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Erschienen in:
2020 | OriginalPaper | Buchkapitel
Pressure Drop in Vertical Pneumatic Conveying: Comparison Between Numerical Predictions with Existing Correlations
verfasst von : Pandaba Patro, Debasis Mishra
Erschienen in: Advances in Applied Mechanical Engineering
Verlag: Springer Singapore
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Abstract
Numerical simulations using Euler-Euler model (also known as two-fluid model) were used to predict pressure drop in pneumatic conveying (i.e., gas-solid flows) in vertical pipes. Standard \(k - \varepsilon\) turbulence model has been used for gas phase, and kinetic theory of granular flows (KTGF) was used to close solid phase stresses and solid pressure aroused due to inter-particle collisions. The model was validated by comparison with the available experimental data and good agreement was found for pressure drop prediction. The effect of important flow parameters like gas phase Reynolds number, solid loading ratio and particle density on pressure drop was investigated. It was observed that pressured drop increased with gas velocity and solid loading ratio. Finally, computed results for pressure drop are compared with the existing correlations. Present predictions showed good agreement with the correlations of (Reddy and Pei in Ind Eng Chem Fundam 8:490–497, 1969 [1], Capes and Nakamura in Can J Chem Eng 51:31–38, 1973 [2]) data.