“Sixty years ago I knew everything; now I know nothing; education is a progressive discovery of our own ignorance. Will Durant”



quinta-feira, 20 de dezembro de 2012

A New View of AC Power Distribution Systems

A New View of AC Power Distribution Systems: Peering at power flow and stability with micro-synchrophasors Speakers/Performers: Alex McEachern, President, Power Standard Lab; Alexandra von Meier, Co-Director of Electric Grid Research, CIEE Sponsors: CITRIS (Ctr for Info Technology Research in the Interest of Society), i4Energy Center

domingo, 16 de dezembro de 2012

3 phase sinewave inverter

457 - ELETRICIDADE - Características de funcionamento do contator

ELETRICIDADE - Dispositivo DR. Considerações e teste de funcionamento.avi

Home made PCB by the method of screen printing

Construcción de un transformador eléctrico - Build a electric transformer

New Perspectives of Energy Storage Materials

Dra. Shirley Meng received her Ph.D. in Advance Materials for Micro & Nano Systems from the Singapore-MIT Alliance in 2005, after which she worked as a postdoc research fellow and became a research scientist in Massachusetts Institute of Technology before joining University of Florida, Department of Materials Science & Engineering as a junior faculty member. She is currently a faculty member in the Department of NanoEngineering, University of California San Diego (UCSD). Meng’s research focuses on the direct integration of experimental techniques with first principles computation modeling for developing new materials for electrochemical energy storage and conversion. She won the Materials Research Society Graduate Student Award in 2003 for her pioneering work on designing new high energy electrode materials for lithium ion batteries from first principles. She recently received the National Science Foundation (NSF) CAREER award and her research group - Laboratory for Energy Storage and Conversion (LESC) focuses on functional nano-structured materials for energy storage and conversion. Recent programs include the design, synthesis, processing, and in situ characterization of mixed transition metal oxides as high energy density electrode materials in advanced lithium ion batteries; new intercalation materials for sodium ion batteries and advanced soluble lead flow batteries for grids large scale storage.

Photo-Physics and Renewable Energy Applications of Single-Walled Carbon Nanotubes

Progress towards Third Generation Solar Energy Conversion: Can Quantum Dot Solar Cells exceed the Shockley-Queisser Limit?

Matthew C. Beard is a physical chemist (PhD - Yale University) whose interest spans a large range of important physical chemistry problems relating to photoconversion. This includes charge transport in nanoparticle arrays and organic semiconductors, charge and energy transfer, and size-dependent phenomena in quantum sized-materials. He is currently investigating carrier generation and charge transport in assemblies of semiconductor nanocrystals. Dr. Beard received his Ph.D from Yale University in 2002 where he pioneered time-resolved THz spectroscopy for studying charge carrier generation in a variety of nanoscale systems. He joined NREL in 2004 in the chemical and materials science center working with Arthur J. Nozik. The Center for Advanced Solar Photophysics (CASP) is an energy research frontier center funded by the Basic Energy Sciences division of the Department of Energy and is jointly led by NREL and LANL. CASP’s mission is to explore and exploit the unique advantages of nanostructured materials and solution-based fabrication methods to enable the low-cost, high-efficiency solar cells of tomorrow.

quarta-feira, 12 de dezembro de 2012

How to Succeed in Bringing New Green Energy Technologies to Market

Investigating Structure Variation of Electrode Materials for Lithium Ion Batteries

Hong Li is a Professor of Key Laboratory for Renewable Energy, Institute of Physics (IOP), Chinese Academy of Sciences (CAS), and a deputy director of Beijing National Laboratory for Condensed Matter Physics. He obtained his BS degree in physical chemistry from Lanzhou University in 1992, Master-degree in Electrochemistry in Changchun Institute of Applied Chemistry, CAS in 1995 and the PhD degree in condensed matter physics from IOP, CAS in 1999. He was a post-doctor in Max-Planck-Institute for Solid state Research from 2001 to 2003 and a visiting scholar in Brookhaven National Laboratory in 2007 and 2011. He has studied advanced materials and energy storage/conversion mechanisms in batteries and other solid state ionic devices. He has published over 140 papers in peer-reviewed SCI journals with over 4000 times citation and the H-index is 34. He has given invited 30 talks in international academic conferences. He has filed over 60 patents and over 20 have been granted. Authors: Hong Li

The Changing Energy Mix, Implications of the Shale Gas Boom for the Electric Power Sector

Description: Summary: Transitioning to a sustainable low-carbon energy system poses one of the great challenges of the 21st century. The Energy Innovation Series brings leaders from government, law, finance, industry, and academia to discuss key aspects of this challenge and some of the innovative approaches and solutions being fashioned across a range of sectors. During academic year 2012-13, the series will focus on the changing energy mix in the United States and abroad, the implications of shale gas on the electric power sector, financing for energy innovation, the changing utility business model, and pathways to scale for renewable energy. This half-day conference will explore some of the dramatic changes taking place in the energy sector, with particular attentions to the U.S. electric power sector. « Hide Authors: Lance Astrella, William Boyd, Jeff Logan, John Mork

Energy Efficiency In Buildings And Heat Supply Solutions: A German Perspective For The Nuclear Shutdown

Description: Beginning with some background information on the unique German position regarding the energy supply eliminating any nuclear power by 2022 but enforcing the use of renewable energy sources, the challenges for both the building and the power generation sector will be highlighted. The talk will introduce opportunities to improve energy performance of buildings by new and innovative HVAC concepts as well as for increasing the penetration of renewable and environmental energy sources for heat and power supply in cities. That is also why a particular focus will be on other relevant aspects as multi-level district heating, combined heat and power generation and the proper balance between large-scale energy generation in heat and power plants and distributed small-scale heat and power generation in buildings in terms of a global optimum in energy use and emissions. Currently ongoing research projects at the Technical University of Dresden will be presented. « Hide Authors: Clemens Felsmann

Modeling, Monitoring and Control of Wind Turbine Drive-trains

Summary: The wind turbine drive‐train is an integral part of the turbine that converts rotational kinetic energy from the wind to electrical energy. Ensuring reliable and robust operation of the drive‐train necessitates developing an accurate dynamic response model that includes its aero‐dynamic interaction with the wind, torsional and translational responses of its mechanical components, as well as electro‐mechanical interaction at the generator. This presentation will describe a high‐fidelity lumped mass model of the wind turbine drive‐train, which is integrated with FAST, an openly available aero‐elastic code developed by the National Renewable Energy Laboratory (NREL). Jaspreet Singh Dhupia is an Assistant Professor at Nanyang Technological University, Singapore since July 2008. Prior to that, Prof. Dhupia graduated with a PhD and MS in Mechanical Engineering from the University of Michigan, Ann Arbor, and a B.Tech. from Indian Institute of Technology, Delhi. His doctoral research was carried out at the Center for Reconfigurable Manufacturing Systems funded by National Science Foundation. Currently, his research activities are funded by several government and industrial organizations in Singapore, which include the Ministry of Education, Maritime Port Authority, Rolls-Royce Singapore Pte. Ltd., and ABB Singapore Pte. Ltd. His research focuses on drive-train controls, monitoring, and modeling for different applications, such as ships, aircraft, and wind turbines.

High-altitude Wind Energy Generation

Sustainable energy generation is one of the most urgent challenges that mankind is facing nowadays. Many countries have set ambitious objectives to increase the share of energy produced from clean and renewable sources. Unfortunately, the actual renewables are still not competitive with respect to fossil fuels, due to the high costs of the related technologies, their variable and non-uniform availability and their low power density per unit area. Lorenzo Fagiano, Ph.D. Lorenzo Fagiano received the Master's degree in Automotive Engineering in 2004 and the Ph.D. degree in Information and System Engineering in 2009 from Politecnico di Torino, Italy. In 2005 he worked for Fiat Research Centre, Italy, in the field of active vehicle systems. In 2007 he spent a three-months visiting period in the Optimization for Engineering Center (OPTEC) of the Katholieke Universiteit Leuven. Lorenzo Fagiano is currently a Marie Curie fellow at Politecnico di Torino and a visiting researcher at the University of California, Santa Barbara. His main research interests include high-altitude wind energy generation using controlled tethered wings, constrained robust and nonlinear control, set membership theory for control purposes and automotive control systems. Lorenzo Fagiano is co-author of about 50 papers published in international journals, conference proceedings and book chapters. He is recipient of the ENI award "Debut in Research" prize 2010, of the Maffezzoni prize 2009 and of a Marie Curie International Outgoing Fellowship.

Control of Power Inverters in Renewable Energy and Smart Grid Integration

Dr. Qing-Chang Zhong Qing-Chang Zhong received the Ph.D. degree in control theory and engineering from Shanghai Jiao Tong University, Shanghai, China, in 1999, and the Ph.D. degree in control and power engineering (awarded the Best Doctoral Thesis Prize) from Imperial College London, London, U.K., in 2004. He holds the Chair Professor in Control and Systems Engineering at the Dept of Automatic Control and Systems Engineering, the University of Sheffield. He is a Fellow of IET (2010) and a Senior Member of IEEE (2004). He is an Associate Editor of IEEE Transactions on Power Electronics and of the Conference Editorial Board of IEEE Control Systems Society. He is a Vice Chair of IFAC TC 6.3 (Power and Energy Systems) and IFAC TC 2.2 (Linear Control Systems), and has been on the Program Committees of many international conferences. He was awarded one of the seven Leverhulme Trust Senior Research Fellowships in 2009 by the Royal Academy of Engineering, UK. He has attracted over £2M research funding from EPSRC, RAEng, TSB, and industrial companies etc during the last five years. His current research focuses on advanced control theory, power electronics, renewable energy, smart grid integration, electrical vehicles and control applications in other industrial sectors. The details of some of his projects can be found from http://zhongqc.staff.shef.ac.uk.

domingo, 9 de dezembro de 2012

FORUM Energy Future Keio University and the Embassy of Canada

Collaboration between Keio University and the Embassy of Canada concerning a Forum on Energy Future Canada-Japan collaboration for Leading Research on Hydrates. Energy Future(Sept.21.2011)1/11 Professor, Faculty of Science and Technology, Keio Univ. Director, Keio Leading-edge Laboratory of Science and Technology  UEDA, Toshihisa Minister(Commercial), Embassy of Canada Paul J. Thoppil, C.A. Professor and Vice-President, Keio University MAKABE, Toshiaki http://www.kll.keio.ac.jp/seminar/hydrate.html


Introductory Lectures on Solid State Physics #9 KEIO UNIVERSITY JAPAN PROF. KOHEI M. ITOH

KEIO UNIVERSITY JAPAN 慶應大学 講義 物理情報数学A 第一回 高校数学からの復習 2010