Presentation on maglev

presentation for general profeciency for engineering students, latest technology, maglev trains

1. GENERAL PROFECIENCY REPORT ON MAGLEV TRAINS Submitted by- Akshat Jain Roll No.-13/167 Trains that fly on air.

2. What is meant by Maglev? Maglev = Mag netic + Lev iation Any thing which may levitate(raise or float) by means of a magnetic power is simply called as magnetic levitation.

3. Motion of the Maglev train Purely based on magnetism and magnetic fields Magnetic fields produced by powerful electromagnets Wheels eliminated from the train allowing it to essentially move in the air frictionlessly

4. Basic Principle of Maglev Trains Maglev trains have to perform the following functions to operate in high speeds 1.Levitation 2.Propulsion 3.Lateral Guidance

5. Magnetic leviation system Based on the techniques used for Levitation there are three types of Maglev trains Electro magnetic Suspension Electro dynamic Suspension 3. Inductrack

6. Electromagnetic suspension The electromagnets on the underside of the train pull it up to the ferromagnetic stators on the track and levitate the train. The magnets on the side keep the train from moving from side to side.

7. Electrodynamic Suspension Magnetic field produced by superconducting magnets located at the bottom of the train The train is levitated by the repulsive and attractive force between the magnetic fields of the train and the guideway

8. inductrack The major difference between the Inductrack and the Electrodymanic System is the use of permanent magnets rather than superconducting magnets.

9. PROPULSION An alternating current is ran through electromagnet coils on the guide walls of the guide way. This creates a magnetic field that attracts and repels the superconducting magnets on the train and propels the train forward. Braking is accomplished by sending an alternating current in the reverse direction so that it is slowed by attractive and repulsive forces.

10. GUIDANCE The Maglev train is a noncontact system that requires a guiding force for the prevention of lateral displacement

11. When one side of the train nears the side of the guideway , the super conducting magnet on the train induces a repulsive force from the levitation coils on the side closer to the train and an attractive force from the coils on the farther side. This keeps the train in the center.

12. COMPARISION OF MAGLEV AND WHEEL TRAIN MAGLEV IRON WHEEL No mechanical contact No possibility of derailment Mantainence very little Travels at very high speed Contact between wheels and rails Derails from a minor defect Needs mantainence quite regularly Slower than maglev trains

13. Advantages The maglev tracks take up a lot less land, because they are elevated. This also reduces the amount of collisions and accidents. Maglev trains use far less energy than other types of transportation. Maglev trains do not pollute Maglev trains are much faster Less maintenance

14. Disadvantages Cost and infrastructure Weight of the electromagnets is also an issue Feasible only in urban areas

15. RECORDS!! On 21 st April, 2015 a maglev train operated by central Japan Railway has set a world record of 603 kmph in a test run surpassing its previous record of 581 kmph.

16. Conclusion More energy efficient and environment friendly than present day railway system Maglev will have a positive impact on sustainability. Maglev trains are the future of the transportation world.

17. Thank You