基于CFD仿真的工业炉燃烧预测分析研究  

Research on Prediction and Analysis of Industrial Furnace Combustion Based on CFD Simulation

作　　者：赵刚[1] ZHAO Gang(Shaanxi Institute of Technology Xi'an 710300,China)

机构地区：[1]陕西国防工业职业技术学院,陕西西安710300

出　　处：《工业加热》2021年第8期26-28,35,共4页Industrial Heating

摘　　要：CFD(计算流体动力学)中的工业锅炉的模拟通常是分阶段执行的,其中第一阶段用于一次空气回路,第二阶段用于二次空气回路,第三阶段是熔炉。工业炉内燃烧是一个复杂的现象,涉及水分蒸发,脱挥发分和焦炭燃烧,为了解决这些现象,采用Eulerian-Lagrangian方法对燃料进行建模,通过ANSYS FLUENT进行仿真,并使用C语言将脱挥发分模型编程为用户定义函数。将模拟结果与实验数据进行比较时,结果显示基本一致,为了优化锅炉性能,对主要和次要进气口进行了仿真,仿真结果表明燃烧参数得到了显著改善。The simulation of industrial boilers in CFD(computational fluid dynamics)is usually performed in stages,where the first stage is used for the primary air circuit,the second stage is used for the secondary air circuit,and the third stage is the furnace.Combustion in an industrial furnace is a complex phenomenon involving water evaporation,devolatilization and coke combustion.In order to solve these phenomena,the fuel is modeled by the Eulerian-Lagrangian method,simulated by ANSYS FLUENT,and devolatilized by C language Sub-model programming is user-defined function.When the simulation results are compared with the experimental data,the results show that they are basically the same.In order to optimize the performance of the boiler,the main and secondary air inlets are simulated.The simulation results show that the combustion parameters have been significantly improved.

关 键 词：数学建模 数值模拟 工业炉燃烧 离散相 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]