摘要
采用基于k-ε湍流模型、涡-耗散化学反应模型、P1辐射传热模型的数值模拟方法,研究了玻璃熔窑在全氧燃烧条件下烟气出口面积对窑内压力场和火焰空间的影响规律。研究结果表明,所选用的三维数学模型能够较为真实的反应全氧燃烧玻璃熔窑火焰空间的状态。随着烟气出口面积的增加,玻璃熔窑内压力下降,窑内平均压力与烟气出口面积符合指数衰减关系。当单侧烟气出口面积为0.36 m2时,窑内平均压力约为6 Pa。烟气出口面积改变对火焰形态以及温度场的影响不明显。因此改变烟气出口面积可以作为有效调节全氧燃烧浮法玻璃熔窑窑内压力技术手段,这为指导全氧燃烧玻璃熔窑的设计和运行提供了理论依据。
By numerical simulation method,the influence of the acreage of the flue exhaust on the pressure of an oxy-fuel glass furnace was investigated.The simulating results showed that 3D mathematical model was suitable to reflect the flow field and the temperature field of combustion space.The furnace pressure decreased with the increasing of the acreage of the flue exhaust,following an exponential decay function.The average furnace pressure was nearly 6 Pa at the acreage of the fuel exhaust 0.36 m2.The influence of the acreage of the fuel exhaust on the temperature field was very small.Thus it is a useful way to control the furnace pressure by adjusting the outlet acreage.These calculated results are very helpful to design and run the oxy-fuel float glass furnace.
出处
《能源工程》
2010年第5期11-14,共4页
Energy Engineering
基金
国家科技支撑计划资助项目(2006BAF02A26)
关键词
全氧燃烧
玻璃熔窑
窑压
CFD模拟
oxy-fuel
float glass furnace
furnace pressure
CFD simulation
