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Etude Numerique Et Experimentale De La Valorisation Energetique Du Bois Par Gazeification
Download Etude Numerique Et Experimentale De La Valorisation Energetique Du Bois Par Gazeification full books in PDF, epub, and Kindle. Read online Etude Numerique Et Experimentale De La Valorisation Energetique Du Bois Par Gazeification ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis La Valorisation énergétique du bois et de la biomasse by : Roger Dumon
Download or read book La Valorisation énergétique du bois et de la biomasse written by Roger Dumon and published by FeniXX. This book was released on 1982-01-01T00:00:00+01:00 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage est une réédition numérique d’un livre paru au XXe siècle, désormais indisponible dans son format d’origine.
Book Synopsis Étude expérimentale de la gazéification électrothermique de bois à l'oxygène sous pression by :
Download or read book Étude expérimentale de la gazéification électrothermique de bois à l'oxygène sous pression written by and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Etude expérimentale de la gazéification électrothermique du bois à l'oxygène sous pression by : P. Dubois
Download or read book Etude expérimentale de la gazéification électrothermique du bois à l'oxygène sous pression written by P. Dubois and published by . This book was released on 1985 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Étude de la rhéologie de poudres de bois en vue de leur valorisation énergétique by : Florent Thevenon
Download or read book Étude de la rhéologie de poudres de bois en vue de leur valorisation énergétique written by Florent Thevenon and published by . This book was released on 2021 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: La biomasse peut être valorisée en énergie via de nombreux procédés. En particulier, la gazéification est un procédé de conversion thermochimique de la biomasse en un gaz de synthèse qui peut être ensuite transformé en biocarburants. La gazéification en réacteur à flux entraîné impose de broyer finement la ressource (quelques centaines de microns) afin d'assurer sa conversion totale dans le réacteur. Cependant, les poudres de biomasse sont composées de particules fines et allongées, ce qui induit une cohésion importante. Il en résulte des problèmes récurrents lors des opérations de stockage, de convoyage et d'injection de la matière. Dans ce contexte, ce travail de thèse vise à étudier la rhéologie des poudres de bois. L'approche expérimentale suivie est menée de l'échelle de la particule à l'échelle pilote. La première partie de la thèse présente l'étude de plusieurs chaines de préparation de poudres de bois à l'échelle pilote. Elles incluent soit une étape de torréfaction à 250 °C, soit un broyage additionnel à l'aide d'un broyeur vibrant. Le coût énergétique de production des poudres et leur coulabilité, mesurée à l'échelle laboratoire, sont comparés. Bien que la torréfaction réduise l'énergie nécessaire au broyage, le coût énergétique total de la chaîne incluant la torréfaction est très élevé par rapport à celui de la chaîne employant le broyeur vibrant. Cela est principalement dû au traitement des gaz de torréfaction dans la postcombustion. La valorisation de l'énergie des gaz de postcombustion dans les étapes de séchage et de torréfaction diminue de moitié les besoins en énergie et d'un quart les besoins en matière première. La torréfaction douce diminue d'un facteur deux le diamètre médian des particules mais ne modifie par leur forme. Le broyage dans le broyeur vibrant améliore la circularité des particules. Enfin, ces deux traitements améliorent significativement la coulabilité de la poudre dans des proportions similaires. Dans une deuxième partie de la thèse, la relaxation sous contrainte des poudres de bois est étudiée à l'échelle laboratoire avec une grande et une petite cellule de cisaillement. La lente relaxation de l'échantillon est interrompue par des variations soudaines et conséquentes, expliquées par un réarrangement collectif de grains. Ce phénomène est observé uniquement dans la plus grande cellule. Les réarrangements importants du milieu sont relativement indépendants de la contrainte normale appliquée et apparaissent à déformation constante du lit. L'amplitude de ces réarrangements ainsi que la déformation du lit entre deux réarrangements augmentent avec la taille des grosses particules. La présence des réarrangements est plus importante lorsque la porosité initiale du lit est élevée. La dernière partie de la thèse étudie l'injection de poudres de bois avec une vis sans fin à échelle pilote. Les essais sont réalisés en grande partie à pression atmosphérique. L'influence de la morphologie des particules sur l'énergie requise par la vis d'injection et sur le débit massique de poudre est mise en évidence. L'injection de particules grossières et allongées nécessite plus d'énergie que celle de particules fines et sphériques. Le remplissage de la vis est d'autant plus important que la distribution granulométrique est étendue. La longueur de cohésion est le rapport des forces de cohésion sur la force de pesanteur. Cet indicateur prédit correctement la capacité des poudres étudiées à s'écouler sans former de voûte. Enfin, une poudre de bois torréfiée est gazéifiée avec succès dans un réacteur à flux entraîné pilote sous une pression de 7 bars, à un débit d'entrée de 15 kg/h.
Book Synopsis Granular Dynamics, Contact Mechanics and Particle System Simulations by : Colin Thornton
Download or read book Granular Dynamics, Contact Mechanics and Particle System Simulations written by Colin Thornton and published by Springer. This book was released on 2015-09-03 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the Discrete Element Method (DEM) technique, a discontinuum modelling approach that takes into account the fact that granular materials are composed of discrete particles which interact with each other at the microscale level. This numerical simulation technique can be used both for dispersed systems in which the particle-particle interactions are collisional and compact systems of particles with multiple enduring contacts. The book provides an extensive and detailed explanation of the theoretical background of DEM. Contact mechanics theories for elastic, elastic-plastic, adhesive elastic and adhesive elastic-plastic particle-particle interactions are presented. Other contact force models are also discussed, including corrections to some of these models as described in the literature, and important areas of further research are identified. A key issue in DEM simulations is whether or not a code can reliably simulate the simplest of systems, namely the single particle oblique impact with a wall. This is discussed using the output obtained from the contact force models described earlier, which are compared for elastic and inelastic collisions. In addition, further insight is provided for the impact of adhesive particles. The author then moves on to provide the results of selected DEM applications to agglomerate impacts, fluidised beds and quasi-static deformation, demonstrating that the DEM technique can be used (i) to mimic experiments, (ii) explore parameter sweeps, including limiting values, or (iii) identify new, previously unknown, phenomena at the microscale. In the DEM applications the emphasis is on discovering new information that enhances our rational understanding of particle systems, which may be more significant than developing a new continuum model that encompasses all microstructural aspects, which would most likely prove too complicated for practical implementation. The book will be of interest to academic and industrial researchers working in particle technology/process engineering and geomechanics, both experimentalists and theoreticians.
Book Synopsis Frontline and Factory by : Roy MacLeod
Download or read book Frontline and Factory written by Roy MacLeod and published by Springer Science & Business Media. This book was released on 2007-05-06 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents a first considered attempt to study the factors that conditioned industrial chemistry for war in 1914-18. Taking a comparative perspective, it reflects on the experience of France, Germany, Austria, Russia, Britain, Italy and Russia, and points to significant similarities and differences. It looks at changing patterns in the organisation of industry, and at the emerging symbiosis between science, industry and the military.
Download or read book Powder Flow written by Ali Hassanpour and published by Royal Society of Chemistry. This book was released on 2019-07-12 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Powder flow has attracted increased attention in recent years as novel formulated and functional products are being developed in powder forms, particularly in pharmaceutical and high value additive manufacturing industries. This book meets a need for a truly integrated modern treatment of dry powder flow, covering theory, robust characterisation techniques, modelling tools and applications. Written by leaders in the field, the book opens by introducing the wide range of powder processing problems faced by industry, the complexities of powders and the myriad of ways their flow behaviour can be characterised. The authors then move on, with contributions from experts, to describe fundamental properties that can be measured, defining the states of stress and shear rate and the considerations that need to be taken account. By providing a comprehensive treatment of all available characterisation techniques, as well as various modelling tools, the reader obtains a clear, practical overview. Case studies and applications connect theory to practical examples across a broad range of industries. This book stands out by not only providing the reader with guidance on what to measure but also how to interpret results, ensuring this is an invaluable text for anyone working on powder flow in the chemical, pharmaceutical and manufacturing industries, as well as students and researchers across chemical and process engineering disciplines.
Book Synopsis Experiments with Tomatoes by : William H. Bishop
Download or read book Experiments with Tomatoes written by William H. Bishop and published by . This book was released on 1890 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Clean Energy and Resources Recovery by : Vinay Kumar Tyagi
Download or read book Clean Energy and Resources Recovery written by Vinay Kumar Tyagi and published by Elsevier. This book was released on 2021-07-15 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clean Energy and Resource Recovery from Biomass Wastes, Volume 1 presents the technological options, both conventional and advanced, for energy and resources recovery from all types of organic wastes. The book addresses municipal and industrial sludges, municipal solid waste, agro-residue, animal wastes, industrial waste, forestry residue, and algal biomass, and provides a global overview of biomass waste production, waste handling issues and related GHG emissions and climate change, legislative waste management guidelines, biomass composition, and conventional methods for biomass waste treatment. For each biomass waste the chapters will cover energy and bio-based products recovery, pre-treatment methods, process microbiology, community dynamics, co-digestion, reactor design and configuration, and techno-economic evaluation. Case studies on upscaling technology and pilot and industry scale implementation are included, alongside step-by-step calculations that integrate practical field data and regulatory requirements into the environmental design process. Finally, future trends and developments in advanced biotechnological concepts for biomass waste processing and management are discussed. Clean Energy and Resource Recovery from Biomass Wastes, Volume 1 provides an ideal reference for graduate students and researchers interested in bioenergy and renewable energy, and environmental engineers and industry practitioners involved in waste management and resource recovery. Comprehensive coverage of all treatment technologies from waste biomass for bioenergy and related bio-products Provides innovative strategies to increase the efficiency of anaerobic digestion, including during pre- and post-treatment Includes industry case studies showing successful implementation processes and strategies
Book Synopsis Regression Modeling by : Michael Panik
Download or read book Regression Modeling written by Michael Panik and published by CRC Press. This book was released on 2009-04-30 with total page 832 pages. Available in PDF, EPUB and Kindle. Book excerpt: Regression Modeling: Methods, Theory, and Computation with SAS provides an introduction to a diverse assortment of regression techniques using SAS to solve a wide variety of regression problems. The author fully documents the SAS programs and thoroughly explains the output produced by the programs.The text presents the popular ordinary least square
Book Synopsis Design of Experiments for Engineers and Scientists by : Jiju Antony
Download or read book Design of Experiments for Engineers and Scientists written by Jiju Antony and published by Elsevier. This book was released on 2023-06-02 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition of Design of Experiments for Engineers and Scientists adds to the tried and trusted tools that were successful in so many engineering organizations with new coverage of design of experiments (DoE) in the service sector. Case studies are updated throughout, and new ones are added on dentistry, higher education, and utilities. Although many books have been written on DoE for statisticians, this book overcomes the challenges a wider audience faces in using statistics by using easy-to-read graphical tools. Readers will find the concepts in this book both familiar and easy to understand, and users will soon be able to apply them in their work or research. This classic book is essential reading for engineers and scientists from all disciplines tackling all kinds of product and process quality problems and will be an ideal resource for students of this topic. Written in nonstatistical language, the book is an essential and accessible text for scientists and engineers who want to learn how to use DoE Explains why teaching DoE techniques in the improvement phase of Six Sigma is an important part of problem-solving methodology New edition includes two new chapters on DoE for services as well as case studies illustrating its wider application in the service industry
Book Synopsis Marketing in Zambia by : Reginald Biddle
Download or read book Marketing in Zambia written by Reginald Biddle and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Particle Breakage by : Agba D. Salman
Download or read book Particle Breakage written by Agba D. Salman and published by Elsevier Science Limited. This book was released on 2007 with total page 1227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gives an understanding of the state-of-the-art, and access to a wide range of principles. An academic outlook, blended with an industrial perspective!
Book Synopsis SAS for Data Analysis by : Mervyn G. Marasinghe
Download or read book SAS for Data Analysis written by Mervyn G. Marasinghe and published by Springer Science & Business Media. This book was released on 2008-12-10 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is intended for use as the textbook in a second course in applied statistics that covers topics in multiple regression and analysis of variance at an intermediate level. Generally, students enrolled in such courses are p- marily graduate majors or advanced undergraduate students from a variety of disciplines. These students typically have taken an introductory-level s- tistical methods course that requires the use a software system such as SAS for performing statistical analysis. Thus students are expected to have an - derstanding of basic concepts of statistical inference such as estimation and hypothesis testing. Understandably, adequate time is not available in a ?rst course in stat- tical methods to cover the use of a software system adequately in the amount of time available for instruction. The aim of this book is to teach how to use the SAS system for data analysis. The SAS language is introduced at a level of sophistication not found in most introductory SAS books. Important features such as SAS data step programming, pointers, and line-hold spe- ?ers are described in detail. The powerful graphics support available in SAS is emphasized throughout, and many worked SAS program examples contain graphic components.
Book Synopsis Particle and Particle Systems Characterization by : Wilfried Gille
Download or read book Particle and Particle Systems Characterization written by Wilfried Gille and published by CRC Press. This book was released on 2016-04-19 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Small-angle scattering (SAS) is the premier technique for the characterization of disordered nanoscale particle ensembles. SAS is produced by the particle as a whole and does not depend in any way on the internal crystal structure of the particle. Since the first applications of X-ray scattering in the 1930s, SAS has developed into a standard metho
Book Synopsis Characterisation of Bulk Solids by : Don McGlinchey
Download or read book Characterisation of Bulk Solids written by Don McGlinchey and published by John Wiley & Sons. This book was released on 2009-02-12 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handling of powders and bulk solids is a critical industrial technology across a broad spectrum of industries, from minerals processing to bulk and fine chemicals, and the food and pharmaceutical industries, yet is rarely found in the curricula of engineering or chemistry departments. With contributions from leading authors in their respective fields, Characterisation of Bulk Solids provides the reader with a sound understanding of the techniques, importance and application of particulate materials characterisation. It covers the fundamental characteristics of individual particles and bulk particulate materials, and includes discussion of a wide range of measurement techniques, and the use of material characteristics in design and industrial practice. The reader will then be in a better position to diagnose solids handling and processing problems in industry, and to deal with experts and equipment suppliers from an informed standpoint. Written for post-graduate engineers, chemical scientists and technologists at all stages of their industrial career, the book will also serve as an ideal primer in any of the specialist areas to inform further study.
Book Synopsis Behaviour of Granular Materials by : Bernard Cambou
Download or read book Behaviour of Granular Materials written by Bernard Cambou and published by Springer. This book was released on 2014-05-04 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a complete and comprehensive analysis of the behaviour of granular materials including the description of experimental results, the different ways to define the global behaviour from local phenomena at the particle scale, the various modellings which can be used for a D.E.M. analysis to solve practical problems and finally the analysis of strain localisation. The concepts developed in this book are applicable to many kinds of granular materials considered in civil, mechanical or chemical engineering.
