对脉动流化床内换热面与床层的传热特性进行了试验研究,试验中观察到的脉动床最大传热速率比普通流化床的传热速率提高15%左右,对于较大直径的颗粒,脉动流化床的传热效果更突出;
The results show that the heat transfer rate in a pulsed fluidized bed is 15%greater than that in a normal fluidized bed. The bigger the particles, the higher the heat transfer efficiency.
研究了流化数、射流初始速度、颗粒平均粒径及静态床层高度对射流脉动特性的影响。
The effects of fluidization number, injection velocity, particle mean diameter and static bed height on jet fluctuation are discussed.
主要目的是考察粗颗粒床层对压力脉动的影响。
The main purpose of the studies was to show the effect of coarse particles on pressure fluctuation.
在实际操作过程中,选择合理的床层静止高度和气流脉动频率对提高传热系数有利。
In practice, choosing the static height of the bed layer and the frequency of the gas pulsation properly can increase the heat transfer coefficient.
对流化床压降脉动的分析可知,采用具有较宽粒度分布的大颗粒物料,有利于改善流化床的流化质量。
It has known by analysis of pressure drop fluctuation that quality of fluidization can be improved with wider size distribution particle.
气流温度是影响干燥过程降水幅度的重要参数,床层静止高度及脉动频率对干燥过程的影响很小。
The air temperature is the most important parameter in the relationship of current humidity vs drying time. Static bed height as well as pulsation frequency has some influence on the drying process.
根据压强脉动信号波形和频域的分析结果,研究了三相流化床不同空间位置压强的脉动特征。
Accordimg to the results of wave form and frequency domain analyses of pressure fluctuation signals, characteristics of pressure fluctuation at different space locations were discussed.
研究了上升初期脉动水流的速度和加速度特性及其对分选的影响,为研究不同风水操作制度对床层松散状况的影响提供了理论依据。
The character of velocity and acceleration of pulsated-water during the upward period and their influence on the jigging separation has been studied.
研究了上升初期脉动水流的速度和加速度特性及其对分选的影响,为研究不同风水操作制度对床层松散状况的影响提供了理论依据。
The character of velocity and acceleration of pulsated-water during the upward period and their influence on the jigging separation has been studied.
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