ABSTRACT•By employing no wheels, maglev eliminates thefriction, and concomitant heat, associated withconventional wheel-on-rail train configurations.•“Driving without wheels, Flying without wings”deals with the present scenario of magneticlevitation (maglev) with Linear induction motor(LIM)
• 1750 – John Mitchell• 1900 – Robert and Emile Bachelet• 1970 – German and Japanese engineers startresearch and development towards theirversions of Maglev technology.INTRODUTION
How maglev worksHow maglev worksA maglev train floats about 10mm aboveA maglev train floats about 10mm abovethe guide way on a magnetic field.the guide way on a magnetic field.2 ways of levitating a train-2 ways of levitating a train-Electromagnetic suspension(EMS) andElectromagnetic suspension(EMS) andElectrodynamic suspension(EDS).Electrodynamic suspension(EDS).
MagLev TrainsMagLev Trains Conventional TrainsConventional TrainsNo Friction = LessNo Friction = LessMaintenanceMaintenanceRoutine MaintenanceRoutine MaintenanceNeededNeededNo Engine = No fuelNo Engine = No fuelrequiredrequiredEngine requires fossilEngine requires fossilfuelsfuelsSpeeds in excess ofSpeeds in excess of300 mph300 mphSpeeds up to 110Speeds up to 110mphmph
• Less energy consumption because no rail-track friction• Requires no fossil fuel which can harm theenvironment.• Less noise pollution since the train never hitsthe track• MagLev guideways and trains take up lessspace than conventional trains
AdvantagesAdvantages• Because the train floats along there is noBecause the train floats along there is nocontact with the ground and therefore nocontact with the ground and therefore noneed for any moving parts.Hence there are noneed for any moving parts.Hence there are nocomponents that would wear out.components that would wear out.• The trains can attain speeds uptoThe trains can attain speeds upto330miles/hr which is not economically viable330miles/hr which is not economically viablefor commercial railwaysfor commercial railways
DisadvantageDisadvantageThe biggest problem is that it isThe biggest problem is that it ismuch more costly than conventionalmuch more costly than conventionaltrack railways and governmentstrack railways and governmentsaround the world arent willing toaround the world arent willing toinvest so heavily in such a project.invest so heavily in such a project.
ApplicationsApplicationsNASA plans to use magnetic levitationfor launching of space vehicles into lowearth orbit.The mining industry will also benefitfrom Maglev.
CONCLUSION Research on this ‘dream train’has been going on for the last30 odd years in various partsof the world.