue gas temperature and the outlet flue gas velocity decrease.
Corner-tube gas boiler Combustion Numerical simulation Excess air coefficient Heat load
Xing-lin YANG Wei WEI
Jiangsu University of Science and Technology, No.2 Mengxi road, Jingkou District, Zhenjiang city,Jiangsu province, 212003, China
国际会议
上海
英文
347-352
2018-04-15（万方平台首次上网日期，不代表论文的发表时间）