Analysis of IGT pneumatic conveying data and fast fluidization using a thermohydrodynamic model
Analysis of IGT pneumatic conveying data and fast fluidization using a thermohydrodynamic model
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DOI：
10.1016/0032-5910(79)85009-3
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发表时间：
1979
影响因子：
5.2
通讯作者：
H. Arastoopour;D. Gidaspow
中科院分区：
文献类型：
--
作者：
H. Arastoopour;D. Gidaspow
使用采用两个连续性和两个动量方程的模型计算固体密相垂直气力输送的压降和阻塞。先前已使用非平衡热力学方法推导了所研究的相对运动方程。计算出的压降和阻塞速度与 IGT 高压升力线实验非常吻合。为了将计算结果与数据进行比较，有必要假设未测量的有效颗粒尺寸和入口空隙率。各种流态的阻力相关性的不确定性目前不允许对快速流化进行同样好的数学描述。
Pressure drop and choking were calculated for dense-phase vertical pneumatic conveying of solids using a model employing two continuity and two momentum equations. The relative equation of motion studied has been previously derived using the methods of non-equilibrium thermodynamics.The calculated pressure drops and choking velocities were found to be in a good agreement with IGT high-pressure lift-line experiments. To compare calculations with data, it was necessary to assume an effective particle size and an inlet void fraction which were not measured. Uncertainties in drag correlations for various flow regimes do not at present permit an equally good mathematical description of fast fluidization.