功耗是搅拌反应器设计和放大过程的重要参数。在圆柱形搅拌槽内通过实验研究了相对液体体积、转速和物料高度对功耗的影响，采用离散元方法(DEM)，用Hertz-Mindlin with JKR模型模拟了不同相对液体体积颗粒的黏结力对功耗的影响。结果表明，随相对液体体积增大，功耗呈先增大后减小的变化趋势，在相对液体体积为0.0162时达到最大值。随转速增大，功耗增长变快，但随相对液体体积增大，转速对功耗的影响指数呈先减小后增大的趋势。不同物料高度的功耗最大值均为饱和颗粒的1.8倍，不同物料高度的单位质量功耗随相对液体体积的增长速率几乎一致。提出了新的间接测量颗粒间黏结力的方法，发现功耗与黏结力呈线性关系。

Power consumption is an important parameter in the design and scale-up of stirred tank reactors. The effects of relative liquid volume, rotational speed and fill level on power consumption were experimentally investigated in a cylindrical stirred tank. The discrete element method (DEM) and Hertz-Mindlin with JKR model were used to investigate the effect of the adhesion force of particles with different relative liquid volumes on the power consumption. Results showed that the power consumption first increased and then decreased with the increase of the relative liquid volume, and reached a maximum when the relative liquid volume was 0.0162. With the increase of the rotational speed, the power consumption increased faster, but the rotational speed influence index on the power consumption decreased first and then increased with the increase of the relative liquid volume. The maximum power consumption was about 1.8 times of the power consumption with saturated particles. A new method for indirect measurement of cohesion between particles was proposed, and a linear relationship between power consumption and cohesion was obtained.