This paper reports the effect of Reynolds number, mass loading, and particle shape and size on pressure drop in a vertical gas-solids pneumatic conveying line. We isolate the effect of one variable while holding all others constant. A commonly used pressure drop correlation and a state-of-the-art multiphase computational fluid dynamics (CFD) models are then assessed by comparing their predictions to experimental data. Deficiencies in the models and the correlation are identified, and possible modifications are proposed. The most notable deficiency is the inability of both the experimental correlation and the CFD model to accurately predict the pressure drop for gas-solids flow with highly aspherical particles.
K. H. Henthorn et al., "Measurement and Prediction of Pressure Drop in Pneumatic Conveying: Effect of Particle Characteristics, Mass Loading, and Reynolds Number," Industrial & Engineering Chemistry Research, American Chemical Society (ACS), Jan 2005.
The definitive version is available at http://dx.doi.org/10.1021/ie049505e
Chemical and Biochemical Engineering
Dow Chemical Company
National Science Foundation (U.S.)/Integrative Graduate Education and Research Traineeship. Fellowship for Therapeutic and Diagnostic Devices
National Science Foundation (U.S.) Graduate Research Fellowship
Keywords and Phrases
Gas-Solids; Mass Loading; Particle Shape; Pressure Drop; Reynolds number
Article - Journal
© 2005 American Chemical Society (ACS), All rights reserved.