CAJ | 학술논문

本文建立了单元玻璃窑炉富氧燃烧空间三维数学模型,其中气相流动模型由质量守恒定律、动量守恒定律、能量守恒定律和标准k-ε湍流模型组成,化学反应模型使用有限速率/涡耗散模型,辐射传热模型使用离散坐标模型.以年产2万吨玻璃纤维的熔窑为对象,利用Fluent软件对富氧燃烧空间内气体的流动状况和温度分布进行数值模拟.通过模拟结果与现场实测数据进行比较可以看出,该数学模型能够比较客观地反映单元玻璃窑炉富氧燃烧空间的温度场和速度场的分布规律.在此基础上,对喷枪的布置加以调整和改进后得到了更佳的模拟效果,还说明该数学模型对窑炉富氧燃烧在生产过程的研究和应用也有一定的指导作用.
본문건립료단원파리요로부양연소공간삼유수학모형,기중기상류동모형유질량수항정률、동량수항정률、능량수항정률화표준k-ε단류모형조성,화학반응모형사용유한속솔/와모산모형,복사전열모형사용리산좌표모형.이년산2만둔파리섬유적용요위대상,이용Fluent연건대부양연소공간내기체적류동상황화온도분포진행수치모의.통과모의결과여현장실측수거진행비교가이간출,해수학모형능구비교객관지반영단원파리요로부양연소공간적온도장화속도장적분포규률.재차기출상,대분창적포치가이조정화개진후득도료경가적모의효과,환설명해수학모형대요로부양연소재생산과정적연구화응용야유일정적지도작용.
This paper establishes a three-dimensional mathematical model of cell glass furnace in the oxygen-enriched combustion space, which consisting of gas flow model composed of mass conservation equation, momentum conservation equation, energy conservation equation as well as the standard k-ε model; chemical reaction model composed of eddy-dissipation model; and radiation model composed of discrete ordinates model. Based on the object of an annual output of 20000 t fiber glass furnace, the distribution of gas flow and temperature field, velocity field of the furnace are researched by using FLUENT software. According to the comparison between the simulation results and the measured results obtained on the spot, it can be suggested that the mathematical model can objectively reflect the real distribution of the temperature field and velocity field of the cell glass furnace. On the basis of research results, the author makes some recommendations to improve simulation results of the combustion process, that is, to adjust the layout of the spray gun on the combustion space. It also can be shown that the three-dimensional mathematical model plays an important role in the research and application of the oxygen-enriched combustion of cell glass furnace.