Super Conduting Train

SUPER CONDUTING TRAIN Driving without wheels, Flying without wings

Maglev runs on the principle of magnetic levitation.

Maglev is noiseless ,friction less , and require no maintenance.

The lack of friction allow maglev vehicle to travel at a speed over 300 miles/hr.

Electrified transport reduces pollution.,[object Object]

Transrapid Transrapid train is a German monorail system using magnetic levitation. Based on a patent from 1934, planning of an actual Transrapid system started in 1969.

The test facility for the system in Emsland, Germany was completed in 1987, and in 1989 a Transrapid train reached a record breaking speed of 436 kilometers per hour.

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

Types of Maglev Trains Based on the technique used for Leviation the are two types of Maglev trains 1. Electromagnetic Suspension -Attractive 2. Electrodynamic Suspension -repulsive

Electromagnetic Suspension(EMS) Electromagnetic Suspension uses electromagnets to leviate the train

Electrodynamic Suspension Electrodynamic Suspension uses Superconductors for leviation, propulsion and lateral guidance

The Maglev system The Maglev system applies the superconducting technology of low-temperature superconductors, Nb-Ti wires, and SCMs that require liquid helium as a coolant. In addition to these well-developed technologies, high-critical temperature superconductors that show superconductivity at liquid nitrogen are also prospective components for the Maglev system.

Levitation System’s Power Supply Batteries on the train power the system, and therefore it still functions without propulsion. The batteries can levitate the train for 30 minutes without any additional energy. Linear generators in the magnets on board the train use the motion of the train to recharge the batteries. Levitation system uses less power than the trains air conditioning.

Different speeds are achieved by varying the intensity of the current.

Only the section of track where the train is traveling is electrified.,[object Object]

When a current is passed through it, and the electromagnet switched on, there is attraction, and the levitation electromagnets, which are below the rail, raise up to meet the rail. The car levitates.,[object Object]

This keeps the train in the center. ,[object Object]

This configuration ensures that when ever a levitational force is exerted, a lateral guidance force occurs as well.

If the electromagnet starts to shift laterally from the center of the rail, the lateral guidance force is exerted in proportion to the extent of the shift, bringing the electromagnet back into alignment.,[object Object]

The SCM (Super Conducting Magnet) ,[object Object]

The cylindrical unit at the top is a tank holding liquefied helium and nitrogen.

The bottom unit is an SC coil alternately generating N poles and S poles. ,[object Object]

EMS systems can only levitate the train using the magnets onboard, not propel it forward.

Over long distances where the cost of propulsion coils could be prohibitive, a propeller or jet engine could be used.,[object Object]

Braking is accomplished by sending an alternating current in the reverse direction so that it is slowed by attractive and repulsive forces.,[object Object]

When a current is supplied to the windings, it creates a traveling alternating current that propels the train forward by pushing and pulling.,[object Object]

The operating costs of a maglev system are approximately half that of conventional long-distance railroads.

Research has shown that the maglev is about 20 times safer than airplanes, 250 times safer than conventional railroads, and 700 times safer than automobile travel. ,[object Object]

The materials used to construct maglev vehicles are non-combustible, poor penetration transmitters of heat, and able to withstand fire.,[object Object]

Super Conduting Train

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