Fundamental Experimental and Modeling Approaches to Pneumatic Transport

主要研究者提出了基础的，实验的， 为气动运输提供更坚实的基础 用于放大和更有效的操作。 自变量 实验探索的是：几何形状（垂直，水平和 直径为1、2和4英寸的管道的倾斜试验段）;颗粒 粒度（2-1000微米）;颗粒密度（1000-7600 kg/m3）;和 不同的流速。 以下因变量是 测量：粒子速度，功率谱密度函数的 颗粒速度传感器，用于测量颗粒团大小，压力波动， 沿管道圆周沿着的压力分布， 滴下，并将目视观察结果记录在录像带上。 这些基本信息将用于建模工作， 解释调查结果并扩大项目规模。

The principal investigator proposes fundamental, experimental, and modelling approaches to pneumatic transport to provide a firmer basis for scale-up and more efficient operation. The independent variables to be explored experimentally are: geometry (vertical, horizontal and inclined test sections of 1, 2, and 4-inch diameter pipes); particle size (2-1000 microns); particle densities (1000-7600 kg/m); and different flow rates. The following dependent variables are to measured: particle velocity, power spectral density function of the particle velocity sensor for cluster sizing, pressure fluctuation, pressure distribution along the circumference of the pipe, pressure drop, and visual observations which will be recorded on videotape. This basic information will be utilized in a modeling effort to interpret the findings and project scale-up.