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Thermochemical Processes

Author: C. B. Alcock
Publisher: Elsevier
ISBN: 0080519172
Size: 68.86 MB
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Today the study of materials is concerned with the underlying thermodynamic and chemical processes involved in the manufacture and processing of a wide range of materials - metals, ceramics, semi-conductors, plastics and composites. For the first time, this book provides a quantitative description and examples of the application of physical chemical concepts to the processing and degradation of metallic and other inorganic materials, from the atomic scale to the analysis of industrial processes. Thermochemical Processes: Principles and Models deals with processes dominated in turn by the gas phase (such as chemical vapour deposition), the solid phase (such as powder metallurgy electroceramics and high-temperature corrosion) and the liquid phase (such as extraction metallurgy and glass-making). C. B. Alcock provides information which will prove invaluable to academics and workers involved in high temperature industries and in particular to those with an interest in the scientific analysis of processes - which will be most useful to those working in the field of modelling. First ever quantitative approach to the subject of Thermochemical processing Companion volume to Kubachewski et al

Thermochemical Process Engineering

Author:
Publisher: Academic Press
ISBN: 0128099046
Size: 12.11 MB
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Thermochemical Process Engineering, the latest edition in the Advances in Chemical Engineering, provides up-to-date information, comprehensively presenting updates in a systematic fashion that has made the series of great importance to organic chemists, polymer chemists, and many biological scientists since its inception in 1960. The series includes contributions from established authorities in the field who combine descriptive chemistry and mechanistic insight to create an understanding on how the chemistry drives the properties. Contains reviews by leading authorities in their respective areas Presents up-to-date reviews of the latest techniques in the modeling of catalytic processes Includes a broad mix of US and European authors, as well as academic, industrial, and research institute perspectives Provides discussions on the connections between computation and experimental methods

Thermochemical Processing Of Biomass

Author: Robert C. Brown
Publisher: John Wiley & Sons
ISBN: 9781119990994
Size: 67.84 MB
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Thermochemical pathways for biomass conversion offer opportunities for rapid and efficient processing of diverse feedstocks into fuels, chemicals and power. Thermochemical processing has several advantages relative to biochemical processing, including greater feedstock flexibility, conversion of both carbohydrate and lignin into products, faster reaction rates, and the ability to produce a diverse selection of fuels. Thermochemical Processing of Biomass examines the large number of possible pathways for converting biomass into fuels, chemicals and power through the use of heat and catalysts. The book presents a practical overview of the latest research in this rapidly developing field, highlighting the fundamental chemistry, technical applications and operating costs associated with thermochemical conversion strategies. Bridging the gap between research and practical application, this book is written for engineering professionals in the biofuels industry, as well as academic researchers working in bioenergy, bioprocessing technology and chemical engineering. Topics covered include: Combustion Gasification Fast Pyrolysis Hydrothermal Processing Upgrading Syngas and Bio-oil Catalytic Conversion of Sugars to Fuels Hybrid Thermochemical/Biochemical Processing Economics of Thermochemical Conversion For more information on the Wiley Series in Renewable Resources, visit www.wiley.com/go/rrs

Developments In Thermochemical Biomass Conversion

Author: A.V. Bridgwater
Publisher: Springer Science & Business Media
ISBN: 9400915594
Size: 49.16 MB
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There have been many developments in the science and technology of thermo chemical biomass conversion since the previous conference on Advances in Thermochemical Biomass Conversion in Interlaken, Switzerland, in 1992. This fourth conference again covers all aspects of thermal biomass conversion systems from fundamental research through applied research and development to demon stration and commercial applications to reflect the progress made in the last four years. All aspects of bioenergy systems are covered from pretreatment through to end-user applications with increased consideration paid to the environmental benefits and problems of implementing bio-energy systems. There was an excellent response with over 200 papers offered and over 180 delegates from 29 countries attending the conference. The programme was divided into five main areas covering pyrolysis, pretreatment, gasification, combustion and system studies and this division is reflected in the structure of these conference proceedings. Each main section was preceded by a state-of-the-art review to provide a focus for the ensuing presentations and an authoritative reference. All the papers included have been subject to a full peer review process. As with any international conference, an important aim was to exchange ideas and discuss problems with fellow researchers, as well as to hear about the latest research and development and applications. A workshop programme was included to encourage this interaction in areas of interest selected by participants. The resul tant workshop reports provide a summary of topical problems and opportunities.

Database Needs For Modeling And Simulation Of Plasma Processing

Author: Panel on Database Needs in Plasma Processing
Publisher: National Academies Press
ISBN: 030957353X
Size: 66.77 MB
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In spite of its high cost and technical importance, plasma equipment is still largely designed empirically, with little help from computer simulation. Plasma process control is rudimentary. Optimization of plasma reactor operation, including adjustments to deal with increasingly stringent controls on plant emissions, is performed predominantly by trial and error. There is now a strong and growing economic incentive to improve on the traditional methods of plasma reactor and process design, optimization, and control. An obvious strategy for both chip manufacturers and plasma equipment suppliers is to employ large-scale modeling and simulation. The major roadblock to further development of this promising strategy is the lack of a database for the many physical and chemical processes that occur in the plasma. The data that are currently available are often scattered throughout the scientific literature, and assessments of their reliability are usually unavailable. Database Needs for Modeling and Simulation of Plasma Processing identifies strategies to add data to the existing database, to improve access to the database, and to assess the reliability of the available data. In addition to identifying the most important needs, this report assesses the experimental and theoretical/computational techniques that can be used, or must be developed, in order to begin to satisfy these needs.

Pultrusion

Author: Ismet Baran
Publisher: Smithers Rapra
ISBN: 1910242438
Size: 16.85 MB
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Pultrusion is in principle a simple process to manufacture constant cross sectional fiber reinforced polymer composites. The process has a low labour content and a high raw material conversion efficiency since it is a continuous processing technique. Even if the pultrusion is conceptually quite simple, the analysis of its physics, dynamics and definition of optimal processing parameters, are complex tasks. Keeping the multi-physics and large amount of variables involved in the pultrusion process in mind, a satisfactory experimental analysis for the production requires considerable time which is obviously not a cost-efficient approach. In order to avoid the expensive trial-and-error approaches for designing new products and optimum process conditions, the development of computational process models is needed.This book focuses on the numerical modelling of the pultrusion process. State-of-the-art process models are reviewed and the governing principles are explained in a systematic way. The main challenges in pultrusion such as the process induced residual stresses, shape distortions, thermal history, species conversion, phase changes, impregnation of the reinforcements and pulling force are described and related examples are provided. Moreover, the strategies for having a reliable and optimised process using probabilistic approaches and optimisation algorithms are summarised.Another focus of this book is on the thermo-chemical and mechanical analyses of the pultrusion process for industrial profiles such as rectangular box section, L-shaped profile, I-beam, flat and round profiles in which the process induced stresses and dimensional variations together with the thermal and cure developments are highlighted.