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Matzke M, Behrens C, Jongebloed N, Steins D, Ulbricht M, Schultz HJ. Investigation and Visualization of Flow Fields in Stirred Tank Reactors Using a Fluorescence Tracer Method. CHEM-ING-TECH 2022. [DOI: 10.1002/cite.202200006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Marian Matzke
- University of Applied Sciences Niederrhein Faculty of Chemistry Department of Chemical Engineering and Institute for Coatings and Surface Chemistry (ILOC) Adlerstraße 32 47798 Krefeld Germany
- University of Duisburg-Essen Chair of Technical Chemistry II Universitätsstraße 7 45141 Essen Germany
| | - Cheryl Behrens
- University of Applied Sciences Niederrhein Faculty of Chemistry Department of Chemical Engineering and Institute for Coatings and Surface Chemistry (ILOC) Adlerstraße 32 47798 Krefeld Germany
| | - Niklas Jongebloed
- University of Applied Sciences Niederrhein Faculty of Chemistry Department of Chemical Engineering and Institute for Coatings and Surface Chemistry (ILOC) Adlerstraße 32 47798 Krefeld Germany
| | - Dominik Steins
- University of Applied Sciences Niederrhein Faculty of Chemistry Department of Chemical Engineering and Institute for Coatings and Surface Chemistry (ILOC) Adlerstraße 32 47798 Krefeld Germany
| | - Mathias Ulbricht
- University of Duisburg-Essen Chair of Technical Chemistry II Universitätsstraße 7 45141 Essen Germany
| | - Heyko Jürgen Schultz
- University of Applied Sciences Niederrhein Faculty of Chemistry Department of Chemical Engineering and Institute for Coatings and Surface Chemistry (ILOC) Adlerstraße 32 47798 Krefeld Germany
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2
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Gu D, Li X, Wang Y, Xu H, Ye M, Wen L. Floating particles mixing characteristics in an eccentric stirred tank coupled with dislocated fractal impellers. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2022. [DOI: 10.1515/ijcre-2021-0303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The mixing characteristics of floating particle dispersion process in an eccentric stirred tank with dislocated fractal impellers were investigated using computational fluid dynamics (CFD) and experimental analyses. Solid concentration distribution, axial solid concentration profile, cloud height, solid integrated velocity, power consumption and just drawdown speed were investigated. Results showed that dislocated fractal impeller can enhance solid integrated velocity and fluid turbulent fluctuation intensity compared with dislocated pitched blade impeller, and eccentric agitation coupled with dislocated fractal impeller could destroy the typical circulation loops and symmetric flow field and improve the axial circulation efficiency of floating particles on the basis of dislocated fractal impeller. Eccentric agitation coupled with dislocated fractal impeller could further enhance the floating particle dispersion homogeneity (MI) and decrease the just drawdown speed (N
jd) on the basis of dislocated fractal impeller and dislocated pitched blade impeller at the specific power consumption. Meanwhile, eccentric ratio of 0.3 or 0.4 was optimal for the floating particle mixing process in this work.
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Affiliation(s)
- Deyin Gu
- School of Environment and Resources , Chongqing Technology and Business University , Chongqing 400060 , China
| | - Xin Li
- Chongqing HuanDing Environmental Protection Engineering Co., Ltd. , Chongqing 401320 , China
| | - Yi Wang
- School of Environment and Resources , Chongqing Technology and Business University , Chongqing 400060 , China
| | - Hui Xu
- School of Environment and Resources , Chongqing Technology and Business University , Chongqing 400060 , China
| | - Mei Ye
- School of Environment and Resources , Chongqing Technology and Business University , Chongqing 400060 , China
| | - Li Wen
- School of Environment and Resources , Chongqing Technology and Business University , Chongqing 400060 , China
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3
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Furukawa H, Mabuchi Y, Kato Y. Drawdown of Floating Solid in Mixing Vessel with Inside Baffle. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2022. [DOI: 10.1252/jcej.21we085] [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)
- Haruki Furukawa
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
| | - Yuya Mabuchi
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
| | - Yoshihito Kato
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology
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4
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Numerical Investigation on the Effects of Impeller Structures in Hot Metal Desulfurization Processes by Mechanical Stirring. METALS 2022. [DOI: 10.3390/met12020229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
With the increasing demand for high-quality steel, the requirements for the efficiency and stability of deep desulfurization are increasing too. The Kanbara Reactor (KR) is widely accepted around the world because of its high efficiency and economy. In order to destroy the rigid motion of molten iron in this area, two kinds of blade structures are designed and compared with traditional blades. In this study, a three-dimensional transient coupling mathematical model was established by using volume of fluid (VOF) and discrete phase model (DPM) to simulate the KR desulfurization process. The turbulence intensity of the molten iron, main vortex size and desulfurizing agent (DA) particle distributions for the three impeller models were investigated in detail. Model results showed that the staggered blade structure may improve the desulfurization efficiency of the KR process, and the desulfurization rate increases from 95.7% to 97.1% when compared with ordinary blades. The main reason for this can be attributed to the enhanced turbulence intensity of the molten iron, larger main vortex size and more uniform DA particle distributions. Plant tests also showed that the desulfurizer consumption per 1 ppm sulfur for the staggered blades was reduced by approximately 8.6%.
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5
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Angelopoulou D, Meunier V, Forny L, Niederreiter G, Palzer S, Salman AD. Influence of localized thermal effects on the reconstitution kinetics of lactose-coated whole milk powder. Food Res Int 2021; 150:110774. [PMID: 34865789 DOI: 10.1016/j.foodres.2021.110774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 10/04/2021] [Accepted: 10/18/2021] [Indexed: 11/16/2022]
Abstract
Reconstitution of dairy powders is strongly influenced by the presence and physical state of fat on the particle surface. The present study investigates the effect of a micronized lactose coating on the physical state of the fat and the reconstitution kinetics of whole milk powder at four different temperatures (4/21/40/60 °C) and two stirring rates (400/800 rpm). For this purpose, two types of micronized lactose were used as coating materials: crystalline and amorphous. At 4 °C and 21 °C, the coated powders sink and are reconstituted faster than pure whole milk powder, regardless of the stirring rate applied. At 40/60 °C and 400 rpm, although the amorphous micronized lactose coating leads to a significant decrease in the reconstitution time, the crystalline coating has the opposite effect (or no effect). This discrepancy is related to the large differences in terms of dissolution enthalpy between the two micronized lactose physical states. It is posited that the dissolution of the coating material causes a temperature shift at the powder-water interface which could hamper the complete melting of surface fat and influence its viscosity, thereby affecting wetting and sinking. These differences are overcome at a high stirring rate (800 rpm) or if agglomerated whole milk powder is used as the host material.
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Affiliation(s)
- Diamanto Angelopoulou
- Department of Chemical and Biological Engineering, University of Sheffield, S1 3JD Sheffield, UK
| | - Vincent Meunier
- Nestlé Research, Vers-chez-les-blanc, 1000 Lausanne 26, Switzerland
| | - Laurent Forny
- Nestlé Product Technology Center, Route de Chavornay 3, 1350 Orbe, Switzerland
| | | | - Stefan Palzer
- Nestlé SA, Avenue Nestlé 55, 1800 Vevey, Switzerland
| | - Agba D Salman
- Department of Chemical and Biological Engineering, University of Sheffield, S1 3JD Sheffield, UK.
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6
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An W, Zhang Q, Zhao J, Qu L, Liu S, Yang M, Xu J. Mechanism Investigation on a Novel Oil Recovery Skimmer Coupling Free Surface Vortex and Cyclone Separation. ACS OMEGA 2021; 6:20483-20491. [PMID: 34395995 PMCID: PMC8359138 DOI: 10.1021/acsomega.1c02506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Accepted: 07/21/2021] [Indexed: 06/12/2023]
Abstract
In consideration of offshore oil spill accidents, a mechanical method is a kind of widely used treatment methods to recover spilled oil at sea. It also has the advantages of low cost, convenient use, and environmental friendliness. In order to improve the recovery efficiency and oil content of liquid recovered, a novel mechanical spilled oil recovery philosophy coupling surface vortex and hydrocyclone separation was proposed, and a small-scale prototype was manufactured. Medium crude from Bohai oil field was applied as spilled oil to test the recovery property of the prototype skimmer. The experiment results show that the novel skimmer is able to recover spilled oil effectively on the sea surface and speed up the process of recovery. Pressure of overflow pipe is sensitive to pump frequency, flow rate of inlet, and split ratio. In addition, oil content at the overflow port is influenced by spilled oil amount on the surface and split ratio. Besides, linear relationship is found between the recovery efficiency and the split ratio. The experimental study can provide a technical reference for the treatment of a small amount of spilled oil on the water surface and also has great significance for the design of spilled oil recovery equipment.
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Affiliation(s)
- Wei An
- CNOOC
Energy Technology & Services Limited, Safety & Environmental Protection Branch, Tianjin 300452, China
| | - Qingfan Zhang
- CNOOC
Energy Technology & Services Limited, Safety & Environmental Protection Branch, Tianjin 300452, China
| | - Jianping Zhao
- CNOOC
Energy Technology & Services Limited, Safety & Environmental Protection Branch, Tianjin 300452, China
| | - Liang Qu
- Tianjin
Branch of CNOOC (China) Limited, Tianjin 300459, China
| | - Shuo Liu
- Institute
of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
| | - Meng Yang
- Institute
of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
- School
of Engineering Sciences, University of Chinese
Academy of Sciences, Beijing 100049, China
| | - Jingyu Xu
- Institute
of Mechanics, Chinese Academy of Sciences, Beijing 100190, China
- School
of Engineering Sciences, University of Chinese
Academy of Sciences, Beijing 100049, China
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7
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Affiliation(s)
- Stefan Wollny
- Hochschule Anhalt Fachbereich Angewandte Biowissenschaften und Prozesstechnik Professur Technische Strömungsmechanik Bernburger Straße 55 06366 Köthen Deutschland
| | - Reinhard Sperling
- Hochschule Anhalt Fachbereich Angewandte Biowissenschaften und Prozesstechnik Professur Technische Strömungsmechanik Bernburger Straße 55 06366 Köthen Deutschland
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8
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Tracking of powder lump formation and dispersion with the use of FBRM technology and video recordings. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2020.03.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Gu D, Shi X, Liu Z. Intensification on drawdown process of floating particles by circle package fractal impellers. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2019.09.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Effects of geometrical and physical factors on light particles dispersion by agitation characteristic curve. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2019.02.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Li M, Tan Y, Sun J, Xie D, Liu Z. Drawdown mechanism of light particles in baffled stirred tank for the KR desulphurization process. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.05.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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13
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Liu Z, Li M, Xu W, Ouyang D, Li M, Li Z, Xie D, Sun J. On the Agitation Characteristic Curve of Medium Light Particles in a Stirred Tank Based on CFD Simulation. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2018. [DOI: 10.1252/jcej.17we140] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zeng Liu
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
- Hubei Key Laboratory of Naval Architecture and Ocean Engineering, Hydrodynamics, Huazhong University of Science and Technology
- Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration
| | - Meng Li
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
| | - Wentao Xu
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
| | - Degang Ouyang
- Research and Development Centre of Wuhan Iron and Steel Co., Ltd
| | - Minghui Li
- Research and Development Centre of Wuhan Iron and Steel Co., Ltd
| | - Zhishan Li
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
| | - De Xie
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
- Hubei Key Laboratory of Naval Architecture and Ocean Engineering, Hydrodynamics, Huazhong University of Science and Technology
- Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration
| | - Jianglong Sun
- Department of Naval Architecture and Ocean Engineering, Huazhong University of Science and Technology
- Hubei Key Laboratory of Naval Architecture and Ocean Engineering, Hydrodynamics, Huazhong University of Science and Technology
- Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration
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14
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Wood T, Simmons MJ, Stitt EH. Optimisation of stirred vessel geometry for the drawdown and incorporation of floating solids to prepare concentrated slurries. Chem Eng Res Des 2018. [DOI: 10.1016/j.cherd.2018.03.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Wood T, Simmons MJH, Greenwood RW, Stitt EH. Concentrated slurry formation via drawdown and incorporation of wettable solids in a mechanically agitated vessel. AIChE J 2018. [DOI: 10.1002/aic.16121] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Thomas Wood
- Johnson Matthey Technology Centre, Johnson MattheyBelasis Avenue, Billingham, TS23 1LB U.K
- School of Chemical EngineeringUniversity of BirminghamBirmingham, B15 2TT U.K
| | - Mark J. H. Simmons
- School of Chemical EngineeringUniversity of BirminghamBirmingham, B15 2TT U.K
| | | | - E. Hugh Stitt
- Johnson Matthey Technology Centre, Johnson MattheyBelasis Avenue, Billingham, TS23 1LB U.K
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16
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Liu B, Zheng Y, Chen M, Chen X, Jin Z. CFD simulation of the mixing and dispersing of floating particles in a viscous system. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2017. [DOI: 10.1590/0104-6632.20170344s20160379] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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17
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Komrakova A, Liu Z, Machado M, Kresta S. Development of a zone flow model for the confined impeller stirred tank (CIST) based on mean velocity and turbulence measurements. Chem Eng Res Des 2017. [DOI: 10.1016/j.cherd.2017.07.025] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Deshpande S, Kar K, Walker J, Pressler J, Su W. An experimental and computational investigation of vortex formation in an unbaffled stirred tank. Chem Eng Sci 2017. [DOI: 10.1016/j.ces.2017.04.002] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Paglianti A, Carletti C, Busciglio A, Montante G. Solid distribution and mixing time in stirred tanks: The case of floating particles. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alessandro Paglianti
- Dipartimento di Ingegneria Civile, Chimica, Ambientale e dei Materiali; Alma Mater Studiorum − Università di Bologna; via Terracini 34, 40131 Bologna Italy
| | - Claudio Carletti
- Dipartimento di Chimica Industriale ”Toso Montanari”; Alma Mater Studiorum − Università di Bologna; via Terracini 34, 40131 Bologna Italy
| | - Antonio Busciglio
- Dipartimento di Chimica Industriale ”Toso Montanari”; Alma Mater Studiorum − Università di Bologna; via Terracini 34, 40131 Bologna Italy
| | - Giuseppina Montante
- Dipartimento di Chimica Industriale ”Toso Montanari”; Alma Mater Studiorum − Università di Bologna; via Terracini 34, 40131 Bologna Italy
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20
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Myers KJ, Pandit AK, Janz EE, Fasano JB. Impeller diameter and submergence effects in solids drawdown with up-pumping impellers. CAN J CHEM ENG 2017. [DOI: 10.1002/cjce.22766] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kevin J. Myers
- Chemical and Materials Engineering; University of Dayton; Dayton OH 45469 USA
| | - Anand K. Pandit
- Chemical and Materials Engineering; University of Dayton; Dayton OH 45469 USA
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21
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Li LC, Xu B. CFD simulation of floating particles suspension in a stirred tank. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0128-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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22
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Liu B, Zheng Y, Chen M, Huang B, Jin Z. Experimental study on the mixing and dispersing of floating particles in viscous system. CAN J CHEM ENG 2016. [DOI: 10.1002/cjce.22581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Baoqing Liu
- Institute of Process Equipment, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 Zhejiang China
| | - Yijun Zheng
- Institute of Process Equipment, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 Zhejiang China
| | - Mingqiang Chen
- Institute of Process Equipment, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 Zhejiang China
| | - Bolin Huang
- Institute of Process Equipment, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 Zhejiang China
| | - Zhijiang Jin
- Institute of Process Equipment, College of Chemical and Biological Engineering; Zhejiang University; Hangzhou 310027 Zhejiang China
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23
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Effect of impeller type and density difference on the draw down of low density microspheres. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.09.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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Abstract
AbstractThis review evaluates computational fluid dynamic applications to analyze solid suspension quality in stirred vessels. Most researchers typically employ either Eulerian-Eulerian or Eulerian-Lagrangian approach to investigate multiphase flow in stirred vessels. With sufficient computational resources, the E-L approach simulates flow structures with higher spatial resolution for dispersed multiphase flows. Common turbulence models such as the two-equation eddy-viscosity models (
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25
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Li Z, Derksen JJ, Gao Z. Models and Applications for Simulating Turbulent Solid–Liquid Suspensions in Stirred Tanks. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2015. [DOI: 10.1252/jcej.14we056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhipeng Li
- School of Engineering, University of Aberdeen
- State Key Laboratory of Chemical Resource Engineering, School of Chemical Engineering, Beijing University of Chemical Technology
| | - J. J. Derksen
- Chemical Engineering, Delft University of Technology
- School of Engineering, University of Aberdeen
| | - Zhengming Gao
- State Key Laboratory of Chemical Resource Engineering, School of Chemical Engineering, Beijing University of Chemical Technology
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26
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Montante G, Paglianti A. Fluid dynamics characterization of a stirred model bio-methanation digester. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2014.05.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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27
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Qiao S, Wang R, Yang X, Yan Y. CFD simulation of complete drawdown of floating solids in a stirred tank. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22097] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shengchao Qiao
- School of Chemical Engineering & Technology; Tianjin University; Tianjin 300072 PR China
| | - Rijie Wang
- School of Chemical Engineering & Technology; Tianjin University; Tianjin 300072 PR China
| | - Xiaoxia Yang
- School of Chemical Engineering & Technology; Tianjin University; Tianjin 300072 PR China
| | - Yuefei Yan
- School of Chemical Engineering & Technology; Tianjin University; Tianjin 300072 PR China
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28
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Wójtowicz R. Choice of an Optimal Agitated Vessel for the Drawdown of Floating Solids. Ind Eng Chem Res 2014. [DOI: 10.1021/ie500604q] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ryszard Wójtowicz
- Institute of Thermal and
Process Engineering, Division of Industrial Equipment, Cracow University of Technology, Al. Jana Pawła II 37, 31-864 Cracow, Poland
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29
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Qiao S, Wang R, Yan Y, Yang X. Computational fluid dynamics analysis to effects of geometrical design and physical property on complete suspension of floating solids in stirred tanks. ASIA-PAC J CHEM ENG 2014. [DOI: 10.1002/apj.1835] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Shengchao Qiao
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Rijie Wang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Yuefei Yan
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
| | - Xiaoxia Yang
- School of Chemical Engineering and Technology; Tianjin University; Tianjin 300072 China
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30
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Qiao S, Wang R, Yang X, Yan Y. CFD Prediction of Effects of Impeller Design on Floating Solids Mixing in Stirred Tanks with Pitched Blade Turbines. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2014. [DOI: 10.1252/jcej.13we313] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Shengchao Qiao
- School of Chemical Engineering and Technology, Tianjin University
| | - Rijie Wang
- School of Chemical Engineering and Technology, Tianjin University
| | - Xiaoxia Yang
- School of Chemical Engineering and Technology, Tianjin University
| | - Yuefei Yan
- School of Chemical Engineering and Technology, Tianjin University
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31
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Machado MB, Kresta SM. The confined impeller stirred tank (CIST): A bench scale testing device for specification of local mixing conditions required in large scale vessels. Chem Eng Res Des 2013. [DOI: 10.1016/j.cherd.2013.06.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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32
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Fluid-dynamics characteristics of a vortex-ingesting stirred tank for biohydrogen production. Chem Eng Res Des 2013. [DOI: 10.1016/j.cherd.2013.04.008] [Citation(s) in RCA: 15] [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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33
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Myers KJ, Jones JK, Janz EE, Fasano JB. Effect of liquid level and agitator pumping direction on turbulent blend times. CAN J CHEM ENG 2013. [DOI: 10.1002/cjce.21868] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kevin J. Myers
- Chemical and Materials Engineering; University of Dayton; Dayton, OH 45469 U.S.A
| | - Jeremy K. Jones
- Chemical and Materials Engineering; University of Dayton; Dayton, OH 45469 U.S.A
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34
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Sajjadi B, Raman AAA, Shah RSSRE, Ibrahim S. Review on Applicable breakup/coalescence models in turbulent liquid-liquid flows. REV CHEM ENG 2013. [DOI: 10.1515/revce-2012-0014] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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35
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Montante G, Paglianti A, Magelli F. Analysis of dilute solid–liquid suspensions in turbulent stirred tanks. Chem Eng Res Des 2012. [DOI: 10.1016/j.cherd.2012.01.009] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Atibeni R, Gao Z, Bao Y. Effect of baffles on fluid flow field in stirred tank with floating particles by using PIV. CAN J CHEM ENG 2012. [DOI: 10.1002/cjce.21652] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Waghmare Y, Falk R, Graham L, Koganti V. Drawdown of floating solids in stirred tanks: scale-up study using CFD modeling. Int J Pharm 2011; 418:243-53. [PMID: 21624447 DOI: 10.1016/j.ijpharm.2011.05.039] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2010] [Revised: 04/27/2011] [Accepted: 05/14/2011] [Indexed: 11/18/2022]
Abstract
This work shows development of a scale up correlation using computational fluid dynamic (CFD) simulations for floating solids drawdown operation in stirred tanks. Discrete phase modeling (DPM) simulations were used in conjunction with the lab scale experimental measurements to develop a semi-empirical correlation for the prediction of rate of drawdown of floating solid particles. The rate was correlated to average liquid velocity at the free liquid surface. Since, this correlation is based on a fundamental hydrodynamic parameter, velocity, rather than an operating parameters such as the impeller speed, it can be used for a variety of impeller types and tank geometries. The correlation was developed based on the data obtained from the 2L tank using four different tank designs and was validated against the data obtained from the 10L scale tank. The correlation was further extended to the pilot and the commercial scale tanks ranging from 40L to 4000L scale based solely on the CFD model.
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Affiliation(s)
- Yogesh Waghmare
- Bend Research Inc., 64550 Research Rd., Bend, OR 97701, United States.
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Cope RF, Somasi M, Kar KK. Solids distribution in tall tanks. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20552] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Chen T, Wang LQ, Wu DZ, Sun YB, Wu B, Li ZF. Investigation of the mechanism of low-density particle and liquid mixing process in a stirred vessel. CAN J CHEM ENG 2011. [DOI: 10.1002/cjce.20578] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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