Packed Bed Columns

Packed Bed Columns
Author: Nikolai Kolev
Publisher: Elsevier
Total Pages: 709
Release: 2006-08-08
Genre: Technology & Engineering
ISBN: 0080463924

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Packed bed columns are largely employed for absorption, desorption, rectification and direct heat transfer processes in chemical and food industry, environmental protection and also processes in thermal power stations like water purification, flue gas heat utilization and SO2 removal. These Separation processes, are estimated to account for 40%-70% of capital and operating costs in process industry. Packed bed columns are widely employed in this area. Their usage also for direct heat transfer between gas and liquid, enlarge their importance. They are the best apparatuses, from thermodynamical point of view, for mass and heat transfer processes between gas and liquid phase. Their wide spreading is due to low capital investments and operating costs. Since 1995 there has not been published a specialised book in this area, and this is a period of quick development of packed columns. Packed Bed Columns reflects the state of this field including the author's experience on creating and investigating of new packings, column internals and industrial columns. Considers the theories of mass transfer processes and shows how they help the construction of highly effective packings Complete information about the performance characteristics of different modern types of highly effective packings Considers the models for calculation and areas of their application

Least Squares Support Vector Machines

Least Squares Support Vector Machines
Author: Johan A. K. Suykens
Publisher: World Scientific
Total Pages: 318
Release: 2002
Genre: Mathematics
ISBN: 9789812381514

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This book focuses on Least Squares Support Vector Machines (LS-SVMs) which are reformulations to standard SVMs. LS-SVMs are closely related to regularization networks and Gaussian processes but additionally emphasize and exploit primal-dual interpretations from optimization theory. The authors explain the natural links between LS-SVM classifiers and kernel Fisher discriminant analysis. Bayesian inference of LS-SVM models is discussed, together with methods for imposing spareness and employing robust statistics. The framework is further extended towards unsupervised learning by considering PCA analysis and its kernel version as a one-class modelling problem. This leads to new primal-dual support vector machine formulations for kernel PCA and kernel CCA analysis. Furthermore, LS-SVM formulations are given for recurrent networks and control. In general, support vector machines may pose heavy computational challenges for large data sets. For this purpose, a method of fixed size LS-SVM is proposed where the estimation is done in the primal space in relation to a Nystrom sampling with active selection of support vectors. The methods are illustrated with several examples.

VDI Heat Atlas

VDI Heat Atlas
Author: VDI Gesellschaft
Publisher: Springer Science & Business Media
Total Pages: 1608
Release: 2010-07-21
Genre: Science
ISBN: 3540778764

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For more than 50 years, the Springer VDI Heat Atlas has been an indispensable working means for engineers dealing with questions of heat transfer. Featuring 50% more content, this new edition covers most fields of heat transfer in industrial and engineering applications. It presents the interrelationships between basic scientific methods, experimental techniques, model-based analysis and their transfer to technical applications.

Mathematical and Physical Modeling of Materials Processing Operations

Mathematical and Physical Modeling of Materials Processing Operations
Author: Olusegun Johnso Ilegbusi
Publisher: CRC Press
Total Pages: 512
Release: 1999-07-29
Genre: Technology & Engineering
ISBN: 9781584880172

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The past few decades have brought significant advances in the computational methods and in the experimental techniques used to study transport phenomena in materials processing operations. However, the advances have been made independently and with competition between the two approaches. Mathematical models are easier and less costly to implement, but experiments are essential for verifying theoretical models. In Mathematical and Physical Modeling of Materials Processing Operations, the authors bridge the gap between mathematical modelers and experimentalists. They combine mathematical and physical modeling principles for materials processing operations simulation and use numerous examples to compare theoretical and experimental results. The modeling of transport processes is multi-disciplinary, involving concepts and principles not all of which can be associated with just one field of study. Therefore, the authors have taken care to ensure that the text is self-sustaining through the variety and breadth of topics covered. Beyond the usual topics associated with transport phenomena, the authors also include detailed discussion of numerical methods and implementation of process models, software and hardware selection and application, and representation of auxiliary relationships, including turbulence modeling, chemical kinetics, magnetohydrodynamics, and multi-phase flow. They also provide several correlations for representing the boundary conditions of fluid flow, heat transfer, and mass transfer phenomena. Mathematical and Physical Modeling of Materials Processing Operations is ideal for introducing these tools to materials engineers and researchers. Although the book emphasizes materials, some of the topics will prove interesting and useful to researchers in other fields of chemical and mechanical engineering.

Packed Towers

Packed Towers
Author: Reinhard Billet
Publisher: Wiley-VCH
Total Pages: 408
Release: 1995-02-22
Genre: Science
ISBN:

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Discusses important theoretical and practical aspects for the calculation, design and operation of packed towers. This text also outlines the advantages of packed towers, as opposed to plate towers, for saving energy and protecting the environment.

Mass Transfer

Mass Transfer
Author: Koichi Asano
Publisher: John Wiley & Sons
Total Pages: 290
Release: 2007-09-24
Genre: Technology & Engineering
ISBN: 3527609083

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This didactic approach to the principles and modeling of mass transfer as it is needed in modern industrial processes is unique in combining a step-by-step introduction to all important fundamentals with the most recent applications. Based upon the renowned author's successful new modeling method as used for the O-18 process, the exemplary exercises included in the text are fact-proven, taken directly from existing chemical plants. Fascinating reading for chemists, graduate students, chemical and process engineers, as well as thermodynamics physicists.

Heat and Mass Transfer in Packed Beds

Heat and Mass Transfer in Packed Beds
Author: Noriaki Wakao
Publisher: Taylor & Francis
Total Pages: 396
Release: 1982
Genre: Nature
ISBN: 9780677058603

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First published in 1982. Routledge is an imprint of Taylor & Francis, an informa company.

Modeling in Transport Phenomena

Modeling in Transport Phenomena
Author: Ismail Tosun
Publisher: Elsevier
Total Pages: 629
Release: 2007-07-17
Genre: Science
ISBN: 0080549500

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Modeling in Transport Phenomena, Second Edition presents and clearly explains with example problems the basic concepts and their applications to fluid flow, heat transfer, mass transfer, chemical reaction engineering and thermodynamics. A balanced approach is presented between analysis and synthesis, students will understand how to use the solution in engineering analysis. Systematic derivations of the equations and the physical significance of each term are given in detail, for students to easily understand and follow up the material.There is a strong incentive in science and engineering to understand why a phenomenon behaves the way it does. For this purpose, a complicated real-life problem is transformed into a mathematically tractable problem while preserving the essential features of it. Such a process, known as mathematical modeling, requires understanding of the basic concepts. This book teaches students these basic concepts and shows the similarities between them. Answers to all problems are provided allowing students to check their solutions. Emphasis is on how to get the model equation representing a physical phenomenon and not on exploiting various numerical techniques to solve mathematical equations. A balanced approach is presented between analysis and synthesis, students will understand how to use the solution in engineering analysis. Systematic derivations of the equations as well as the physical significance of each term are given in detail Many more problems and examples are given than in the first edition - answers provided

Mass Transfer

Mass Transfer
Author: Anthony L. Hines
Publisher: Prentice Hall
Total Pages: 570
Release: 1985
Genre: Science
ISBN:

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A thorough introduction to the fundamentals and applications of microscopic and macroscopic mass transfer.