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Modern Drying Technology, Volume 1, Computational Tools at Different Scales

ISBN: 978-3-527-63163-6
359 pages
February 2011
Modern Drying Technology, Volume 1, Computational Tools at Different Scales (3527631631) cover image


The five-volume series provides a comprehensive overview of all important aspects of drying technology like computational tools at different scales (Volume 1), modern experimental and analytical techniques (Volume 2), product quality and formulation (Volume 3), energy savings (Volume 4) and process intensification (Volume 5).

Based on high-level cutting-edge results contributed by internationally recognized experts in the various treated fields, this book series is the ultimate reference in the area of industrial drying. Located at the intersection of the two main approaches in modern chemical engineering, product engineering and process systems engineering, the series aims at bringing theory into practice in order to improve the quality of high-value dried products, save energy, and cut the costs of drying processes.

In Volume 1, diverse model types for the drying of products and the design of drying processes (short-cut methods, homogenized, pore network, and continuous thermo-mechanical approaches) are treated, along with computational fluid dynamics, population balances, and process systems simulation tools. Emphasis is put on scale transitions.


Other Volumes and Sets:


Volume 2 - Modern Drying Technology: Experimental Techniques

Volume 2: Comprises experimental methods used in various industries and in research in order to design and control drying processes, measure moisture and moisture distributions, characterize particulate material and the internal micro-structure of dried products, and investigate the behavior of particle systems in drying equipment. Key topics include acoustic levitation, near-infrared spectral imaging, magnetic resonance imaging, X-ray tomography, and positron emission tracking.


Volume 3 - Modern Drying Technology: Product Quality and Formulation

Volume 3: Discusses how desired properties of foods, biomaterials, active pharmaceutical ingredients, and fragile aerogels can be preserved during drying, and how spray drying and spray fluidized bed processes can be used for particle formation and formulation. Methods for monitoring product quality, such as process analytical technology, and modeling tools, such as Monte Carlo simulations, discrete particle modeling and neural networks, are presented with real examples from industry and academia.


Volume 4 - Modern Drying Technology: Energy Savings

Volume 4: Deals with the reduction of energy demand in various drying processes and areas, highlighting the following topics: Energy analysis of dryers, efficient solid-liquid separation techniques, osmotic dehydration, heat pump assisted drying, zeolite usage, solar drying, drying and heat treatment for solid wood and other biomass sources, and sludge thermal processing.

Volume 5 - Process Intensification

Volume 5: Dedicated to process intensification by more efficient distribution and flow of the drying medium, foaming, controlled freezing, and the application of superheated steam, infrared radiation, microwaves, power ultrasound and pulsed electric fields. Process efficiency is treated in conjunction with the quality of sensitive products, such as foods, for a variety of hybrid and combined drying processes.


Available in print as 5 Volume Set or as individual volumes. Buy the Set and SAVE 30%!

Also available in electronic formats.

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Table of Contents

Series Preface.

Preface of Volume 1.

List of Contributors.

Recommended Notation.

EFCE Working Party on Drying: Address List.

1 Comprehensive Drying Models based on Volume Averaging: Background, Application and Perspective (P. Perre, R. Remond, I.W. Turner).

1.1 Microscopic Foundations of the Macroscopic Formulation.

1.2 The Macroscopic Set of Equations.

1.3 Physical Phenomena Embedded in the Equations.

1.4 Computational Strategy to Solve the Comprehensive Set of Macroscopic Equations.

1.5 Possibilities Offered by this Modeling Approach: Convective Drying.

1.6 Possibilities Offered by this Modeling Approach: Less-common Drying Configurations.

1.7 Homogenization as a Way to Supply the Code with Physical Parameters.

1.8 The Multiscale Approach.

2 Pore-network Models: A Powerful Tool to Study Drying at the Pore Level and Understand the Influence of Structure on Drying Kinetics (T. Metzger, E. Tsotsas, M. Prat).

2.1 Introduction.

2.2 Isothermal Drying Model.

2.3 Model Extensions.

2.4 Influence of Pore Structure.

2.5 Towards an Assessment of Continuous Models.

3 Continuous Thermomechanical Models using Volume-averaging Theory (F. Couture, P. Bernada, M. A. Roques).

3.1 Introduction.

3.2 Modeling.

3.3 Simulation.

3.4 Liquid Pressure as Driving Force.

3.5 Conclusions.

4 Continuous Thermohydromechanical Model using the Theory of Mixtures (S. J. Kowalski).

4.1 Preliminaries.

4.2 Global Balance Equations.

4.3 Constitutive Equations in the Skeletal Frame of Reference.

4.4 Rate Equations for Heat and Mass Transfer.

4.5 Differential Equations for Heat and Mass Transfer.

4.6 Thermomechanical Equations for a Drying Body.

4.7 Drying of a Cylindrical Sample made of Kaolin.

4.8 Final Remarks.

5 CFD in Drying Technology – Spray-Dryer Simulation (S. Blei, M. Sommerfeld).

5.1 Introduction.

5.2 The Euler–Lagrange Approach: an Extended Model for Spray-dryer Calculations.

5.3 Droplet-drying Models.

5.4 Collisions of Particles.

5.5 Example of a Spray-dryer Calculation.

5.6 Prediction of Product Properties.

5.7 Summary.

6 Numerical Methods on Population Balances (J. Kumar, M. Peglow, G. Warnecke, S. Heinrich, E. Tsotsas, L. Morl, M. Hounslow, G. Reynolds).

6.1 Introduction.

6.2 Pure Breakage.

6.3 Pure Aggregation.

6.4 Pure Growth.

6.5 Combined Aggregation and Breakage.

6.6 Combined Aggregation and Nucleation.

6.7 Combined Growth and Aggregation.

6.8 Combined Growth and Nucleation.

6.9 Multidimensional Population Balances.

7 Process-systems Simulation Tools (I. C. Kemp).

7.1 Introduction.

7.2 Numerical Calculation Procedures.

7.3 Heat and Mass Balances.

7.4 Scoping Design Methods.

7.5 Scaling Methods.

7.6 Detailed Design Models.

7.7 Ancillary Calculations.

7.8 Process Simulators.

7.9 Expert Systems and Decision-making Tools.

7.10 Knowledge Bases and Qualitative Information.

7.11 Commercialization of Drying Software.

7.12 Conclusions.


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Author Information

Professor Dr. Ing. Evangelos Tsotsas born 1959, Thessaloniki/Greece; PhD: 1985, Karlsruhe/Germany; Habilitation: 1990, Karlsruhe; till 1994: The Dow Chemical Company; since 1994: Professor of Thermal Process Engineering at Otto-von-Guericke-University Magdeburg; 1998-2002: Dean of the Faculty of Process and Systems Engineering; elected German Research Council (DFG) reviewer, member of the selection committee of the Alexander von Humboldt Foundation, the European Multiphase Systems Institute, and the International Center of Heat and Mass Transfer; Chairman of Working Parties on Drying of the EFCE and GVC; 2002: Award for innovation in drying research.

Professor Arun S. Mujumdar; PhD McGill University, Montreal; Professor of Chemical Engineering, McGill University, until July 2000; Visiting Professor at numerous universities; Honorary Professor of five universities in China; President and Principal Consultant, Exergex Corp., Canada 1989-2000; consultant for over 60 companies; authored 2 books and over 60 book chapters, edited or co-edited over 50 books and journals; published more than 300 research papers, presented over 200 conference papers; external reviewer for various research councils; founder, chair or member of organizing panels for numerous major international conferences; elected Fellow of American Society of Mechanical Engineers, Chemical Institute of Canada and Inst. Chem. Eng. (India); member of AIChE, CPPA, Sigma Xi; awarded Senior Fellowship by Japan Society for Promotion of Science (1988 and 1996), Innovation in Drying Award, IDS '86, MIT, The Procter & Gamble Award for Excellence in Drying Research (1998); named Distinguished Scientists of the 20th Century, International Man of the Year by International Biographical Institute, Cambridge (1999); listed in 1000 World Leaders of Influence by the American Biographical Institute, Raleigh, USA (2000).
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