Physical Model for Mass Transfer in a Packed Bed

Physical Model for Mass Transfer in a Packed Bed PDF Author: Raymond Leon Porter
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 320

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Book Description


Packed Bed Columns

Packed Bed Columns PDF Author: Nikolai Kolev
Publisher: Elsevier
ISBN: 0080463924
Category : Technology & Engineering
Languages : en
Pages : 709

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Book Description
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 PDF Author: Johan A. K. Suykens
Publisher: World Scientific
ISBN: 9789812381514
Category : Mathematics
Languages : en
Pages : 318

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Book Description
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 PDF Author: VDI Gesellschaft
Publisher: Springer Science & Business Media
ISBN: 3540778764
Category : Science
Languages : en
Pages : 1608

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Book Description
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.

Mass Transfer

Mass Transfer PDF Author: Koichi Asano
Publisher: John Wiley & Sons
ISBN: 3527609083
Category : Technology & Engineering
Languages : en
Pages : 290

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Book Description
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.

Mathematical and Physical Modeling of Materials Processing Operations

Mathematical and Physical Modeling of Materials Processing Operations PDF Author: Olusegun Johnso Ilegbusi
Publisher: CRC Press
ISBN: 9781584880172
Category : Technology & Engineering
Languages : en
Pages : 512

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Book Description
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.

Heat and Mass Transfer in Packed Beds

Heat and Mass Transfer in Packed Beds PDF Author: Noriaki Wakao
Publisher: Taylor & Francis
ISBN: 9780677058603
Category : Nature
Languages : en
Pages : 396

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

Solid-State Fermentation Bioreactors

Solid-State Fermentation Bioreactors PDF Author: David A. Mitchell
Publisher: Springer Science & Business Media
ISBN: 3540312862
Category : Technology & Engineering
Languages : en
Pages : 481

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Book Description
This concise professional reference provides a fundamental framework for the design and operation of solid-state fermentation bioreactors, enabling researchers currently working at laboratory scale to scale up their processes. The authors survey bioreactor types in common use, and describe in depth how to plan a project, and model heat transfer phenomena. The book includes case studies, and a review of practical issues involved in bioreactor performance.

Modelling in Transport Phenomena

Modelling in Transport Phenomena PDF Author: Ismail Tosun
Publisher: Elsevier
ISBN: 0080511856
Category : Science
Languages : en
Pages : 607

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Book Description
Modelling in Transport Phenomena: A Conceptual Approach aims to show students how to translate the inventory rate equation into mathematical terms at both the macroscopic and microscopic levels. The emphasis is on obtaining the equation representing a physical phenomenon and its interpretation. The book begins with a discussion of basic concepts and their characteristics. It then explains the terms appearing in the inventory rate equation, including ""rate of input"" and ""rate of output."" The rate of generation in transport of mass, momentum, and energy is also described. Subsequent chapters detail the application of inventory rate equations at the macroscopic and microscopic levels. This book is intended as an undergraduate textbook for an introductory Transport Phenomena course in the junior year. It can also be used in unit operations courses in conjunction with standard textbooks. Although it is written for students majoring in chemical engineering, it can also serve as a reference or supplementary text in environmental, mechanical, petroleum, and civil engineering courses.

Mass Transfer

Mass Transfer PDF Author: Anthony L. Hines
Publisher: Prentice Hall
ISBN:
Category : Science
Languages : en
Pages : 570

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