While the topic of Hyperloop vacuum trains has subsided considerably in the past couple of years, a prototype of a train was shown in China, which is designed to travel at speeds up to 620 km / h, and at the same time, the creators are working on increasing it to 800 km / h, and this is already very close to estimated speeds for Hyperloop.
The prototype was created by scientists at Southwestern Jiaotong University. The development is based on the technology of magnetic levitation, which makes the novelty similar to the maglev. However, Chinese technology is supposedly much cheaper and more efficient. In particular, according to the calculations of scientists, about 39-46 million dollars are needed to build one kilometer of such a track, compared to about 31 million in the case of a conventional high-speed railway. As for the prospects, the creators of the prototype say that the technology can become commercial in six years.
Compared to the Maglev, the new train has another advantage: it can start levitating immediately, and not after gaining a certain speed. Energy efficiency and lower cost are provided by the use of liquid nitrogen against liquid helium in Japanese maglev trains. In the latter case, the helium temperature should be -269 degrees, and for liquid nitrogen such a low temperature is not required.
One of the problems that scientists have to solve is the high noise level. At such high speeds, it is much more difficult to fight it than in any ordinary train.
Considering China’s plans to build high-speed transport routes in its country, it is quite possible that in 10 years, trains capable of traveling at speeds above 600 or even 800 km / h will really become a reality without any vacuum tunnels.
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