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移动颗粒层过滤除尘的数值模拟及实验对比

SIMULATION RESEARCH ON MOVING GRANULAR BED DUST FILTER AND EXPERIMENTAL CONTRAST
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摘要 通过建立离散颗粒运动数学模型 ,对移动颗粒层过滤除尘器中粉尘颗粒与过滤介质颗粒碰撞以及对除尘效率的影响进行了初步研究。模拟计算了碰撞次数与系统风速之间的变化关系。与实验结果对比发现 ,随系统风速的变化 ,颗粒碰撞频次与除尘效率之间存在定性的一致。颗粒间碰撞作用对移动颗粒层的除尘性能起着重要作用。 A mathematics model to simulate the discrete particle behavior in a moving granular bed dust filter was established.It is found that the collision times between the dust particles and filter particles change with the dusty air velocity,the vibration is quantitatively identical with the changing of dust removal efficiency,which was obtained by experimenos.Preliminary research shows that particles'collision has important on the dust removal efficiency. Key Projects for Fundamental Research,No:G1999022104-4.
出处 《能源研究与利用》 2001年第4期24-28,共5页 Energy Research & Utilization
基金 国家重点基础研究专项经费资助No :G19990 2 2 10 4-4
关键词 离散颗粒 数值模拟 过滤除尘 除尘效率 移动颗粒层 燃气蒸汽联合循环发电 Discrete Particle,Numerical Simulation,Filter Dust Removal
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