How does vactrain

The idea of ​​the vacuum train was expressed by Robert Goddard in 1909 in the journal "Scientific American". He proposed to organize the movement of vehicles in the vacuum tube based on magnetic levitation. The world's first experiments with the body moving in the vacuum tube due to the electromagnetic field set in the 1910s, a Russian professor Boris Weinberg. Soon, however, they were suspended because of the First World War. Later experiments were in Germany, Japan, Switzerland and England, and in 2012, Elon Musk presented Hyperloop project, which is also still in the development stage. In addition to the SpaceX company works are Virgin Hyperloop One and Hyperloop Transportation Technologies to create the vacuum train. What will work vactrain - about it in today's issue!

How does vactrain How does vactrain

Hyperloop is an enclosed aerial line in the form of two parallel tubes, connecting the end points of the route. Inside single capsule 25-30 meters will move in one direction at a rate of 480 to 1,220 km / h. Intervals of motion according to the project by only 30 seconds. Engineers developed two variants of the system - passenger and cargo-passenger. In the first embodiment, the pipe diameter is 2, m 2, and the capsule will contain 28 people. In the second - it is proposed to use the pipeline diameter of 3, 3 meters, and in the capsules besides the people to place up to three cars. It is worth noting that in Hyperloop case is not completely vacuum train. It is enough forvakkuma (with a pressure of 100 Pascal), which is supported by moderate power pumps and pipe walls of conventional steel 20-25 mm thick.

How does vactrain

However, according to the calculations of the capsule at high speeds everything will collide with oncoming air masses. They decided to use to create an air cushion: located in the forward part of the nozzle of the capsule will redirect air-flow under the bottom. Thus there is no need to use more expensive magnetic cushion.

The capsule is driven by a linear motor. Stators serve aluminum rail 15 meters long at the bottom of the pipe, which will be repeated every 110 kilometers. The rotor will be in each capsule, the required constant power is only 100 kilowatts. Since the stator not only performs acceleration and deceleration but, in the latter case, the kinetic energy of the capsule will be converted into electricity.

In case of depressurization in the fore part of the capsule is provided an electric compressor, a compressed air accumulator on board. Also accommodated in capsules 1, 5 tons of batteries, charge which will last for 45 minutes, so that when power outages reach the nearest station.

How does vactrain

It is worth noting that the company Virgin Hyperloop One Hyperloop Transportation Technologies and considering the possibility of using magnetic levitation instead of an air cushion that raise the price of creating the vacuum line trains, but will minimize possible problems with management. In this case we have in mind is not active levitation, like maglev, and passive. It involves the movement of the permanent magnets on the conductive surface.

Currently there are active trials vactrain different companies. So, in December last year Virgin Hyperloop One could accelerate the capsule to its record high at the moment speed 387 km / h. The first line of vacuum trains can appear in India, USA, United Arab Emirates and South Korea.