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Developpement Et Utilisation De Techniques Lasers Pour La Mesure Despeces Reactives Formees Dans Les Flammes
Download Developpement Et Utilisation De Techniques Lasers Pour La Mesure Despeces Reactives Formees Dans Les Flammes full books in PDF, epub, and Kindle. Read online Developpement Et Utilisation De Techniques Lasers Pour La Mesure Despeces Reactives Formees Dans Les Flammes ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Développement et utilisation de techniques lasers pour la mesure d'espèces réactives formées dans les flammes by : Xavier Mercier
Download or read book Développement et utilisation de techniques lasers pour la mesure d'espèces réactives formées dans les flammes written by Xavier Mercier and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ce mémoire d'HDR relate les principaux travaux de recherche auxquels j'ai participé depuis ma thèse en lien avec le développement et la mise en œuvre d'outils spectroscopiques de haute sensibilité pour la mesure d'espèces gazeuses et particulaires formées dans les processus de combustion. J'y aborde notamment l'utilisation de la technique Cavity Ring-Down Spectroscopy (CRDS) pulsée pour les études de flammes. Cette technique, de par son excellente sensibilité, a permis la mesure quantitative d'espèces radicalaires inaccessibles par d'autres méthodes et ainsi apporté des informations précieuses pour la compréhension des mécanismes chimiques de flamme. La fluorescence induite par laser (LIF) occupe également une place de choix au sein des méthodes optiques utilisées pour les études de flamme. L'utilisation de cette technique, très complémentaire du CRDS pour les études de flammes, est également présentée dans ce mémoire à travers quelques résultats significatifs obtenus au moyen de ces deux méthodes. Par ailleurs, je relate l'utilisation de cette méthode dans sa version imagerie (PLIF - Planar laser induced fluorescence) dans le cadre d'études liées à des problématiques de combustion diphasique (inflammation de gouttelettes). Depuis plusieurs années maintenant, l'équipe au sein de laquelle je travaille a développé une activité de recherche fortement tournée vers l'étude de flammes génératrices de particules de suies. Une partie des ces travaux de recherche sont présentés dans la dernière partie de ce mémoire. J'y relate notamment la technique JCLIF (Jet cooled Laser Induced Fluorescence) que nous avons spécifiquement développée pour la mesure des HAPs (hydrocarbures aromatiques polycycliques) formés dans les flammes et la méthode LII (Incandescence induite par laser) qui permet la détection des particules de suies. L'objet principal de ces travaux est de fournir des données quantitatives pour permettre le développement de mécanismes chimiques visant à améliorer la connaissance sur les processus mis en œuvre dans la formation des particules de suie dans les flammes.
Book Synopsis Développement de la méthode Fluorescence Induite par Laser en jet froid pour la quantification d'espèces aromatiques impliquées dans la formation des particules de suie dans les flammes by : Maxime Wartel
Download or read book Développement de la méthode Fluorescence Induite par Laser en jet froid pour la quantification d'espèces aromatiques impliquées dans la formation des particules de suie dans les flammes written by Maxime Wartel and published by . This book was released on 2011 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: L’émission de HAPs (Hydrocarbures Aromatiques Polycycliques) et de particules carbonées produis lors de la combustion d’hydrocarbures ont un impact important à la fois sur l’environnement et sur la santé. En effet, les particules de suie, étant des particules ultra-fines sont facilement assimilées par le système respiratoire et provoquent des troubles de l’organisme. De plus, les HAPs que ce soit en phase gazeuse ou adsorbés à la surface des suies sont reconnus comme étant des composés mutagènes et cancérigènes. La limitation des émissions de ces espèces polluantes passe par une compréhension des mécanismes à l’origine de leur formation et nécessite donc la mise en place de techniques de plus en plus sensibles pour permettre leur détection dans des flammes où évoluent de nombreuses espèces chimiques en interaction les unes avec les autres. Ce travail de thèse a donc pour objectif de développer une nouvelle méthode de détection de HAPs sélective, sensible et quantitative reposant sur l’extraction des espèces de la flamme et à leur analyse par Fluorescence Induite par laser (LIF) après refroidissement au sein d’un jet supersonique. Cette stratégie conduit à l’obtention de spectres caractéristiques de HAPs spécifiques permettant ainsi leur mesure quantitative et sélective. Grâce au développement de cette méthode, la mesure de profils de fraction molaire de trois espèces clefs dans les mécanismes de formation des HAPs (benzène, naphtalène et pyrène) a pu être réalisée dans une flamme de prémélange CH4/O2/N2 stabilisée à basse pression pour différentes conditions de pression et de richesse. En parallèle, les profils de fraction volumique de suie ont été obtenus in situ par la technique d’Incandescence Induite par Laser (LII), ce qui a permis de dégager des corrélations entre concentrations de HAPs et de particules de suie. La base de données obtenue permettra d’affiner les modèles cinétiques de formation de HAPs et de suies dans les flammes.
Download or read book Genmix written by D Brian Spalding and published by Elsevier. This book was released on 2014-05-18 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genmix: A General Computer Program for Two-dimensional Parabolic Phenomena explains a computer program called GENMIX. The main intention of the program is to be used as a tool of instructions. The name of the program is a mixture of two considerations: its generality and its concern for mixing processes. The book aims to help the potential user to understand the physical and mathematical basis of the topic computer program. It is also the aim of the book to make the program applicable to practical problems. The book is arranged in such a way as to parallel a course of lectures and associated computer-workshop sessions wherein the student is allowed to do some elementary computations as soon as he has gained some knowledge of the method. The book contains the mathematical, physical, and computer-coding aspects of the program. Concepts such as the boundary layer, two-dimensional, and steady- flow are defined and discussed in depth. The text will be a useful tool for computer instructors and students.
Book Synopsis Photoacoustic and Photothermal Phenomena by : Peter Hess
Download or read book Photoacoustic and Photothermal Phenomena written by Peter Hess and published by Springer. This book was released on 2014-03-12 with total page 575 pages. Available in PDF, EPUB and Kindle. Book excerpt: photoacoustic and Photothermal Phenomena contains reviews and a large numberof selected contributed papers reporting progress in the application of new photoacoustic and photo- thermal techniques in physics, chemistry, biology, medicine and materials science. Theoretical and experimental work is presented on spectroscopy, kinetics and relaxation, trace analysis, mass and heat transport, surfaces and thin films, nondestructive evaluation,ultrasonics and semiconductors.
Author :International Atomic Energy Agency Publisher :International Atomic Energy Agency ISBN 13 :9789201063205 Total Pages :72 pages Book Rating :4.0/5 (632 download)
Book Synopsis In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 by : International Atomic Energy Agency
Download or read book In-Vessel Melt Retention and Ex-Vessel Corium Cooling: IAEA Tecdoc No. 1906 written by International Atomic Energy Agency and published by International Atomic Energy Agency. This book was released on 2020-08-06 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: This publication results from a technical meeting on phenomenology and technologies relevant to in-vessel melt retention (IVMR) and ex-vessel corium cooling (EVCC). The purpose of the publication is to capture the state of knowledge, at the time of that meeting, related to phenomenology and technologies as well as the challenges and pending issues relevant to IVMR and EVCC for water cooled reactors by summarizing the information provided by the meeting participants in a form useful to practitioners in Member States.
Book Synopsis Heat and Mass Transfer in Boundary Layers by : Suhas V. Patankar
Download or read book Heat and Mass Transfer in Boundary Layers written by Suhas V. Patankar and published by . This book was released on 1970 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atoms written by Jean Perrin and published by Franklin Classics. This book was released on 1916 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Convective Mass Transfer by : Dudley Brian Spalding
Download or read book Convective Mass Transfer written by Dudley Brian Spalding and published by . This book was released on 1963 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Emerging Micro-pollutants in the Environment by : Sudarshan Kurwadkar
Download or read book Emerging Micro-pollutants in the Environment written by Sudarshan Kurwadkar and published by ACS Symposium. This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Distributed in print by Oxford University Press."
Book Synopsis Heat and Mass Transfer in Recirculating Flows by : A. D. Gosman
Download or read book Heat and Mass Transfer in Recirculating Flows written by A. D. Gosman and published by . This book was released on 1969 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Applied Mineralogy in the Mining Industry by : W. Petruk
Download or read book Applied Mineralogy in the Mining Industry written by W. Petruk and published by Elsevier. This book was released on 2000-11-29 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques of performing applied mineralogy investigations, and applications and capabilities of recently developed instruments for measuring mineral properties are explored in this book intended for practicing applied mineralogists, students in mineralogy and metallurgy, and mineral processing engineers. The benefits of applied mineralogy are presented by using in-depth applied mineralogy studies on base metal ores, gold ores, porphyry copper ores, iron ores and industrial minerals as examples. The chapter on base metal ores includes a discussion on the effects of liberation, particle sizes and surfaces coatings of Pb, Cu, Fe, Ca and So4- on the recoveries of sphalerite, galena and chalcopyrite. The chapter on gold discusses various methods of determining the quantities of gold in different minerals, including 'invisible' gold in pyrite and arsenopyrite, so that a balance of the distribution of gold among the minerals can be calculated. This book also discusses the roles of pyrite, oxygen, moisture and bacterial (thiobacillus ferrooxidans) on reactions that produce acidic drainage from tailings piles, and summarizes currently used and proposed methods of remediation of acidic drainage.
Book Synopsis A Parallel Finite Volume Algorithm for Large-eddy Simulation of Turbulent Flows by : Trong T. Bui
Download or read book A Parallel Finite Volume Algorithm for Large-eddy Simulation of Turbulent Flows written by Trong T. Bui and published by . This book was released on 1998 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Creating Futures written by Michel Godet and published by . This book was released on 2006 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Calculations in Furnace Technology by : Clive Davies
Download or read book Calculations in Furnace Technology written by Clive Davies and published by Elsevier. This book was released on 2016-05-13 with total page 287 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculations in Furnace Technology presents the theoretical and practical aspects of furnace technology. This book provides information pertinent to the development, application, and efficiency of furnace technology. Organized into eight chapters, this book begins with an overview of the exothermic reactions that occur when carbon, hydrogen, and sulfur are burned to release the energy available in the fuel. This text then evaluates the efficiencies to measure the quantity of fuel used, of flue gases leaving the plant, of air entering, and the heat lost to the surroundings. Other chapters consider that it is important to determine the amount of carbon discharged with the ashes, the quantity and composition of any tar produced, so that a carbon balance can be applied. The final chapter describes the various reactions within the furnace atmosphere and between charges and atmosphere. This book is a valuable resource for fuel technologists, heating and ventilating engineers, and plant operators.
Download or read book Metamorphoses written by Emanuele Coccia and published by John Wiley & Sons. This book was released on 2021-06-09 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are all fascinated by the mystery of metamorphosis – of the caterpillar that transforms itself into a butterfly. Their bodies have almost nothing in common. They don’t share the same world: one crawls on the ground and the other flutters its wings in the air. And yet they are one and the same life. Emanuele Coccia argues that metamorphosis – the phenomenon that allows the same life to subsist in disparate bodies – is the relationship that binds all species together and unites the living with the non-living. Bacteria, viruses, fungi, plants, animals: they are all one and the same life. Each species, including the human species, is the metamorphosis of all those that preceded it – the same life, cobbling together a new body and a new form in order to exist differently. And there is no opposition between the living and the non-living: life is always the reincarnation of the non-living, a carnival of the telluric substance of a planet – the Earth – that continually draws new faces and new ways of being out of even the smallest particle of its disparate body. By highlighting what joins humans together with other forms of life, Coccia’s brilliant reflection on metamorphosis encourages us to abandon our view of the human species as static and independent and to recognize instead that we are part of a much larger and interconnected form of life.
Book Synopsis The Plant Cell Wall Methods and Protocols by : Zoë A. Popper
Download or read book The Plant Cell Wall Methods and Protocols written by Zoë A. Popper and published by Lulu.com. This book was released on with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluated Kinetic Data for High Temperature Reactions by :
Download or read book Evaluated Kinetic Data for High Temperature Reactions written by and published by . This book was released on 1972 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
