Universidade Federal Do Rio De Janeiro 2017

Total Page:16

File Type:pdf, Size:1020Kb

Universidade Federal Do Rio De Janeiro 2017 Universidade Federal do Rio de Janeiro RETROSPECTIVA DOS MÉTODOS DE LEVITAÇÃO E O ESTADO DA ARTE DA TECNOLOGIA DE LEVITAÇÃO MAGNÉTICA Hugo Pelle Ferreira 2017 RETROSPECTIVA DOS MÉTODOS DE LEVITAÇÃO E O ESTADO DA ARTE DA TECNOLOGIA DE LEVITAÇÃO MAGNÉTICA Hugo Pelle Ferreira Projeto de Graduação apresentado ao Curso de Engenharia Elétrica da Escola Politécnica, Universidade Federal do Rio de Janeiro, como parte dos requisitos necessários à obtenção do título de Engenheiro. Orientador: Richard Magdalena Stephan Rio de Janeiro Abril de 2017 RETROSPECTIVA DOS MÉTODOS DE LEVITAÇÃO E O ESTADO DA ARTE DA TECNOLOGIA DE LEVITAÇÃO MAGNÉTICA Hugo Pelle Ferreira PROJETO DE GRADUAÇÃO SUBMETIDO AO CORPO DOCENTE DO CURSO DE ENGENHARIA ELÉTRICA DA ESCOLA POLITÉCNICA DA UNIVERSIDADE FEDERAL DO RIO DE JANEIRO COMO PARTE DOS REQUISITOS NECESSÁRIOS PARA A OBTENÇÃO DO GRAU DE ENGENHEIRO ELETRICISTA. Examinada por: ________________________________________ Prof. Richard Magdalena Stephan, Dr.-Ing. (Orientador) ________________________________________ Prof. Antonio Carlos Ferreira, Ph.D. ________________________________________ Prof. Rubens de Andrade Jr., D.Sc. RIO DE JANEIRO, RJ – BRASIL ABRIL de 2017 RETROSPECTIVA DOS MÉTODOS DE LEVITAÇÃO E O ESTADO DA ARTE DA TECNOLOGIA DE LEVITAÇÃO MAGNÉTICA Ferreira, Hugo Pelle Retrospectiva dos Métodos de Levitação e o Estado da Arte da Tecnologia de Levitação Magnética/ Hugo Pelle Ferreira. – Rio de Janeiro: UFRJ/ Escola Politécnica, 2017. XVIII, 165 p.: il.; 29,7 cm. Orientador: Richard Magdalena Stephan Projeto de Graduação – UFRJ/ Escola Politécnica/ Curso de Engenharia Elétrica, 2017. Referências Bibliográficas: p. 108 – 165. 1. Introdução. 2. Princípios de Levitação e Aplicações. 3. Levitação Magnética e Aplicações. 4. Conclusões. I. Stephan, Richard Magdalena. II. Universidade Federal do Rio de Janeiro, Escola Politécnica, Curso de Engenharia Elétrica. III. Retrospectiva dos Métodos de Levitação e o Estado da Arte da Tecnologia de Levitação Magnética. iv AGRADECIMENTOS Agradeço primeiramente a Deus, por sua infinita misericórdia e força que me ajudaram a chegar até aqui e enfrentar todos os desafios. Agradeço ao Professor Richard Magdalena Stephan por ter me selecionado como aluno de inciação científica do Laboratório de Aplicações de Supercondutores (LASUP) e do Laboratório de Máquinas (LabMaq), o que me permitiu ter a primeira oportunidade de colocar em prática os conhecimentos vistos ao longo do curso, ampliar os horizontes e ter acesso ao estado da arte da tecnologia de levitação magnética, com os mancais magnéticos e o projeto MagLev-Cobra, além de participar de duas conferências internacionais sobre o tema. Agradeço também por sua paciência, confiança e didática para a orientação deste trabalho e ao longo do curso, que contribuíram muito para minha formação como engeheiro. Agradeço ao Professor Antonio Carlos Ferreira e ao Professor Rubens de Andrade Jr. por aceitarem o convite para participar da banca de avaliação deste trabalho. Agradeço ao CNPq pelo apoio financeiro como aluno bolsista de iniciação científica. Agradeço à minha mãe, Lenita, pelo imenso apoio, amor, carinho e incentivo para alcançar meus objetivos e cumprir mais uma etapa de minha vida. Agradeço ao meu pai, José Manuel, por me ensinar a importância da matemática e estímulo para as ciências exatas. Agradeço à minha irmã, Carolina, por sua ajuda nesta caminhada. Agradeço aos demais familiares que sempre torceram por mim. Agradeço a todos os amigos que tive a oportunidade de encontrar ao longo dos anos e compartilhar vários momentos que tornaram esta caminhada mais leve, em especial Andrei, Bruno, Carlos Augusto, Carolina, Fábio, Leonardo, Marcello, Paola, Rafaela, Rodrigo, Samuel e Yuri. Agradeço também aos engenheiros Alan Endalécio, Marcelo Lopes e Vinícius Rodrigues, que além de serem grandes amigos, muito me auxiliaram nas atividades do laboratório. Agradeço à toda a equipe do LASUP e do LabMaq por me darem todas as condições e suporte para a realização deste trabalho em um excelente ambiente, em especial ao Professor Elkin Rodríguez, Sérgio Ferreira, Vina Guedes e aos engenheiros Felipe Costa, Felipe Sass e Marcos Dantas. Agradeço aos Professores que me motivaram e demonstraram a importância do conhecimento e do estudo, ao longo de toda minha vida, e cujos esforços se traduzem neste trabalho, em especial, Adriana Benazzi, Antonio Ribeiro, Almir Nogueira, Djalma Falcão, Glauco Taranto, Leila Schiesari, Miguel Bastos, Paulo Mendes, Rafael Pinheiro, Rosa Maria, Valmar Carneiro e Walter Suemitsu. v Agradeço ao pesquisador da USP, Marcos Andrade, e as empresas, por ordem alfabética, Bytronic Educational Technology, crazybaby, Inc., Crealev B. V., Elivatix, INTECO, IQDEMY, Levitronix, LG Electronics, Inc., LTI Motion, Mecos AG, Thoratec Corporation, e Waukesha Bearings, pela permissão para utilizar a imagem de suas pesquisas e seus produtos neste trabalho e, assim, enriquecer o seu conteúdo. vi Resumo do Projeto de Graduação apresentado ao Departamento de Engenharia Elétrica da Escola Politécnica/ UFRJ como parte dos requisitos necessários para a obtenção do grau de Engenheiro Eletricista. RETROSPECTIVA DOS MÉTODOS DE LEVITAÇÃO E O ESTADO DA ARTE DA TECNOLOGIA DE LEVITAÇÃO MAGNÉTICA Hugo Pelle Ferreira Abril/2017 Orientador: Richard Magdalena Stephan Curso: Engenharia Elétrica Ao longo da história, o fenômeno da suspensão ou da levitação de objetos sempre atraiu a atenção e o imáginário da humanidade para a possibilidade surpreendente de reproduzir o comportamento das aves e desafiar a ação gravitacional, que nos mantinham limitados ao solo. Dentre todos os métodos de levitação de objetos, a técnica de levitação magnética é a que atrai mais interesse atualmente e que possui maior capacidade de apresentar tecnologias promissoras ao mercado, sobretudo no setor de transporte de passageiros e na área industrial, e impactar de maneira positiva grande parte da sociedade, contribuindo para o seu bem-estar. Sob este cenário favorável para a levitação magnética, este trabalho se propõe a primeiramente analisar em detalhes todas as formas de suspensão de objetos anteriormente desenvolvidas, realizando uma retrospectiva sobre as técnicas acústica, óptica, aeroestática, aerodinâmica e eletrostática, descrevendo o princípio de funcionamento de cada uma delas, as suas vantagens e desvantagens e as aplicações em que são frequentemente encontradas. Em seguida, este trabalho apresenta todas as possíveis variações da levitação magnética, com as respectivas formulações matemáticas de seus sistemas de levitação, ressaltando o estado da arte das suas aplicações acadêmicas, industriais, de meios de transporte ou de bens de consumo, indicando os projetos de trens MagLev, e fabricantes de máquinas e equipamentos dotados desta tecnologia. Palavras-chave: EDL, EML, Hovercraft, MagLev, Mancais Magnéticos, SML, TACV vii Abstract of Undergraduate Project presented to the Department of Electrical Engineering of POLI/UFRJ as a partial fulfillment of the requirements for the degree of Engineer. LEVITATION METHODS RETROSPECTIVE AND MAGNETIC LEVITATION TECHNOLOGY STATE OF THE ART Hugo Pelle Ferreira April/2017 Advisor: Richard Magdalena Stephan Course: Electrical Engineering Througout history, the suspension or levitation phenomenon have always attracted the humanity’s imaginary to the astonishing possibility of reproduce the birds’ behavior and defy gravity, that had maintained us limited to the ground. In addition to all the levitation methods, the magnetic levitation technique is the one that has attracted more interest currently and has the most promising technologies to the market, mainly to the passengers’ transportation and at the industry level, to impact in a positive way the whole society, contributing to their wellbeing. Under this favorable scenarium to the magnetic levitation, this work will first analize in details all the suspension methods previously developed, doing a retrospective of the acoustic, optical, aerostatic, aerodynamic and electrostatic’s techniques, describing the each one’s operating principle, their advantages and disadvantages, and their main applications. After, this undergraduate project will present all the possible magnetic levitation schemes, with their respective mathematical analysis, highlighting the academic, industrial, transportation, and consumer goods state of the art, indicating the MagLev trains’ projects, and the machinery manufacturers with this technology. Keywords: EDL, EML, Hovercraft, MagLev, Magnetic Bearings, SML, TACV viii Sumário Sumário ...................................................................................................................... ix Lista de Símbolos ...................................................................................................... xi Listas de Abreviaturas e Siglas ............................................................................... xii Listas de Figuras ..................................................................................................... xvi Listas de Tabelas ................................................................................................... xviii 1. Introdução ............................................................................................................ 1 1.1. Motivação e Tema ......................................................................................................... 1 1.2. Objetivos e Metodologia ..............................................................................................
Recommended publications
  • An Artificial-Gravity Space-Settlement Ground-Analogue Design Concept
    AIAA 2016-5388 AIAA SPACE Forum 13 - 16 September 2016, Long Beach, California AIAA SPACE 2016 An Artificial-Gravity Space-Settlement Ground-Analogue Design Concept Gregory A. Dorais1 NASA Ames Research Center, Moffett Field, CA, 94035 The design concept of a modular and extensible hypergravity facility is presented. Several benefits of this facility are described including that the facility is suitable as a full- scale artificial-gravity space-settlement ground analogue for humans, animals, and plants for indefinite durations. The design is applicable as an analogue for on-orbit settlements as well as those on moons, asteroids, and Mars. The design creates an extremely long-arm centrifuge using a multi-car hypergravity vehicle travelling on one or more concentric circular tracks. This design supports the simultaneous generation of multiple-gravity levels to explore the feasibility and value of and requirements for such space-settlement designs. The design synergizes a variety of existing technologies including centrifuges, tilting trains, roller coasters, and optionally magnetic levitation. The design can be incrementally implemented such that the facility can be operational for a small fraction of the cost and time required for a full implementation. Brief concept of operation examples are also presented. Nomenclature C = centigrade CFT = cabin floor thickness Ch = cabin height CL = cabin length (m) CLm = the minimum Cabin length margin between top inner cabin corners of adjacent HyperGravity Vehicle (HGV) Cars (HGVC)s, i.e., the length
    [Show full text]
  • Enabling Sustainable Exploration Through the Commercial Development of Space
    54th International Astronautical Congress 2003 (IAC 2003) Bremen, Germany 29 September - 3 October 2003 Volume 1 of 8 ISBN: 978-1-61839-418-7 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Copyright© (2003) by the International Astronautical Federation All rights reserved. Printed by Curran Associates, Inc. (2012) For permission requests, please contact the International Astronautical Federation at the address below. International Astronautical Federation 94 bis, Avenue de Suffren 75015 PARIS - France Phone: +33 1 45 67 42 60 Fax: +33 1 42 73 21 20 [email protected] Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2634 Email: [email protected] Web: www.proceedings.com TABLE OF CONTENTS VOLUME 1 Enabling Sustainable Exploration through the Commercial Development of Space .................................................................................1 Mark Nall, Joseph Casas Space Telescope Mission Design For L2 Point Stationing .............................................................................................................................6 Jill M. Cattrysse Interplanetary Missions Utilising Capture and Escape Through Lagrange Points..................................................................................14 Stephen Kemble A Numerical Study of the Gravitational
    [Show full text]
  • By James Powell and Gordon Danby
    by James Powell and Gordon Danby aglev is a completely new mode of physically contact the guideway, do not need The inventors of transport that will join the ship, the engines, and do not burn fuel. Instead, they are the world's first wheel, and the airplane as a mainstay magnetically propelled by electric power fed superconducting Min moving people and goods throughout the to coils located on the guideway. world. Maglev has unique advantages over Why is Maglev important? There are four maglev system tell these earlier modes of transport and will radi- basic reasons. how magnetic cally transform society and the world economy First, Maglev is a much better way to move levitation can in the 21st Century. Compared to ships and people and freight than by existing modes. It is wheeled vehicles—autos, trucks, and trains- cheaper, faster, not congested, and has a much revolutionize world it moves passengers and freight at much high- longer service life. A Maglev guideway can transportation, and er speed and lower cost, using less energy. transport tens of thousands of passengers per even carry payloads Compared to airplanes, which travel at similar day along with thousands of piggyback trucks into space. speeds, Maglev moves passengers and freight and automobiles. Maglev operating costs will at much lower cost, and in much greater vol- be only 3 cents per passenger mile and 7 cents ume. In addition to its enormous impact on per ton mile, compared to 15 cents per pas- transport, Maglev will allow millions of human senger mile for airplanes, and 30 cents per ton beings to travel into space, and can move vast mile for intercity trucks.
    [Show full text]
  • ESHGF Design Concept Final 20151201
    NASA/TM—2015–218935 Modular Extended-Stay HyperGravity Facility Design Concept An Artificial-Gravity Space-Settlement Ground Analogue Gregory A. Dorais, Ph.D. Ames Research Center, Moffett Field, California December 2015 NASA STI Program ... in Profile Since its founding, NASA has been dedicated • CONFERENCE PUBLICATION. to the advancement of aeronautics and space Collected papers from scientific and science. The NASA scientific and technical technical conferences, symposia, seminars, information (STI) program plays a key part in or other meetings sponsored or helping NASA maintain this important role. co-sponsored by NASA. The NASA STI program operates under the • SPECIAL PUBLICATION. Scientific, auspices of the Agency Chief Information Officer. technical, or historical information from It collects, organizes, provides for archiving, and NASA programs, projects, and missions, disseminates NASA’s STI. The NASA STI often concerned with subjects having program provides access to the NTRS Registered substantial public interest. and its public interface, the NASA Technical Reports Server, thus providing one of the largest • TECHNICAL TRANSLATION. collections of aeronautical and space science STI English-language translations of foreign in the world. Results are published in both non- scientific and technical material pertinent to NASA channels and by NASA in the NASA STI NASA’s mission. Report Series, which includes the following report types: Specialized services also include organizing and publishing research results, distributing • TECHNICAL PUBLICATION. Reports of specialized research announcements and completed research or a major significant feeds, providing information desk and personal phase of research that present the results of search support, and enabling data exchange NASA Programs and include extensive data services.
    [Show full text]
  • Case of High-Speed Ground Transportation Systems
    MANAGING PROJECTS WITH STRONG TECHNOLOGICAL RUPTURE Case of High-Speed Ground Transportation Systems THESIS N° 2568 (2002) PRESENTED AT THE CIVIL ENGINEERING DEPARTMENT SWISS FEDERAL INSTITUTE OF TECHNOLOGY - LAUSANNE BY GUILLAUME DE TILIÈRE Civil Engineer, EPFL French nationality Approved by the proposition of the jury: Prof. F.L. Perret, thesis director Prof. M. Hirt, jury director Prof. D. Foray Prof. J.Ph. Deschamps Prof. M. Finger Prof. M. Bassand Lausanne, EPFL 2002 MANAGING PROJECTS WITH STRONG TECHNOLOGICAL RUPTURE Case of High-Speed Ground Transportation Systems THÈSE N° 2568 (2002) PRÉSENTÉE AU DÉPARTEMENT DE GÉNIE CIVIL ÉCOLE POLYTECHNIQUE FÉDÉRALE DE LAUSANNE PAR GUILLAUME DE TILIÈRE Ingénieur Génie-Civil diplômé EPFL de nationalité française acceptée sur proposition du jury : Prof. F.L. Perret, directeur de thèse Prof. M. Hirt, rapporteur Prof. D. Foray, corapporteur Prof. J.Ph. Deschamps, corapporteur Prof. M. Finger, corapporteur Prof. M. Bassand, corapporteur Document approuvé lors de l’examen oral le 19.04.2002 Abstract 2 ACKNOWLEDGEMENTS I would like to extend my deep gratitude to Prof. Francis-Luc Perret, my Supervisory Committee Chairman, as well as to Prof. Dominique Foray for their enthusiasm, encouragements and guidance. I also express my gratitude to the members of my Committee, Prof. Jean-Philippe Deschamps, Prof. Mathias Finger, Prof. Michel Bassand and Prof. Manfred Hirt for their comments and remarks. They have contributed to making this multidisciplinary approach more pertinent. I would also like to extend my gratitude to our Research Institute, the LEM, the support of which has been very helpful. Concerning the exchange program at ITS -Berkeley (2000-2001), I would like to acknowledge the support of the Swiss National Science Foundation.
    [Show full text]
  • Development and Testing of an Axial Halbach Magnetic Bearing
    NASA/TM—2006-214357 Development and Testing of an Axial Halbach Magnetic Bearing Dennis J. Eichenberg, Christopher A. Gallo, and William K. Thompson Glenn Research Center, Cleveland, Ohio July 2006 NASA STI Program . in Profile Since its founding, NASA has been dedicated to the • CONFERENCE PUBLICATION. Collected advancement of aeronautics and space science. The papers from scientific and technical NASA Scientific and Technical Information (STI) conferences, symposia, seminars, or other program plays a key part in helping NASA maintain meetings sponsored or cosponsored by NASA. this important role. • SPECIAL PUBLICATION. Scientific, The NASA STI Program operates under the auspices technical, or historical information from of the Agency Chief Information Officer. It collects, NASA programs, projects, and missions, often organizes, provides for archiving, and disseminates concerned with subjects having substantial NASA’s STI. The NASA STI program provides access public interest. to the NASA Aeronautics and Space Database and its public interface, the NASA Technical Reports Server, • TECHNICAL TRANSLATION. English- thus providing one of the largest collections of language translations of foreign scientific and aeronautical and space science STI in the world. technical material pertinent to NASA’s mission. Results are published in both non-NASA channels and by NASA in the NASA STI Report Series, which Specialized services also include creating custom includes the following report types: thesauri, building customized databases, organizing and publishing research results. • TECHNICAL PUBLICATION. Reports of completed research or a major significant phase For more information about the NASA STI of research that present the results of NASA program, see the following: programs and include extensive data or theoretical analysis.
    [Show full text]
  • Časopis Ukorak S Vremenom Br. 62
    www. upss.hr [email protected] www. upss.hr [email protected] 6. prosinca 2020. 6. prosinca 2020. glasilo glasilo br. br. 62 62 UDRUGA POMORSKIH STROJARA SPLIT i POMORSKI FAKULTET u SPLITU Časopis "UKORAK S VREMENOM“ 6. prosinca 2020. glasilo br. 62 Izdavač: UDRUGA POMORSKIH STROJARA – SPLIT MARINE ENGINEER'S ASSOCIATION – SPLIT CROATIA Suizdavač: 32 godina izlaženja Aja 2 Ukorak s vremenom br. 62 UDRUGA POMORSKIH STROJARA SPLIT i POMORSKI FAKULTET u SPLITU BRODOSPAS d.o.o. – Split PODUPIRUĆE TVRTKE I USTANOVE Glasilo Udruge pomorskih strojara BRODOSPAS d.o.o. – Split Split (UPSS) GLOBTIK EXPRESS Agency - Split (Marine Engineer's Association Split) HRVATSKI REGISTAR BRODOVA www.upss.hr [email protected] – Split Adresa: Udruga Pomorskih strojara Split, JADROPLOV d.d. – Split 21000 SPLIT, Dražanac 3A, p.p. 406 KRILO SHIPPING Co. - Jesenice Tel./Faks/Dat.: (021) 398 981 Žiro-račun: FINA 2330003- 1100013277 ❖ PLOVPUT d.o.o. – Split OIB: 44507975005 Sveučilište u Splitu Matični broj; 3163300 ISBN 1332-1307 POMORSKI FAKULTET Za izdavača: Frane Martinić, predsjednik Sveučilište u Splitu UPSS-a i Pomorski fakultet u Splitu F E S B – FAKULTET ELEKTRO- Glasilo uređuje 'Uređivački savjet': Frane Martinić, Neven Radovniković, Vinko Zanki, izv. TEHNIKE, STROJARSTVA I prof., dr. sc. Gorana Jelić Mrčelić i Branko Lalić, mag. ing. BRODOGRADNJE Izvršni urednik i korektor: Boris Abramov Naslovna stranica: Nastja Radić POMORSKA ŠKOLA SPLIT Glasilo br. 62 - RR NAVIS CONSULT – ured Rijeka Split, 6. prosinca 2020. Glasilo više ne izlazi u tiskanom obliku, već se objavljuje SINDIKAT POMORACA HRVATSKE na našoj web stranici: www.upss.hr ZOROVIĆ MARITIME SERVICES Poča sni članovi udruge: – Rijeka dr.
    [Show full text]
  • STI Program Bibliography
    Scientific and Technical Information Program Affordable Heavy Lift Capability: 2000-2004 This custom bibliography from the NASA Scientific and Technical Information Program lists a sampling of records found in the NASA Aeronautics and Space Database. The scope of this topic includes technologies to allow robust, affordable access of cargo, particularly to low-Earth orbit. This area of focus is one of the enabling technologies as defined by NASA’s Report of the President’s Commission on Implementation of United States Space Exploration Policy, published in June 2004. Best if viewed with the latest version of Adobe Acrobat Reader Affordable Heavy Lift Capability: 2000-2004 A Custom Bibliography From the NASA Scientific and Technical Information Program October 2004 Affordable Heavy Lift Capability: 2000-2004 This custom bibliography from the NASA Scientific and Technical Information Program lists a sampling of records found in the NASA Aeronautics and Space Database. The scope of this topic includes technologies to allow robust, affordable access of cargo, particularly to low-Earth orbit. This area of focus is one of the enabling technologies as defined by NASA’s Report of the President’s Commission on Implementation of United States Space Exploration Policy, published in June 2004. OCTOBER 2004 20040095274 EAC trains its first international astronaut class Bolender, Hans, Author; Bessone, Loredana, Author; Schoen, Andreas, Author; Stevenin, Herve, Author; ESA bulletin. Bulletin ASE. European Space Agency; Nov 2002; ISSN 0376-4265; Volume 112, 50-5; In English; Copyright; Avail: Other Sources After several years of planning and preparation, ESA’s ISS training programme has become operational. Between 26 August and 6 September, the European Astronaut Centre (EAC) near Cologne gave the first ESA advanced training course for an international ISS astronaut class.
    [Show full text]
  • Speed Superconducting Maglev
    Laurence E. (Larry) Blow President, MaglevTransport, Inc. www.maglevtransport.com High Speed Rail World 2010 Conference Washington, D.C. April 19-22, 2010 1. Too expensive 2. Just another train 3. Replaces automobiles 4. Still experimental 5. Not safe or reliable 6. Can’t carry freight 7. Can’t do anything a train can’t do 8. Incompatible with rail 9. Magnetic fields are harmful 10. It’s noisy and “belches” CO2 UK Ultraspeed analysis suggests otherwise • Maglev and rail data from UK Ultraspeed website: www.500kmh.com UK capital cost analysis suggests otherwise Operating costs tell a similar story Infrastructure cost comparisons are illuminating Maintenance cost comparisons favor maglev Dictionary usage of “train” can be misleading It’s not “a line of railway cars coupled together and drawn by a locomotive,” but it’s close to “a procession (of wagons, mules, camels or vehicles) traveling together in single file.” Maglev’s more like an airplane without wings Lightweight / aerospace materials, pressurized car bodies Sleek, futuristic body shapes without overhead wires, etc. It’ll never happen -- we love our cars too much Studies since 1989-1991 show this effect TRB’s “In Pursuit of Speed” did good work Maglev must always be faster than autos Real competition is the short-haul air market Not a myth for many years, since maglev testing started in the 1970s, but: 2001: Contracts signed for construction in China 2003: Shanghai airport connector opens 2009: 210,000 one-way trips taken since 2004 Not a myth for many years,
    [Show full text]
  • Unit VI Superconductivity JIT Nashik Contents
    Unit VI Superconductivity JIT Nashik Contents 1 Superconductivity 1 1.1 Classification ............................................. 1 1.2 Elementary properties of superconductors ............................... 2 1.2.1 Zero electrical DC resistance ................................. 2 1.2.2 Superconducting phase transition ............................... 3 1.2.3 Meissner effect ........................................ 3 1.2.4 London moment ....................................... 4 1.3 History of superconductivity ...................................... 4 1.3.1 London theory ........................................ 5 1.3.2 Conventional theories (1950s) ................................ 5 1.3.3 Further history ........................................ 5 1.4 High-temperature superconductivity .................................. 6 1.5 Applications .............................................. 6 1.6 Nobel Prizes for superconductivity .................................. 7 1.7 See also ................................................ 7 1.8 References ............................................... 8 1.9 Further reading ............................................ 10 1.10 External links ............................................. 10 2 Meissner effect 11 2.1 Explanation .............................................. 11 2.2 Perfect diamagnetism ......................................... 12 2.3 Consequences ............................................. 12 2.4 Paradigm for the Higgs mechanism .................................. 12 2.5 See also ...............................................
    [Show full text]
  • Superconducting Maglev(Scmaglev)
    THE REVIEW SUPERCONDUCTING MAGLEV (SCMAGLEV) , http: // jr-central.co.jp/ 17.05 SUPERCONDUCTING MAGLEV (SCMAGLEV) e Superconducting Maglev -Next Generation Transportation System e Superconducting Maglev (SCMAGLEV) is an internationally acclaimed, cutting-edge technology unique to Japan. Unlike conventional railway systems that rely on adhesion between wheel and rail for movement, the Superconducting Maglev is a contactless transportation system that accelerates and decelerates by the magnetic force generated between the onboard superconducting magnets and ground coils, which enables a stable ultra-high speed operation at the speed of 311mph. Research of a totally new levitated transportation system commenced in 1962, and running tests on the Yamanashi Maglev Line began in 1997. Since then, a wide range of tests were conducted and cleared. With these test results, the Maglev Technological Practicality Evaluation Committee (MTPEC) under the Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has evaluated Superconducting Maglev technology at each stage. In July 2009, MTPEC acknowledged that the technology has been established comprehensively and systematically, which makes it possible to draw up detailed specications and technological standards for revenue service. In December 2011, the technical standards of the Superconducting Maglev were enacted by the Japanese Minister of Land, Infrastructure, Transport and Tourism. In August 2013, the Yamanashi Maglev Line was fully renewed and extended to 42.8km (26.6miles), and is currently operating using Series L0 (L Zero). is leading edge Japanese technology is the next generation of super fast train travel. e Principles of the Superconducting Maglev System How the Superconducting Maglev runs at ultra high-speed? In order to operate at ultra high-speed, the Superconducting Maglev levitates 10cm (about 3.9in) above ground by the magnetic force Electric resistance generated between the onboard Superconducting Magnets and ground coils.
    [Show full text]
  • Effect of Hyperloop Technologies on the Electric Grid and Transportation Energy
    Effect of Hyperloop Technologies on the Electric Grid and Transportation Energy January 2021 United States Department of Energy Washington, DC 20585 Department of Energy |January 2021 Disclaimer This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Department of Energy |January 2021 [ This page is intentionally left blank] Effect of Hyperloop Technologies on Electric Grid and Transportation Energy | Page i Department of Energy |January 2021 Executive Summary Hyperloop technology, initially proposed in 2013 as an innovative means for intermediate- range or intercity travel, is now being developed by several companies. Proponents point to potential benefits for both passenger travel and freight transport, including time-savings, convenience, quality of service and, in some cases, increased energy efficiency. Because the system is powered by electricity, its interface with the grid may require strategies that include energy storage. The added infrastructure, in some cases, may present opportunities for grid- wide system benefits from integrating hyperloop systems with variable energy resources.
    [Show full text]