摘要
建立了循环流化床锅炉的三维物理模型,基于Simple算法,运用RNG k-ε湍流方程,结合有限体积法对控制方程进行离散,对炉膛燃烧进行模拟,在一次风速不变的情况下,针对二次风速分别为40 m/s、50 m/s工况下的炉膛组分及温度场分布进行对比分析,并通过试验来验证,为炉膛的优化设计和实际燃烧运行调节提供参考依据。
In this paper, 3-D physics model of circulating fluidized bed furnace was established. Based on Simple algorithm, by using RNG k-ε turbulence equation and limit volume method, the control equation was discrete so as to simulate the combustion in the furnace. Under the condition that primary wind velocity is constant, the compositions in the furnace and the distribution of temperature fields with secondary wind velocities of 40 m/s and 50 m/s respectively were compared and analyzed, and the results were verified with test, which may be as references in optimum design of the furnace and in adjustment of the furnace combustion operation.
出处
《化工与医药工程》
2014年第6期31-33,共3页
Chemical and Pharmaceutical Engineering
关键词
循环流化床
炉膛燃烧
风速
数值分析
circulating fluidized bed
furnace combustion
wind velocity
numerical analysis
