On the future sustainable ultra-high-speed maglev: An energy-economical superconducting linear thrusting system
Name
23ja118_full.pdf
Size
7.27 MB
Format
Adobe PDF
Checksum (MD5)
deb95bf464b774a6e37d2ad5345e7bde
Author(s)
Dong, Fangliang
Hao, Luning
Park, Dongkeun
Iwasa, Yukikazu
Huang, Zhen
Date Issued
June 2023
Journal
Energy Conversion and Management
Publisher
Elsevier
Abstract
Along with 1000-km/h magnetically levitated trains (maglevs), an era of future traveling is approaching. With only ∼1/5 energy consumption per passenger kilometer while achieving a similar speed compared to airplanes, the ultra-high-speed maglevs would change the way the world moves with an on-demand sustainable mass transportation system that connects cities in minutes. Meanwhile, with ever-advancing superconducting technology, the zero-joule-loss magnet in high-density-energy preservation is much improved with strong magnetic field. This consequently enables the energy-efficient but powerful superconducting linear thrusting system - the key part that drives the maglevs to the speed, in an even more energy-friendly way. Here, we take advantage of superconductor, and present successful solutions to two energy bottlenecks regarding energy preservation and conversion unique to this novel thrusting system, that is, 1) on-board feeding power constraint and 2) field-ripple-caused loss, by demonstrating a prototype with two merits: 1) its on-board superconducting propulsive magnet can operate as a standalone system free of any on-board feeding powers for maintaining energizing and cryogenic cooling; 2) the ground propulsive structure can greatly suppress thermal loss during operation. We hope the work could solve energy issues in the future maglev, and prompt the process of transport electrification and decarbonization.
Description
Submitted for publication in Energy Conversion and Management
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1016/j.enconman.2023.117247
