The flow of non-cohesive solids through orifices

✍ Scribed by N. Al-Din; D.J. Gunn

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 734 KB
• Volume: 39
• Category: Article
• ISSN: 0009-2509
• DOI: 10.1016/0009-2509(84)80137-2

✦ Synopsis

The rate of flow of glass ballotini, and fluidisable cracking catalyst through long rectangular orifices has been measured. When these measurements and others reported in the literature were tested against the correlations of Fowler and Glastonbury. and Beverloo et al. a significant scatter of the available 109 data points about the correlations was found. Underlying trends in the set of measurements were analysed to show effects of the shape of orifice, shape of particles and the ratio of orifice width or diameter to particle size. The form of correlation in terms of dimensionless groups is inferred and the best values of constants found by regression. The experimental data were correlated with standard deviation of + 12% by the equation Two principal methods of using the correlation are proposed.