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Fischer M, Gagnepain E, Dumazer G. Experimental observation and pressure drop modeling of plug formation in horizontal millifluidic hydraulic conveying. Phys Rev E 2024; 109:044906. [PMID: 38755839 DOI: 10.1103/physreve.109.044906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/29/2024] [Indexed: 05/18/2024]
Abstract
The hydraulic conveying of glass beads is studied in a horizontal tube. At low flow rates, plugs can be observed moving across the tube, whereas pseudoplugs can be seen at higher flow rates. A statistical analysis of the plugs' and pseudoplugs' velocities and the plugs' lengths observed is conducted. A transition of the propagation speed distribution is established when the crossing over from a plug to a pseudoplug regime is reached, where the peaked plug velocity distribution turns into a uniform pseudoplug velocity distribution. On the other hand, the statistical distribution of plug lengths exhibits a log-normal mathematical shape. The interpretation of the measured pressure drop evolution with the imposed flow rate by means of an effective viscosity shows an apparent shear-thinning effect coming from the dilution of the granular material. This approach provides a predictive tool for pressure drop calculation in the pseudoplug regime.
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Affiliation(s)
- Marc Fischer
- LGF, UMR No. 5307, Centre SPIN, Mines Saint-Etienne, Université Lyon, 42023 Saint-Etienne, France
| | - Etienne Gagnepain
- LGF, UMR No. 5307, Centre SPIN, Mines Saint-Etienne, Université Lyon, 42023 Saint-Etienne, France
| | - Guillaume Dumazer
- LGF, UMR No. 5307, Centre SPIN, Mines Saint-Etienne, Université Lyon, 42023 Saint-Etienne, France
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2
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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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3
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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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5
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Orozovic O, Lavrinec A, Rajabnia H, Williams K, Jones M, Klinzing G. Transport boundaries and prediction of the slug velocity and layer fraction in horizontal slug flow pneumatic conveying. Chem Eng Sci 2020. [DOI: 10.1016/j.ces.2020.115916] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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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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Zhou J, Han X, Jing S, Liu Y. Efficiency and stability of lump coal particles swirling flow pneumatic conveying system. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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9
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Particle velocity and stationary layer height analysis for modification and validation of particulate Plug-2 pressure drop model. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Zhang P, Tian S, Yang Y, Huang Z, Sun J, Liao Z, Jiang B, Wang J, Yang Y, Xie L, Su H. Flow regime identification in horizontal pneumatic conveying by nonintrusive acoustic emission detection. AIChE J 2019. [DOI: 10.1002/aic.16552] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Peng Zhang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Sihang Tian
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Yao Yang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Zhengliang Huang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Jingyuan Sun
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Zuwei Liao
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Binbo Jiang
- Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Jingdai Wang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Yongrong Yang
- State Key Laboratory of Chemical Engineering, College of Chemical and Biological EngineeringZhejiang University Hangzhou China
| | - Lei Xie
- College of Control Science and EngineeringZhejiang University Hangzhou China
| | - Hongye Su
- College of Control Science and EngineeringZhejiang University Hangzhou China
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Li T, Zhang H, Liu M, Huang Z, Bo H, Dong Y. Experimental investigation on vertical plug formation of coarse particles by a non-mechanical feeder. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.07.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Zhang H, Li T, Huang Z, Kuang S, Yu A. Investigation on vertical plug formation of coarse particles in a non-mechanical feeder by CFD-DEM coupling method. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.03.055] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Rau S, Nied C, Schmidt S, Niedziela D, Lindner J, Sommer K. Multi-phase simulation of pneumatic conveying applying a hydrodynamic hybrid model for the granular phase. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.02.041] [Citation(s) in RCA: 10] [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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Rawat A, Kalman H. Detachment velocity: A borderline between different types of particulate plugs. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.08.043] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Nied C, Lindner J, Sommer K. On the influence of the wall friction coefficient on void fraction gradients in horizontal pneumatic plug conveying measured by electrical capacitance tomography. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.07.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Pressure loss reduction in horizontal plug conveying of granular particles with ultrasonic vibration. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.02.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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