Abstract Both experimental and theoretical works had been done to study the effects of mixture parameters on the performance of corrugated plate (CP) dryer. A water-air experimental branch had been established to simulate water-steam separation in a CP dryer. The effect of ambient relative humidity on the dryer experiment is analyzed. The diameter distribution of water droplets in air-water mixture at (CP) dryer entrance was measured by laser particle size analyzer. The effects of droplet diameter, moisture content and mixture flow velocity on the separation efficiency, pressure drop and the re-entrainment were studied. At the same time, a theoretical model for trajectory tracking of water particle in CP channel was established to illustrate experimental results. The conclusion shows that: 1) this effect of ambient relative humidity cannot be ignored or error could be introduced to experimental results. 2) The separation efficiency increases with the increase of inlet particle size, increases with the increase of inlet moisture content and increases first and then decreases with the increase of inlet velocity. 3) Critical airflow speed of re-entrainment decreases as the inlet moisture content increases. 4) The pressure drop is exponentially increasing with inlet airflow speed.

中文翻译：

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混合参数变化对波纹板干燥机性能的影响

摘要 通过实验和理论研究，研究了混合参数对波纹板（CP）干燥机性能的影响。建立了一个水-空气实验分支来模拟CP干燥器中的水-蒸汽分离。分析了环境相对湿度对干燥机实验的影响。用激光粒度分析仪测量（CP）干燥器入口处空气-水混合物中水滴的直径分布。研究了液滴直径、水分含量和混合物流速对分离效率、压降和再夹带的影响。同时，建立了CP通道中水粒子轨迹跟踪的理论模型来说明实验结果。结论表明：1) 环境相对湿度的这种影响不可忽视，否则可能会给实验结果带来误差。2）分离效率随着入口粒径的增加而增加，随着入口水分含量的增加而增加，随着入口速度的增加先增加后减小。3) 再夹带的临界气流速度随着入口水分含量的增加而降低。4) 压降随入口气流速度呈指数增加。