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Łukasz Makowski
Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland

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Journal article
Published: 25 August 2021 in Processes
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This study is concerned with droplet separation using wave-plate mist separators. The influence of continuous phase velocity, droplet size, and geometry on droplet removal efficiency has been investigated. The following modifications were analysed: drainage channel presence, length, angle, and modification to the streamlined shape. Furthermore, the influence of the physical parameters of the separated substances on separator efficiency was investigated. Calculations were conducted using computational fluid dynamics (CFD). The results were compared with the experimental data from the literature. Based on the results obtained, a new shape of drainage channels was proposed, which is characterised by high droplet removal efficiency with relatively low pressure drop.

ACS Style

Łukasz Makowski; Jakub Łaskowski; Mariusz Tyrański. Influence of Modification of the Geometry of the Wave-Plate Mist Eliminators on the Droplet Removal Efficiency—CFD Modelling. Processes 2021, 9, 1499 .

AMA Style

Łukasz Makowski, Jakub Łaskowski, Mariusz Tyrański. Influence of Modification of the Geometry of the Wave-Plate Mist Eliminators on the Droplet Removal Efficiency—CFD Modelling. Processes. 2021; 9 (9):1499.

Chicago/Turabian Style

Łukasz Makowski; Jakub Łaskowski; Mariusz Tyrański. 2021. "Influence of Modification of the Geometry of the Wave-Plate Mist Eliminators on the Droplet Removal Efficiency—CFD Modelling." Processes 9, no. 9: 1499.

Journal article
Published: 13 June 2021 in Energies
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The deagglomeration of titanium-dioxide powder in water suspension performed in a stirring tank was investigated. Owing to the widespread applications of the deagglomeration process and titanium dioxide powder, new, more efficient devices and methods of predicting the process result are highly needed. A brief literature review of the application process, the device used, and process mechanism is presented herein. In the experiments, deagglomeration of the titanium dioxide suspension was performed. The change in particle size distribution in time was investigated for different impeller geometries and rotational speeds. The modification of impeller geometry allowed the improvement of the process of solid particle breakage. In the modelling part, numerical simulations of the chosen impeller geometries were performed using computational-fluid-dynamics (CFD) methods whereby the flow field, hydrodynamic stresses, and other useful parameters were calculated. Finally, based on the simulation results, the population-balance with a mechanistic model of suspension flow was developed. Model predictions of the change in particle size showed good agreement with the experimental data. Using the presented method in the process design allowed the prediction of the product size and the comparison of the efficiency of different impeller geometries.

ACS Style

Radosław Krzosa; Łukasz Makowski; Wojciech Orciuch; Radosław Adamek. Population Balance Application in TiO2 Particle Deagglomeration Process Modeling. Energies 2021, 14, 3523 .

AMA Style

Radosław Krzosa, Łukasz Makowski, Wojciech Orciuch, Radosław Adamek. Population Balance Application in TiO2 Particle Deagglomeration Process Modeling. Energies. 2021; 14 (12):3523.

Chicago/Turabian Style

Radosław Krzosa; Łukasz Makowski; Wojciech Orciuch; Radosław Adamek. 2021. "Population Balance Application in TiO2 Particle Deagglomeration Process Modeling." Energies 14, no. 12: 3523.

Journal article
Published: 18 March 2021 in Tribology International
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Owing to its low friction coefficient, nanosized MoS2 is as an excellent lubricant additive that can enhance the durability and efficiency of internal combustion engines. Herein, we investigate the application of MoS2-based materials as additives for a 10W-40 engine under different working conditions. To improve rheological and tribological properties, the heterogeneous nucleation was used to deposit MoS2 nanoparticles on surface of different carbon nanomaterials, such as graphene oxide, reduced graphene oxide, and carbon nanotubes, using an impinging jet reactor. Adding MoS2-based nanomaterials enhanced the rheological and tribological properties of the engine oil. At temperatures above 0 °C, adding hybrid materials decreased the friction factor between the engine oil and nanosuspension by up to 55%.

ACS Style

Zuzanna Bojarska; Janusz Kopytowski; Marta Mazurkiewicz-Pawlicka; Piotr Bazarnik; Stanisław Gierlotka; Antoni Rożeń; Łukasz Makowski. Molybdenum disulfide-based hybrid materials as new types of oil additives with enhanced tribological and rheological properties. Tribology International 2021, 160, 106999 .

AMA Style

Zuzanna Bojarska, Janusz Kopytowski, Marta Mazurkiewicz-Pawlicka, Piotr Bazarnik, Stanisław Gierlotka, Antoni Rożeń, Łukasz Makowski. Molybdenum disulfide-based hybrid materials as new types of oil additives with enhanced tribological and rheological properties. Tribology International. 2021; 160 ():106999.

Chicago/Turabian Style

Zuzanna Bojarska; Janusz Kopytowski; Marta Mazurkiewicz-Pawlicka; Piotr Bazarnik; Stanisław Gierlotka; Antoni Rożeń; Łukasz Makowski. 2021. "Molybdenum disulfide-based hybrid materials as new types of oil additives with enhanced tribological and rheological properties." Tribology International 160, no. : 106999.

Journal article
Published: 17 September 2020 in Nanomaterials
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Molybdenum disulfide (MoS2) can be an excellent candidate for being combined with carbon nanomaterials to obtain new hybrid nanostructures with outstanding properties, including higher catalytic activity. The aim of the conducted research was to develop the novel production method of hybrid nanostructures formed from MoS2 and graphene oxide (GO). The nanostructures were synthesized in different weight ratios and in two types of reactors (i.e., impinging jet and semi-batch reactors). Physicochemical analysis of the obtained materials was carried out, using various analytical techniques: particle size distribution (PSD), thermogravimetric analysis (TGA), FT-IR spectroscopy, X-ray diffraction (XRD), and scanning electron microscopy (SEM). Due to the potential application of materials based on MoS2 as the catalyst for hydrogen evolution reaction, linear sweep voltammetry (LSV) of the commercial MoS2, synthesized MoS2 and the obtained hybrid nanostructures was performed using a three-electrode system. The results show that the developed synthesis of hybrid MoS2/GO nanostructures in continuous reactors is a novel and facile method for obtaining products with desired properties. The hybrid nanostructures have shown better electrochemical properties and higher onset potentials compared to MoS2 nanoparticles. The results indicate that the addition of carbon nanomaterials during the synthesis improves the activity and stability of the MoS2 nanoparticles.

ACS Style

Zuzanna Bojarska; Marta Mazurkiewicz-Pawlicka; Stanisław Gierlotka; Łukasz Makowski. Production and Properties of Molybdenum Disulfide/Graphene Oxide Hybrid Nanostructures for Catalytic Applications. Nanomaterials 2020, 10, 1865 .

AMA Style

Zuzanna Bojarska, Marta Mazurkiewicz-Pawlicka, Stanisław Gierlotka, Łukasz Makowski. Production and Properties of Molybdenum Disulfide/Graphene Oxide Hybrid Nanostructures for Catalytic Applications. Nanomaterials. 2020; 10 (9):1865.

Chicago/Turabian Style

Zuzanna Bojarska; Marta Mazurkiewicz-Pawlicka; Stanisław Gierlotka; Łukasz Makowski. 2020. "Production and Properties of Molybdenum Disulfide/Graphene Oxide Hybrid Nanostructures for Catalytic Applications." Nanomaterials 10, no. 9: 1865.

Journal article
Published: 04 September 2020 in Processes
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We applied large eddy simulation (LES) to predict the course of reactive mixing carried out in confined impinging jet reactors (CIJR). The reactive mixing process was studied in a wide range of flow rates both experimentally and numerically using computational fluid dynamics (CFD). We compared several different reactor geometries made in different sizes in terms of both reaction yields and mixing efficiency. Our LES model predictions were validated using experimental data for the tracer concentration distribution and fast parallel chemical test reactions, and compared with the k-ε model supplemented with the turbulent mixer model. We found that the mixing efficiency was not affected by the flow rate only at the highest tested Reynolds numbers. The experimental results and LES predictions were found to be in good agreement for all reactor geometries and operating conditions, while the k-ε model well predicted the trend of changes. The CFD method used, i.e., the modeling approach using closure hypothesis, was positively validated as a useful tool in reactor design. This method allowed us to distinguish the best reactors in terms of mixing efficiency (T-mixer III and V-mixer III) and could provide insights for scale-up and application in different processes.

ACS Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Makowski. Large Eddy Simulations of Reactive Mixing in Jet Reactors of Varied Geometry and Size. Processes 2020, 8, 1101 .

AMA Style

Krzysztof Wojtas, Wojciech Orciuch, Łukasz Makowski. Large Eddy Simulations of Reactive Mixing in Jet Reactors of Varied Geometry and Size. Processes. 2020; 8 (9):1101.

Chicago/Turabian Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Makowski. 2020. "Large Eddy Simulations of Reactive Mixing in Jet Reactors of Varied Geometry and Size." Processes 8, no. 9: 1101.

Journal article
Published: 21 May 2020 in Chemical Engineering Science
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In this report, the authors describe the simple kinetics of molybdenum disulphide nucleation and growth in complex wet chemical synthesis using ammonium heptamolybdate and ammonium sulphide in a vortex jet reactor. The examined reaction allows for the control of the average sizes of nanoparticles, and the obtained products can by purified to obtain a high-quality crystalline material. Each precipitation step can be described quantitatively using the proposed method. To fit the data for population balance equations, nonlinear programming was combined with a suitable objective function. This work shows that it is possible to determine the nucleation and particle growth kinetics for fast and complex reactions in jet reactors.

ACS Style

Michał Wojtalik; Wojciech Orciuch; Łukasz Makowski. Nucleation and growth kinetics of MoS2 nanoparticles obtained by chemical wet synthesis in a jet reactor. Chemical Engineering Science 2020, 225, 115814 .

AMA Style

Michał Wojtalik, Wojciech Orciuch, Łukasz Makowski. Nucleation and growth kinetics of MoS2 nanoparticles obtained by chemical wet synthesis in a jet reactor. Chemical Engineering Science. 2020; 225 ():115814.

Chicago/Turabian Style

Michał Wojtalik; Wojciech Orciuch; Łukasz Makowski. 2020. "Nucleation and growth kinetics of MoS2 nanoparticles obtained by chemical wet synthesis in a jet reactor." Chemical Engineering Science 225, no. : 115814.

Conference paper
Published: 08 February 2018 in Smart Technologies for Energy, Environment and Sustainable Development
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The paper focuses on an application of large eddy simulations to predict a course of complex processes in the non-premixed, turbulent reactive flows of incompressible fluids. The simulations and experiments were carried out in two impinging jet reactors. The subgrid model for concentration variance, supplied with a new dynamic coefficient for the scale-similarity model, which takes into account the spatial variation of the turbulence Reynolds number and depends on the Schmidt number, as well as a numerical cell size, was presented. Obtained numerical results were compared with the experimental data using particle image velocimetry and planar laser induced fluorescence methods for fluids characterized by different Schmidt numbers. The LES method was subsequently used to predict the course of parallel chemical reactions and a precipitation process. In both cases a very good agreement with the experimental results was obtained. Finally, the results of the new model for subgrid-scale diffusivity coefficient are presented.

ACS Style

Łukasz Makowski; Krzysztof Wojtas. Large Eddy Simulations on Selected Problems in Chemical Engineering. Smart Technologies for Energy, Environment and Sustainable Development 2018, 243 -261.

AMA Style

Łukasz Makowski, Krzysztof Wojtas. Large Eddy Simulations on Selected Problems in Chemical Engineering. Smart Technologies for Energy, Environment and Sustainable Development. 2018; ():243-261.

Chicago/Turabian Style

Łukasz Makowski; Krzysztof Wojtas. 2018. "Large Eddy Simulations on Selected Problems in Chemical Engineering." Smart Technologies for Energy, Environment and Sustainable Development , no. : 243-261.

Journal article
Published: 01 December 2017 in Journal of Power Sources
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ACS Style

Paweł Sobieszuk; Anna Zamojska-Jaroszewicz; Łukasz Makowski. Influence of the operational parameters on bioelectricity generation in continuous microbial fuel cell, experimental and computational fluid dynamics modelling. Journal of Power Sources 2017, 371, 178 -187.

AMA Style

Paweł Sobieszuk, Anna Zamojska-Jaroszewicz, Łukasz Makowski. Influence of the operational parameters on bioelectricity generation in continuous microbial fuel cell, experimental and computational fluid dynamics modelling. Journal of Power Sources. 2017; 371 ():178-187.

Chicago/Turabian Style

Paweł Sobieszuk; Anna Zamojska-Jaroszewicz; Łukasz Makowski. 2017. "Influence of the operational parameters on bioelectricity generation in continuous microbial fuel cell, experimental and computational fluid dynamics modelling." Journal of Power Sources 371, no. : 178-187.

Journal article
Published: 01 July 2017 in Chemical Engineering Research and Design
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ACS Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Wysocki; Łukasz Makowski. Modeling and experimental validation of subgrid scale scalar variance at high Schmidt numbers. Chemical Engineering Research and Design 2017, 123, 141 -151.

AMA Style

Krzysztof Wojtas, Wojciech Orciuch, Łukasz Wysocki, Łukasz Makowski. Modeling and experimental validation of subgrid scale scalar variance at high Schmidt numbers. Chemical Engineering Research and Design. 2017; 123 ():141-151.

Chicago/Turabian Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Wysocki; Łukasz Makowski. 2017. "Modeling and experimental validation of subgrid scale scalar variance at high Schmidt numbers." Chemical Engineering Research and Design 123, no. : 141-151.

Article
Published: 02 October 2015 in Chemical Engineering & Technology
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The subgrid closure for fluctuations of the passive scalar in liquids is investigated. Simulation results of the concentration variance based on the literature subgrid-scale models are compared with experimental findings obtained by planar laser-induced fluorescence measurements in a tubular reactor with T-shaped mixing head. The new coefficient for the proposed dynamic subgrid-scale model takes into account the spatial variation of the turbulence Reynolds number and depends on the Schmidt number and the numerical cell size. The model suggested provides excellent predictions of the concentration variance.

ACS Style

Krzysztof Wojtas; Łukasz Makowski; Wojciech Orciuch; Jerzy Bałdyga. Comparison of Subgrid Closure Methods for Passive Scalar Variance at High Schmidt Number. Chemical Engineering & Technology 2015, 38, 2087 -2095.

AMA Style

Krzysztof Wojtas, Łukasz Makowski, Wojciech Orciuch, Jerzy Bałdyga. Comparison of Subgrid Closure Methods for Passive Scalar Variance at High Schmidt Number. Chemical Engineering & Technology. 2015; 38 (11):2087-2095.

Chicago/Turabian Style

Krzysztof Wojtas; Łukasz Makowski; Wojciech Orciuch; Jerzy Bałdyga. 2015. "Comparison of Subgrid Closure Methods for Passive Scalar Variance at High Schmidt Number." Chemical Engineering & Technology 38, no. 11: 2087-2095.

Journal article
Published: 01 June 2015 in Chemical and Process Engineering
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Simulations of turbulent mixing in two types of jet mixers were carried out using two CFD models, large eddy simulation and κ-ε model. Modelling approaches were compared with experimental data obtained by the application of particle image velocimetry and planar laser-induced fluorescence methods. Measured local microstructures of fluid velocity and inert tracer concentration can be used for direct validation of numerical simulations. Presented results show that for higher tested values of jet Reynolds number both models are in good agreement with the experiments. Differences between models were observed for lower Reynolds numbers when the effects of large scale inhomogeneity are important.

ACS Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Makowski. Comparison of Large Eddy Simulations and κ-ε Modelling of Fluid Velocity and Tracer Concentration in Impinging Jet Mixers. Chemical and Process Engineering 2015, 36, 251 -262.

AMA Style

Krzysztof Wojtas, Wojciech Orciuch, Łukasz Makowski. Comparison of Large Eddy Simulations and κ-ε Modelling of Fluid Velocity and Tracer Concentration in Impinging Jet Mixers. Chemical and Process Engineering. 2015; 36 (2):251-262.

Chicago/Turabian Style

Krzysztof Wojtas; Wojciech Orciuch; Łukasz Makowski. 2015. "Comparison of Large Eddy Simulations and κ-ε Modelling of Fluid Velocity and Tracer Concentration in Impinging Jet Mixers." Chemical and Process Engineering 36, no. 2: 251-262.

Journal article
Published: 01 January 2012 in Chemical Engineering Science
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ACS Style

Wojciech Orciuch; Łukasz Makowski; Arkadiusz Moskal; Leon Gradoń. Evolution of the droplet size distribution during a two-phase flow through a porous media: Population balance studies. Chemical Engineering Science 2012, 68, 227 -235.

AMA Style

Wojciech Orciuch, Łukasz Makowski, Arkadiusz Moskal, Leon Gradoń. Evolution of the droplet size distribution during a two-phase flow through a porous media: Population balance studies. Chemical Engineering Science. 2012; 68 (1):227-235.

Chicago/Turabian Style

Wojciech Orciuch; Łukasz Makowski; Arkadiusz Moskal; Leon Gradoń. 2012. "Evolution of the droplet size distribution during a two-phase flow through a porous media: Population balance studies." Chemical Engineering Science 68, no. 1: 227-235.

Journal article
Published: 19 December 2011 in Chemical Engineering Science
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Precipitation of sparingly soluble materials is a fast process, so the way in which reagents are mixed usually affects the particle size distribution (PSD) of precipitated particles. The large eddy simulation (LES) method is used in this work to simulate effects of flow and mixing on precipitation. The LES method is validated in the first part of this work by comparing model predictions with experimental data for fast parallel chemical test reactions carried out in the rectangular channel reactor. Predictions of the non-equilibrium multiple-time-scale mixing model combined with a standard k−ε model and conditional moment closure are also included in the comparison. Also the velocity and scalar concentration distributions are compared with PIV and PLIF experimental data to validate the model. Precipitation model is tested in this part by comparing predictions of the model based on LES with results obtained using the multiple time-scale mixing model combined with the k−ε model. In the second part of this work precipitation of BaSO4 from aqueous solutions of BaCl2 and Na2SO4 carried out at T=298.2 K in a 2-meter long tubular reactor equipped with the impingement T-shaped mixing head is considered. Predictions of both methods of modeling are compared with experimental data.

ACS Style

Łukasz Makowski; Wojciech Orciuch; Jerzy Bałdyga. Large eddy simulations of mixing effects on the course of precipitation process. Chemical Engineering Science 2011, 77, 85 -94.

AMA Style

Łukasz Makowski, Wojciech Orciuch, Jerzy Bałdyga. Large eddy simulations of mixing effects on the course of precipitation process. Chemical Engineering Science. 2011; 77 ():85-94.

Chicago/Turabian Style

Łukasz Makowski; Wojciech Orciuch; Jerzy Bałdyga. 2011. "Large eddy simulations of mixing effects on the course of precipitation process." Chemical Engineering Science 77, no. : 85-94.

Journal article
Published: 31 October 2011 in Chemical Engineering and Processing - Process Intensification
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The way in which reagents are mixed can have a large influence on the product distribution of chemical reactions. To model effects of mixing on various scales on the course of chemical reactions the method of Large Eddy Simulation (LES) of non-premixed, turbulent reactive flows of incompressible fluids is considered in this work. The subgrid modeling of chemical reaction is based on a beta distribution of the mixture fraction in combination with a conditional moment closure based on linear interpolation of local instantaneous reactant concentration values. The predictions obtained with LES are compared with experimental data for fast parallel chemical reactions, the fluid velocity measured using Particle Image Velocity (PIV) technique and the passive tracer concentration measured using the Planar Laser Induced Fluorescence (PLIF) technique. Predictions of the model based on LES are compared as well with results obtained using the non-equilibrium multiple-time-scale mixing model combined with a standard k–ɛ model and employing similar conditional moment closure as LES, applied, however, at larger scale. All comparisons show a very good performance of the model based on LES.

ACS Style

Łukasz Makowski; Jerzy Bałdyga. Large Eddy Simulation of mixing effects on the course of parallel chemical reactions and comparison with k–ɛ modeling. Chemical Engineering and Processing - Process Intensification 2011, 50, 1035 -1040.

AMA Style

Łukasz Makowski, Jerzy Bałdyga. Large Eddy Simulation of mixing effects on the course of parallel chemical reactions and comparison with k–ɛ modeling. Chemical Engineering and Processing - Process Intensification. 2011; 50 (10):1035-1040.

Chicago/Turabian Style

Łukasz Makowski; Jerzy Bałdyga. 2011. "Large Eddy Simulation of mixing effects on the course of parallel chemical reactions and comparison with k–ɛ modeling." Chemical Engineering and Processing - Process Intensification 50, no. 10: 1035-1040.

Journal article
Published: 01 January 2011 in Chemical and Process Engineering
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ACS Style

Łukasz Makowski; Wojciech Orciuch. Local distributions of fluid velocity and tracer concentration in a tank reactor. Chemical and Process Engineering 2011, 32, 33 -40.

AMA Style

Łukasz Makowski, Wojciech Orciuch. Local distributions of fluid velocity and tracer concentration in a tank reactor. Chemical and Process Engineering. 2011; 32 (1):33-40.

Chicago/Turabian Style

Łukasz Makowski; Wojciech Orciuch. 2011. "Local distributions of fluid velocity and tracer concentration in a tank reactor." Chemical and Process Engineering 32, no. 1: 33-40.

Journal article
Published: 01 April 2009 in Chemical Engineering Research and Design
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ACS Style

Jerzy Bałdyga; Łukasz Makowski; Wojciech Orciuch; Caroline Sauter; Heike P. Schuchmann. Agglomerate dispersion in cavitating flows. Chemical Engineering Research and Design 2009, 87, 474 -484.

AMA Style

Jerzy Bałdyga, Łukasz Makowski, Wojciech Orciuch, Caroline Sauter, Heike P. Schuchmann. Agglomerate dispersion in cavitating flows. Chemical Engineering Research and Design. 2009; 87 (4):474-484.

Chicago/Turabian Style

Jerzy Bałdyga; Łukasz Makowski; Wojciech Orciuch; Caroline Sauter; Heike P. Schuchmann. 2009. "Agglomerate dispersion in cavitating flows." Chemical Engineering Research and Design 87, no. 4: 474-484.

Journal article
Published: 01 December 2008 in Chemical Engineering Research and Design
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ACS Style

Jerzy Bałdyga; Łukasz Makowski; Wojciech Orciuch; Caroline Sauter; Heike P. Schuchmann. Deagglomeration processes in high-shear devices. Chemical Engineering Research and Design 2008, 86, 1369 -1381.

AMA Style

Jerzy Bałdyga, Łukasz Makowski, Wojciech Orciuch, Caroline Sauter, Heike P. Schuchmann. Deagglomeration processes in high-shear devices. Chemical Engineering Research and Design. 2008; 86 (12):1369-1381.

Chicago/Turabian Style

Jerzy Bałdyga; Łukasz Makowski; Wojciech Orciuch; Caroline Sauter; Heike P. Schuchmann. 2008. "Deagglomeration processes in high-shear devices." Chemical Engineering Research and Design 86, no. 12: 1369-1381.

Journal article
Published: 01 May 2008 in Industrial & Engineering Chemistry Research
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ACS Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Katarzyna Malik; Gül Özcan-Taşkin; Warren Eagles; Gustavo Padron; Gul Ozcan-Taskin. Dispersion of Nanoparticle Clusters in a Rotor−Stator Mixer. Industrial & Engineering Chemistry Research 2008, 47, 3652 -3663.

AMA Style

Jerzy Bałdyga, Wojciech Orciuch, Łukasz Makowski, Katarzyna Malik, Gül Özcan-Taşkin, Warren Eagles, Gustavo Padron, Gul Ozcan-Taskin. Dispersion of Nanoparticle Clusters in a Rotor−Stator Mixer. Industrial & Engineering Chemistry Research. 2008; 47 (10):3652-3663.

Chicago/Turabian Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Katarzyna Malik; Gül Özcan-Taşkin; Warren Eagles; Gustavo Padron; Gul Ozcan-Taskin. 2008. "Dispersion of Nanoparticle Clusters in a Rotor−Stator Mixer." Industrial & Engineering Chemistry Research 47, no. 10: 3652-3663.

Journal article
Published: 01 March 2008 in Journal of Dispersion Science and Technology
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Theoretical aspects of shear flows of aggregated nanosuspensions are presented and applied to formulate appropriate models. Technological context of this work is related to formulation of stable suspensions of nanoparticles of specific rheological properties by breaking‐up nanoparticle clusters in high shear devices. Accordingly the population balance modeling is applied with kinetics including effects of aggregation, breakage and restructuring of aggregates; effects of suspension rheology on the flow are included as well. Rheological model includes the effect of clustering of primary nanoparticles. Population balances are solved using QMOM that is linked to the CFD code. Results of numerical simulations are presented for laminar and turbulent flows.

ACS Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Andrzej Krasiński; Maciej Malski‐Brodzicki; Katarzyna Malik. Shear Flow of Aggregated Nanosuspensions–Fundamentals and Model Formulation. Journal of Dispersion Science and Technology 2008, 29, 564 -572.

AMA Style

Jerzy Bałdyga, Wojciech Orciuch, Łukasz Makowski, Andrzej Krasiński, Maciej Malski‐Brodzicki, Katarzyna Malik. Shear Flow of Aggregated Nanosuspensions–Fundamentals and Model Formulation. Journal of Dispersion Science and Technology. 2008; 29 (4):564-572.

Chicago/Turabian Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Andrzej Krasiński; Maciej Malski‐Brodzicki; Katarzyna Malik. 2008. "Shear Flow of Aggregated Nanosuspensions–Fundamentals and Model Formulation." Journal of Dispersion Science and Technology 29, no. 4: 564-572.

Journal article
Published: 01 March 2008 in Journal of Dispersion Science and Technology
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A general model for suspension formulation that includes effects of particle breakage and clustering on suspension structure and resulting rheology is applied here to simulate agglomerate dispersion. The model employs the QMOM population balance to simulate variation of agglomerate size and structure in a system of complex geometry. As an example of such system a rotor–stator mixer is applied. Simulations are performed with the CFD code Fluent supplemented with UDFs for process kinetics, aggregate structure, and suspension rheology. A method of application of the population balance equation to describe evolution of fractal aggregates is presented and effects of application of either uniform or erosion daughter distribution are compared.

ACS Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Maciej Malski‐Brodzicki; Katarzyna Malik. Break?Up of Nanoparticle Clusters—Process Modeling. Journal of Dispersion Science and Technology 2008, 29, 555 -563.

AMA Style

Jerzy Bałdyga, Wojciech Orciuch, Łukasz Makowski, Maciej Malski‐Brodzicki, Katarzyna Malik. Break?Up of Nanoparticle Clusters—Process Modeling. Journal of Dispersion Science and Technology. 2008; 29 (4):555-563.

Chicago/Turabian Style

Jerzy Bałdyga; Wojciech Orciuch; Łukasz Makowski; Maciej Malski‐Brodzicki; Katarzyna Malik. 2008. "Break?Up of Nanoparticle Clusters—Process Modeling." Journal of Dispersion Science and Technology 29, no. 4: 555-563.