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Electrical capacitance tomography-based estimation of slug flow parameters in horizontally aligned pneumatic conveyors. POWDER TECHNOL 2023. [DOI: 10.1016/j.powtec.2023.118418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
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Lotfiman S, Bhattacharya S, Parthasarathy R. A novel approach for measuring particle settling and settled bed build-up velocities in concentrated slurries using electrical resistance tomography. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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An experimental investigation on plug formation using fuzzy cottonseeds. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Orozovic O, Rajabnia H, Lavrinec A, Meylan M, Williams K, Jones M, Klinzing G. An inequality relating fundamental parameters of horizontal slug flow pneumatic conveying. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2021.11.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Orozovic O, Rajabnia H, Lavrinec A, Alkassar Y, Meylan M, Williams K, Jones M, Klinzing G. A phenomenological model for the pressure drop applicable across both dilute and dense phase pneumatic conveying. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116992] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Zhou J, Shangguan L, Gao K, Wang Y, Hao Y. Numerical study of slug characteristics for coarse particle dense phase pneumatic conveying. POWDER TECHNOL 2021. [DOI: 10.1016/j.powtec.2021.07.024] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Velocity and porosity relationships within dense phase pneumatic conveying as studied using coupled CFD-DEM. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.07.070] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abstract
Abstract
Any scientific behavior is best represented by nondimensional numbers. However, in many cases, for pneumatic conveying systems, dimensional equations are developed and used. In some cases, many of the nondimensional equations include Reynolds (Re) and Froude (Fr) numbers; they are usually defined for a limited range of materials and operating conditions. This study demonstrates that most of the relevant flow types, whether in horizontal or vertical pipes, can be better described by Re and Archimedes (Ar) numbers. Ar can also be used in hydraulic conveying systems. This paper presents many threshold velocities that are accurately defined by Re as a simple power function of Ar. Many particulate materials are considered by Ar, thereby linking them to a common behavior. Using various threshold velocities, a flow regime chart for horizontal conveying is presented in this paper.
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Affiliation(s)
- Haim Kalman
- Aaron Fish Chair of Mechanical Engineering – Fracture Mechanics, Laboratory for Conveying and Handling of Particulate Solids (CHoPS-Lab), Ben-Gurion University of the Negev , Department of Mechanical Engineering , Beer-Sheva , 84105, Israel
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