China launches the world’s first permanent magnetic levitation train

https://sputniknews.com/20220817/china-launches-worlds-first-permanent-magnetic-levitation-train–1099708044.html

China launches the world’s first permanent magnetic levitation train

China launches the world’s first permanent magnetic levitation train

The new variant of maglev can’t boast of the jet-like speeds that its competitors on superconducting magnets can have, but uses considerably less… 17.08.2022, Sputnik International

2022-08-17T18:56+0000

2022-08-17T18:56+0000

2022-08-17T18:56+0000

science & technology

China

magnetic levitation train (maglev)

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China has unveiled the world’s first functioning permanent magnetic levitation (PML) maglev – train that is set in motion using the power of magnets. The 800-meter test line was installed in Jiangxi Province. Maglevs have no wheels and their carriages are suspended in the air and set in motion using a set of magnets. Most maglevs rely on superconducting magnets — the super-cooled magnets allow trains to reach speeds nearly comparable to modern airplanes due to the lack of friction in the process. However, maintaining extremely low magnet temperatures is both complicated and energy-intensive. The makers of PML relied on permanent rare-earth magnets instead. The technology still uses electricity to move the train, but less than superconducting magnets. In addition, the PML maglev line does not consume electricity while a train is stopping. It is generally believed that PML is 31% more energy efficient than superconducting alternatives. The advantage of using PML is speed: the maglev line installed in Jiangxi province can only reach 80 kilometers per hour and can currently carry two carriages with 88 people on board. The technology is fairly new and so further developments in speed, capacity and efficiency may be just around the corner.

https://sputniknews.com/20210720/chinas-speediest-train-a-600-kmh-maglev-rolls-off-assembly-line-in-qingdao-1083420670.html

China

2022

Tim Corso

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Tim Corso

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china magnetic levitation train (maglev)

china magnetic levitation train (maglev)

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The new variant of maglev can’t boast of the jet-like speeds its competitors on superconducting magnets can, but it consumes significantly less electricity.

China has unveiled the world’s first functioning permanent magnetic levitation (PML) maglev – train that is set in motion using the power of magnets. The 800-meter test line was installed in Jiangxi Province.

Maglevs have no wheels and their carriages hang in the air and are set in motion using a set of magnets. Most maglevs rely on superconducting magnets — the super-cooled magnets allow trains to reach speeds nearly comparable to modern airplanes due to the lack of friction in the process. However, maintaining extremely low magnet temperatures is both complicated and energy-intensive.

The makers of PML relied on permanent rare-earth magnets instead. The technology still uses electricity to move the train, but less than superconducting magnets. In addition, the PML maglev line does not consume electricity while a train is stopping. It is generally believed that PML is 31% more energy efficient than superconducting alternatives.

A high-speed magnetic train, capable of a top speed of 600 km/h, is pictured in Qingdao, China's Shandong province 20 July 2021 - Sputnik International, 1920, 20.07.2021

China’s fastest train, a 600 km/h Maglev, rolls off the assembly line in Qingdao

The advantage of using PML is speed: the maglev line installed in Jiangxi province can only reach 80 kilometers per hour and can currently carry two carriages with 88 people on board. The technology is fairly new and so further developments in speed, capacity and efficiency may be just around the corner.

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