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Pal R, Ganguly S, De S, Sarkar S, Mukhopadhyay A. A novel recurrence-based approach for investigating multiphase flow dynamics in bubble column reactors. CHAOS (WOODBURY, N.Y.) 2024; 34:023116. [PMID: 38363962 DOI: 10.1063/5.0161459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Accepted: 01/12/2024] [Indexed: 02/18/2024]
Abstract
In chemical industries, multiphase flows in a bubble column reactor are frequently observed. The nonlinearity associated with bubble hydrodynamics, such as bubble-bubble and bubble-liquid interactions, gives rise to complex spatiotemporal patterns with increased gas or liquid velocities, which are extremely difficult to model and predict. In the current study, we propose a new, computationally efficient recurrence-based approach involving the angular separation between suitably defined state vectors and implement it on the experimental multiphase flow variables. The experimental dataset that consists of image frames obtained using a high-speed imaging system is generated by varying air and water flow rates in a bubble column reactor setup. The recurrence plots using the new approach are compared with those derived from conventional recurrence, considering standard benchmark problems. Further, using the recurrence plots and recurrence quantification from the new recurrence methodology, we discover a transition from a high recurrence state to a complex regime with very low recurrence for an increase in airflow rate. Determinism exhibits a rise for the decrease in airflow rate. A sharp decline in determinism and laminarity, signifying the quick shift to complex dynamics, is more prominent for spatial recurrence than temporal recurrence, indicating that the rise in airflow rate significantly impacts the spatial location of bubbles. We identify three regimes that appeared as distinct clusters in the determinism-laminarity plane. The bubbly regime, characterized by high values of determinism and laminarity, is separated by an intermediate regime from the slug flow regime, which has low determinism and laminarity.
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Affiliation(s)
- Ritam Pal
- Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Samriddhi Ganguly
- Department of Production Engineering, Jadavpur University, Kolkata 700032, India
| | - Somnath De
- Department of Aerospace Engineering, Indian Institute of Technology, Madras, Chennai 600 036, India
| | - Sourav Sarkar
- Department of Mechanical Engineering, Jadavpur University, Kolkata 700032, India
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Nedeltchev S, Katerla J, Basiak E. Novel Hybrid Methods for Identifying the Main Transition Velocities in Various Bubble Columns. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2022. [DOI: 10.1252/jcej.21we082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Jakub Katerla
- Institute of Chemical Engineering, Polish Academy of Sciences
| | - Ewelina Basiak
- Institute of Chemical Engineering, Polish Academy of Sciences
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3
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Bu X, Zhou S, Sun M, Alheshibri M, Khan MS, Xie G, Chelgani SC. Exploring the Relationships between Gas Dispersion Parameters and Differential Pressure Fluctuations in a Column Flotation. ACS OMEGA 2021; 6:21900-21908. [PMID: 34497885 PMCID: PMC8412904 DOI: 10.1021/acsomega.1c01955] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 08/06/2021] [Indexed: 06/13/2023]
Abstract
Flotation separation, which is the most important mineral beneficiation technique, is dependent on gas dispersion (hydrodynamic conditions). Thus, many investigations have focused on the precise determination of hydrodynamic conditions such as Reynolds number of the bubbles, bubble velocity, and bubble diameter. However, few studies have examined their relationships with pressure fluctuations in a column flotation. This study introduced the differential pressure fluctuations as an actual variable that could be considered to determine the collection zone's hydrodynamic conditions in a cyclonic microbubble flotation column. In general, the outcomes indicated that superficial gas velocity had the most substantial relationship with the differential pressure fluctuations among other flotation factors (such as pump speed, superficial gas velocity, superficial water velocity, and frother dosage). Furthermore, a high coefficient of determination (R 2 > 0.77) for the equation generated to assess the relationships demonstrated that differential pressure fluctuations could be used as a promising tool to determine the hydrodynamic parameters' characteristics in the flotation columns.
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Affiliation(s)
- Xiangning Bu
- Key
Laboratory of Coal Processing and Efficient Utilization of Ministry
of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Shaoqi Zhou
- Key
Laboratory of Coal Processing and Efficient Utilization of Ministry
of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Meng Sun
- Fengxian
Power Supply Co., Ltd., State Grid Jiangsu
Electric Power Co., Ltd., Fengxian, Jiangsu 221700, China
| | - Muidh Alheshibri
- Department
of Basic Science, Deanship of Preparatory Year and Supporting Studies, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
- Basic
& Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Md. Shakhaoath Khan
- ARC
Research Hub for Computational Particle Technology, Department of
Chemical Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Guangyuan Xie
- Key
Laboratory of Coal Processing and Efficient Utilization of Ministry
of Education, School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, Jiangsu 221116, China
| | - Saeed Chehreh Chelgani
- Minerals
and Metallurgical Engineering, Department of Civil, Environmental
and Natural Resources Engineering, Luleå
University of Technology, SE-971 87 Luleå, Sweden
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A one-dimensional combined multifluid-population balance model for the simulation of batch bubble columns. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2021.03.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Reliable identification of the first transition velocity in various bubble columns based on accurate sophisticated methods. Chem Eng Res Des 2021. [DOI: 10.1016/j.cherd.2020.11.013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Nedeltchev S, Top Y, Hlawitschka MW, Schubert M, Bart H. Identification of the regime boundaries in bubble columns based on the degree of randomness in the signals
†. CAN J CHEM ENG 2020. [DOI: 10.1002/cjce.23719] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Stoyan Nedeltchev
- Chair of Separation Science and TechnologyTU Kaiserslautern Kaiserslautern Germany
- Institute of Chemical EngineeringPolish Academy of Sciences Gliwice Poland
| | - Yasin Top
- Chair of Separation Science and TechnologyTU Kaiserslautern Kaiserslautern Germany
| | - Mark W. Hlawitschka
- Chair of Separation Science and TechnologyTU Kaiserslautern Kaiserslautern Germany
| | | | - Hans‐Jörg Bart
- Chair of Separation Science and TechnologyTU Kaiserslautern Kaiserslautern Germany
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Prakash R, Majumder SK, Singh A. Particle-Laden Bubble Size and Its Distribution in Microstructured Bubbling Bed in the Presence and Absence of a Surface Active Agent. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05625] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ritesh Prakash
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Subrata Kumar Majumder
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Anugrah Singh
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
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Nedeltchev S, Schubert M. Determination of the entropy radial minimum and the various transition velocities in an air-water bubble column. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.03.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Extraction of information and reconstruction entropies from ultrafast X-ray tomography data in a bubble column. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.03.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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11
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Toukan A, Alexander V, AlBazzaz H, Al-Dahhan MH. Identification of flow regime in a cocurrent gas – Liquid upflow moving packed bed reactor using gamma ray densitometry. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.04.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Investigation of the radial effect on the transition velocities in a bubble column based on the modified Shannon entropy. Chem Eng Res Des 2016. [DOI: 10.1016/j.cherd.2016.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Nedeltchev S, Rabha S, Hampel U, Schubert M. A New Statistical Parameter for Identifying the Main Transition Velocities in Bubble Columns. Chem Eng Technol 2016; 38:1940-1946. [PMID: 27570374 PMCID: PMC4981164 DOI: 10.1002/ceat.201400728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2014] [Revised: 09/17/2015] [Accepted: 09/18/2015] [Indexed: 11/08/2022]
Abstract
The identification of the main flow regime boundaries in bubble columns is essential since the degrees of mixing and mass and heat transfer vary with the flow regime. In this work, a new statistical parameter was extracted from the time series of the cross-sectional averaged gas holdup. The measurements were performed in bubble columns by means of conductivity wire-mesh sensors at very high sampling frequency. The columns were operated with an air/deionized water system under ambient conditions. As a flow regime indicator, a new dimensionless statistical parameter called “relative maximum number of visits in a region” was introduced. This new parameter is a function of the difference between the maximum numbers of visits in a region, calculated from two different division schemes of the signal range.
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Affiliation(s)
| | - Swapna Rabha
- Helmholtz-Zentrum Dresden-Rossendorf Dresden, Germany
| | - Uwe Hampel
- Helmholtz-Zentrum Dresden-Rossendorf Dresden, Germany; AREVA Endowed Chair of Imaging Technologies in Energy and Process Engineering, Dresden University of Technology Dresden, Germany
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15
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Al-Dahhan MH. Trends in Minimizing and Treating Industrial Wastes for Sustainable Environment. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.proeng.2016.02.095] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li W, Zhong W, Jin B, Lu Y, He T. Flow patterns and transitions in a rectangular three-phase bubble column. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.04.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li WL, Zhong WQ, Jin BS, Xiao R, He TT. Flow regime identification in a three-phase bubble column based on statistical, Hurst, Hilbert–Huang transform and Shannon entropy analysis. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2013.08.052] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nedeltchev S, Shaikh A. A new method for identification of the main transition velocities in multiphase reactors based on information entropy theory. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2013.03.039] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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20
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Nedeltchev S. Chaotic Analogies in the Operation of Churn–Turbulent Bubble Columns and Bubbling Fluidized Beds. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2012. [DOI: 10.1252/jcej.12we077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Stoyan Nedeltchev
- Institute of Technical Chemistry, Technical University of Braunschweig
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21
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Strasser W, Wonders A. Hydrokinetic optimization of commercial scale slurry bubble column reactor. AIChE J 2011. [DOI: 10.1002/aic.12629] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Nedeltchev S, Shaikh A, Al-Dahhan M. Flow Regime Identification in a Bubble Column via Nuclear Gauge Densitometry and Chaos Analysis. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201000308] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Nedeltchev S. Application of Chaos Analysis for the Investigation of Turbulence in Heterogeneous Bubble Columns. Chem Eng Technol 2009. [DOI: 10.1002/ceat.200900336] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Nedeltchev S, Shaikh A, Al-Dahhan M. Prediction of The Kolmogorov Entropy Derived from CT Data in a Bubble Column Operated under The Transition Regime and Ambient Pressure. Chem Eng Technol 2007. [DOI: 10.1002/ceat.200700053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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26
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Nedeltchev S, Jordan U, Lorenz O, Schumpe A. Identification of Various Transition Velocities in a Bubble Column Based on Kolmogorov Entropy. Chem Eng Technol 2007. [DOI: 10.1002/ceat.200600344] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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