玻璃池窑火焰空间三维传热数学模型的研究

Studies on Three-dimensional Mathematical Model of Heat Transfer in Combustion Space of Glass Tank Furnace

本文以传热理论为基础,提出了玻璃池窑火焰空间三维传热数学模型。运用Monte Carlo方法求解火焰空间的三维辐射传热,采用隐函方法和直接迭代校正方法求解配合料熔化过程的Stefan问题。模拟结果表明,该数学模型是基本上符合实际的。同时模拟了窑体热阻、火焰覆盖程度及胸墙高度对熔化时间、窑顶温度、散失热量的影响。模拟结果表明,窑体热阻,火焰覆盖程度对玻璃配合料熔化时间的影响很大;同时表明,为了延长窑体寿命,窑炉的胸墙可适当增高。

In this paper, the 3-D mathemat ical modei of heat transfer in combustion Space of glass tank furnace has been estiblished on the bas is heat tanfer theosies. Monte-Carlo method is applied to solving the radiation heat transfer in 3-D combustion Space. Implicit method and direct iteration method w ith correct ion are applied to solving Stefan's problem of batch melting process. The simulation results show that the mathematical modei is in accordance with practice on the whole.The influence of heat resistance of f urnace crown and wall, flame covered percentage and height of breast wall on batch melting time, crown temperatures and heat loss of furnace crown and wall has been simulated. The simulation results show that the influence of heat resistance of furnace crown and wall, and flarne covered percentage on batch melting time is great. The simulation results also show that the breast wall height may be increased propetly for prolonging the furnace life.