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Author: Cédric Rouaud
Publisher:
ISBN:
Category :
Languages : fr
Pages : 365
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Book Description
La diminution de la consommation et des émissions polluantes des moteurs thermiques justifie le développement des chaînes de traction hybride comportant un moteur électrique et des composants électroniques engendrant de nouvelles contraintes thermiques au sein du compartiment moteur. C'est pourquoi dans la première partie du mémoire, nous présentons les résultats d'essais d'un nouveau circuit de refroidissement commun à l'ensemble des organes de la chaîne de traction. Afin de développer de nouvelles lois de gestion énergétique entre les organes, la méthode nodale a été retenue pour tenir compte du comportement thermique des moteurs thermique et électrique, de l'électronique et du circuit de refroidissement. La deuxième partie présente une étude des performances thermohydrauliques de différentes méthodes de refroidissement de l'électronique ayant conduit au choix du refroidissement par jets multiples. Des essais ont permis une caractérisation fine de cette technique et une configuration optimale a été déterminée. La dernière partie synthétise les résultats de la modélisation thermique du véhicule en faisant appel à une nouvelle méthodologie de réduction de modèle appliquée au cas de l'électronique. Cette technique permet de diminuer le temps de calcul de la simulation thermique mais pourra, à terme, permettre un contrôle en temps réel des composants intégrés sur le véhicule hybride.
Author: Cédric Rouaud
Publisher:
ISBN:
Category :
Languages : fr
Pages : 365
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Book Description
La diminution de la consommation et des émissions polluantes des moteurs thermiques justifie le développement des chaînes de traction hybride comportant un moteur électrique et des composants électroniques engendrant de nouvelles contraintes thermiques au sein du compartiment moteur. C'est pourquoi dans la première partie du mémoire, nous présentons les résultats d'essais d'un nouveau circuit de refroidissement commun à l'ensemble des organes de la chaîne de traction. Afin de développer de nouvelles lois de gestion énergétique entre les organes, la méthode nodale a été retenue pour tenir compte du comportement thermique des moteurs thermique et électrique, de l'électronique et du circuit de refroidissement. La deuxième partie présente une étude des performances thermohydrauliques de différentes méthodes de refroidissement de l'électronique ayant conduit au choix du refroidissement par jets multiples. Des essais ont permis une caractérisation fine de cette technique et une configuration optimale a été déterminée. La dernière partie synthétise les résultats de la modélisation thermique du véhicule en faisant appel à une nouvelle méthodologie de réduction de modèle appliquée au cas de l'électronique. Cette technique permet de diminuer le temps de calcul de la simulation thermique mais pourra, à terme, permettre un contrôle en temps réel des composants intégrés sur le véhicule hybride.
Author: Mansour Tawk
Publisher:
ISBN:
Category :
Languages : fr
Pages : 0
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Book Description
Les travaux de cette thèse portent sur le refroidissement descomposants électroniques de puissance par métal liquide. Les efforts se sontconcentrés plus particulièrement autour de deux fonctions : la pompeélectromagnétique servant à mettre le fluide en mouvement et le refroidisseur àminicanaux situé sous la source de dissipation.Le mémoire de thèse se structure en quatre chapitres équivalents. Dans lepremier, l'apport des métaux liquides pour le refroidissement des composantsactifs de puissance est démontré. Dans un deuxième temps, l'étude théorique etexpérimentale d'une pompe électromagnétique à conduction est effectuée. Lesystème de refroidissement est plus particulièrement abordé dans le troisièmechapitre. Enfin, des réflexions sur la mise en oeuvre des refroidisseurs à métauxliquides en électronique de puissance sont discutées dans la dernière partie.Grâce à elles, nous voyons que le champ d'application de ces travaux favorisel'émergence de solutions innovantes pour la gestion thermique des composantsélectronique de puissance.
Author: Ahmed Belasri
Publisher: Springer Nature
ISBN: 9811554447
Category : Technology & Engineering
Languages : en
Pages : 659
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Book Description
This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Author: International Energy Agency
Publisher: Organization for Economic Co-Operation & Development
ISBN:
Category : Business & Economics
Languages : en
Pages : 720
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Book Description
This 2010 edition of Energy Technology Perspectives examines the extent to which an energy technology revolution is taking place, the key technologies that are emerging, the costs and benefits of these technologies, and policies needed to foster their use. ETP 2010 presents updated scenarios from the present to 2050 that show which new technologies will be most important in key sectors and in different regions of the world. It highlights the importance of finance to achieve change, examines the implications of the scenarios for energy security and looks at how to accelerate the deployment of low-carbon technologies in major developing countries. It presents roadmaps and transition pathways for spurring deployment of the most important clean technologies and for overcoming existing barriers. With extensive data, projections and analysis, Energy Technology Perspectives 2010 provides decision makers with the detailed information and insights needed to accelerate the switch to a more secure, low-carbon energy future.
Author: International Energy Agency
Publisher: Simon and Schuster
ISBN: 9264108831
Category : Electronic books
Languages : en
Pages : 208
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Book Description
Hydrogen and fuel cells are vital technologies to ensure a secure and CO2-free energy future. Their development will take decades of extensive public and private effort to achieve technology breakthroughs and commercial maturity. Government research programs are indispensable for catalyzing the development process. This report maps the IEA countries' current efforts to research, develop and deploy the interlocking elements that constitute a "hydrogen economy", including CO2 capture and storage when hydrogen is produced out of fossil fuels. It provides an overview of what is being done, and by whom, covering an extensive complexity of national government R & D programs. The survey highlights the potential for exploiting the benefits of the international cooperation. This book draws primarily upon information contributed by IEA governments. In virtually all the IEA countries, important R & D and policy efforts on hydrogen and fuel cells are in place and expanding. Some are fully-integrated, government-funded programs, some are a key element in an overall strategy spread among multiple public and private efforts. The large amount of information provided in this publication reflects the vast array of technologies and logistics required to build the "hydrogen economy."--Publisher description.
Author: Norbert Streitz
Publisher: Springer
ISBN: 3540727272
Category : Computers
Languages : en
Pages : 314
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Book Description
This book examines how the computer, as we currently know it, will be replaced by a new generation of technologies, moving computing off the desktop and ultimately integrating it with real world objects and everyday environments. It provides a unique combination of concepts, methods and prototypes of ubiquitous and pervasive computing reflecting the current interest in smart environments and ambient intelligence.
Author: Jinyue Yan
Publisher: John Wiley & Sons
ISBN: 1118388585
Category : Science
Languages : en
Pages : 4038
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Book Description
The Handbook of Clean Energy Systems brings together an international team of experts to present a comprehensive overview of the latest research, developments and practical applications throughout all areas of clean energy systems. Consolidating information which is currently scattered across a wide variety of literature sources, the handbook covers a broad range of topics in this interdisciplinary research field including both fossil and renewable energy systems. The development of intelligent energy systems for efficient energy processes and mitigation technologies for the reduction of environmental pollutants is explored in depth, and environmental, social and economic impacts are also addressed. Topics covered include: Volume 1 - Renewable Energy: Biomass resources and biofuel production; Bioenergy Utilization; Solar Energy; Wind Energy; Geothermal Energy; Tidal Energy. Volume 2 - Clean Energy Conversion Technologies: Steam/Vapor Power Generation; Gas Turbines Power Generation; Reciprocating Engines; Fuel Cells; Cogeneration and Polygeneration. Volume 3 - Mitigation Technologies: Carbon Capture; Negative Emissions System; Carbon Transportation; Carbon Storage; Emission Mitigation Technologies; Efficiency Improvements and Waste Management; Waste to Energy. Volume 4 - Intelligent Energy Systems: Future Electricity Markets; Diagnostic and Control of Energy Systems; New Electric Transmission Systems; Smart Grid and Modern Electrical Systems; Energy Efficiency of Municipal Energy Systems; Energy Efficiency of Industrial Energy Systems; Consumer Behaviors; Load Control and Management; Electric Car and Hybrid Car; Energy Efficiency Improvement. Volume 5 - Energy Storage: Thermal Energy Storage; Chemical Storage; Mechanical Storage; Electrochemical Storage; Integrated Storage Systems. Volume 6 - Sustainability of Energy Systems: Sustainability Indicators, Evaluation Criteria, and Reporting; Regulation and Policy; Finance and Investment; Emission Trading; Modeling and Analysis of Energy Systems; Energy vs. Development; Low Carbon Economy; Energy Efficiencies and Emission Reduction. Key features: Comprising over 3,500 pages in 6 volumes, HCES presents a comprehensive overview of the latest research, developments and practical applications throughout all areas of clean energy systems, consolidating a wealth of information which is currently scattered across a wide variety of literature sources. In addition to renewable energy systems, HCES also covers processes for the efficient and clean conversion of traditional fuels such as coal, oil and gas, energy storage systems, mitigation technologies for the reduction of environmental pollutants, and the development of intelligent energy systems. Environmental, social and economic impacts of energy systems are also addressed in depth. Published in full colour throughout. Fully indexed with cross referencing within and between all six volumes. Edited by leading researchers from academia and industry who are internationally renowned and active in their respective fields. Published in print and online. The online version is a single publication (i.e. no updates), available for one-time purchase or through annual subscription.
Author: Janine M. Benyus
Publisher: Harper Collins
ISBN: 0061958921
Category : Science
Languages : en
Pages : 324
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Book Description
Repackaged with a new afterword, this "valuable and entertaining" (New York Times Book Review) book explores how scientists are adapting nature's best ideas to solve tough 21st century problems. Biomimicry is rapidly transforming life on earth. Biomimics study nature's most successful ideas over the past 3.5 million years, and adapt them for human use. The results are revolutionizing how materials are invented and how we compute, heal ourselves, repair the environment, and feed the world. Janine Benyus takes readers into the lab and in the field with maverick thinkers as they: discover miracle drugs by watching what chimps eat when they're sick; learn how to create by watching spiders weave fibers; harness energy by examining how a leaf converts sunlight into fuel in trillionths of a second; and many more examples. Composed of stories of vision and invention, personalities and pipe dreams, Biomimicry is must reading for anyone interested in the shape of our future.
Author: Aditya Johri
Publisher: Cambridge University Press
ISBN: 1107785855
Category : Technology & Engineering
Languages : en
Pages : 1124
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Book Description
The Cambridge Handbook of Engineering Education Research is the critical reference source for the growing field of engineering education research, featuring the work of world luminaries writing to define and inform this emerging field. The Handbook draws extensively on contemporary research in the learning sciences, examining how technology affects learners and learning environments, and the role of social context in learning. Since a landmark issue of the Journal of Engineering Education (2005), in which senior scholars argued for a stronger theoretical and empirically driven agenda, engineering education has quickly emerged as a research-driven field increasing in both theoretical and empirical work drawing on many social science disciplines, disciplinary engineering knowledge, and computing. The Handbook is based on the research agenda from a series of interdisciplinary colloquia funded by the US National Science Foundation and published in the Journal of Engineering Education in October 2006.
Author: Unesco
Publisher: UNESCO
ISBN: 9231041568
Category : Technology & Engineering
Languages : en
Pages : 392
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Book Description
This report reviews engineering's importance to human, economic, social and cultural development and in addressing the UN Millennium Development Goals. Engineering tends to be viewed as a national issue, but engineering knowledge, companies, conferences and journals, all demonstrate that it is as international as science. The report reviews the role of engineering in development, and covers issues including poverty reduction, sustainable development, climate change mitigation and adaptation. It presents the various fields of engineering around the world and is intended to identify issues and challenges facing engineering, promote better understanding of engineering and its role, and highlight ways of making engineering more attractive to young people, especially women.--Publisher's description.
