megnetic levitation ppt

7/29/2019 Megnetic Levitation Ppt

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Magnetic levitation is the latest in

transportation technology and has beenthe interest of many countries around theworld. The idea has been around since

1904 when Robert Goddard, an AmericanRocket scientist, created a theory thattrains could be lifted off the tracks by theuse of electromagnetic rails. Manyassumptions and ideas were broughtabout throughout the following years, butit was not until the 1970s that Japan and

Germany showed interest in it and began


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MEGNETIC LEVITATION

Magnetic levitation, maglev, or magnetic suspension isa method by which an object is suspended with nosupport other than magnetic fields.Magnetic pressure isused to counteract the effects of the gravitational andany other accelerations.

A high-speed rail technology by which a train can travelfree of friction at speeds of 480 kilometers (300 miles)per hour or more. The train is suspended on a magneticcushion about half an inch above an elevated magnetic

track, whose moving magnetic field alternately attractsand repels magnets mounted on the train, which ispushed and pulled along by this process.
http://en.wikipedia.org/wiki/Levitationhttp://en.wikipedia.org/wiki/Magnetic_fieldhttp://en.wikipedia.org/wiki/Magnetic_pressurehttp://en.wikipedia.org/wiki/Gravitational_accelerationhttp://en.wikipedia.org/wiki/Gravitational_accelerationhttp://en.wikipedia.org/wiki/Magnetic_pressurehttp://en.wikipedia.org/wiki/Magnetic_fieldhttp://en.wikipedia.org/wiki/Levitation


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We use idea that to identical poles willrepel.

For that purpose we use electromagnet.

This coil create magnet in iron core butmagnet is reverse way generate a currentin ring and turn into a little magnet which

is simply Lenz law.


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A superconductor is an element, inter-metallic alloy, or a compound that willconduct electricity without resistancebelow a certain temperature.

Resistance produces losses in energyflowing through the material.In a closed loop, an electrical current willflow continuously in a superconducting

material.Highest temperature found (243.2 C)below 30K

E.g. YBa2Cu3O7 (YBCO), Hg (mercury),

NbTi
http://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/Mercury_(element)http://en.wikipedia.org/wiki/Niobium-titaniumhttp://en.wikipedia.org/wiki/Niobium-titaniumhttp://en.wikipedia.org/wiki/Niobium-titaniumhttp://en.wikipedia.org/wiki/Niobium-titaniumhttp://en.wikipedia.org/wiki/Mercury_(element)http://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCOhttp://en.wikipedia.org/wiki/YBCO


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The maglev tracks take up a lot less land,because they are elevated. This alsoreduces the amount of collisions andaccidents.

Maglev trains require Less maintenance(no wear because they float over the track)

Maglev trains are much faster, because

they float over the track eliminating rollingresistance and potentially improving thepower efficiency

No friction

No noise pollution


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Cost is major issue when consideringmaglev trains, especially since theycannot operate on the existing,conventional rails. Guide ways would

need to be built in order to make use ofthis new technology, costingapproximately $8.5 billions.

The weight of the electromagnets in theEMS and EDS systems are also an issue.

A very strong magnetic field is required to

levitate the heavy trains.


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Really fast computers- Inpetaflop(Floating-point Operations PerSecond,also flop/s)computers. A petaflop is athousand-trillion floating point operationsper second. Today's fastest computingoperations have only reached "teraflop"speeds.

Maglev Trains- The magnetized coilrunning along the track, repels the largemagnets on the train's undercarriage,

allowing the train to levitate - -


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Overall, the sustainability of Maglev isvery positive. Although the relative costsof constructing Maglev trains are stillexpensive, there are many other positive

factors that overshadow this. Maglev willcontribute more to our society and ourplanet than it takes away. Considering

everything Maglev has to offer, thetransportation of our future and ourchildrens future is on very capable tracks.


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http://www.physics.ucla.edu/marty/levitron/spinstab.pdf

http://www.superconductors.org/uses.htm http://science.howstuffworks.com/magnet3.ht

m http://www.howstuffworks.com/electromagnet.

htm http://en.wikipedia.org/wiki/Magnet

http://en.wikipedia.org/wiki/Electromagnet http://en.wikipedia.org/wiki/Magnetic_levitatio

n http://my.execpc.com/~rhoadley/maglev.htm

http://www.hfml.science.ru.nl/hfml/froglev.html
http://www.physics.ucla.edu/marty/levitron/spinstab.pdfhttp://www.physics.ucla.edu/marty/levitron/spinstab.pdfhttp://www.superconductors.org/uses.htmhttp://science.howstuffworks.com/magnet3.htmhttp://science.howstuffworks.com/magnet3.htmhttp://www.howstuffworks.com/electromagnet.htmhttp://www.howstuffworks.com/electromagnet.htmhttp://www.howstuffworks.com/electromagnet.htmhttp://en.wikipedia.org/wiki/Magnethttp://en.wikipedia.org/wiki/Magnethttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://my.execpc.com/~rhoadley/maglev.htmhttp://my.execpc.com/~rhoadley/maglev.htmhttp://www.hfml.science.ru.nl/hfml/froglev.htmlhttp://www.hfml.science.ru.nl/hfml/froglev.htmlhttp://www.hfml.science.ru.nl/hfml/froglev.htmlhttp://www.hfml.science.ru.nl/hfml/froglev.htmlhttp://my.execpc.com/~rhoadley/maglev.htmhttp://my.execpc.com/~rhoadley/maglev.htmhttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://en.wikipedia.org/wiki/Magnetic_levitationhttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Electromagnethttp://en.wikipedia.org/wiki/Magnethttp://en.wikipedia.org/wiki/Magnethttp://www.howstuffworks.com/electromagnet.htmhttp://www.howstuffworks.com/electromagnet.htmhttp://www.howstuffworks.com/electromagnet.htmhttp://science.howstuffworks.com/magnet3.htmhttp://science.howstuffworks.com/magnet3.htmhttp://www.superconductors.org/uses.htmhttp://www.superconductors.org/uses.htmhttp://www.physics.ucla.edu/marty/levitron/spinstab.pdfhttp://www.physics.ucla.edu/marty/levitron/spinstab.pdf


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megnetic levitation ppt

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