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Low Pressure Tube Transport—An Alternative to Ground Road Transport—Aerodynamic and Other Problems and Possible Solutions

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  • Janusz Piechna

    (Institute of Aeronautics and Applied Mechanics, Warsaw University of Technology, 00-665 Warsaw, Poland)

Abstract

This paper presents the concept of one possible but unconventional implementation of a Low Pressure Tube Transport (LPTT) system for a network with station-to-station distances of 300 km, based on the use of circular tunnels in which modular vehicles consisting of three interconnected functional segments move on wheels with airless tires. The physical limitations associated with high-speed vehicle travel in tunnels are presented. The reasons for the expected inconvenience in the travel system, compensated by short travel times, are justified. Assumptions for the use of locomotion, safety, and passenger segments in the construction of a vacuum modular vehicle are presented, as well as systems to ensure the efficient conversion of serial traffic in tunnels to parallel traffic in station areas. Schemes of station construction and traffic organization in the station area are presented, as well as assumptions for a number of systems increasing the safety of vehicle traffic used in emergency situations. Visualizations of some solutions are presented. Details of the construction of a locomotive segment based on a multi-wheel system of airless wheels with the use of a system of linear motors for acceleration and an inertial drive system between them to reduce its weight are presented. Some conclusions from tests conducted on built simulators, mechanical and virtual, of the passenger segment of a vacuum vehicle are discussed.

Suggested Citation

  • Janusz Piechna, 2021. "Low Pressure Tube Transport—An Alternative to Ground Road Transport—Aerodynamic and Other Problems and Possible Solutions," Energies, MDPI, vol. 14(13), pages 1-33, June.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:13:p:3766-:d:580650
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    References listed on IDEAS

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    1. Jae-Sung Oh & Taehak Kang & Seokgyun Ham & Kwan-Sup Lee & Yong-Jun Jang & Hong-Sun Ryou & Jaiyoung Ryu, 2019. "Numerical Analysis of Aerodynamic Characteristics of Hyperloop System," Energies, MDPI, vol. 12(3), pages 1-17, February.
    2. Olena Stryhunivska & Katarzyna Gdowska & Rafał Rumin, 2020. "A Concept of Integration of a Vactrain Underground Station with the Solidarity Transport Hub Poland," Energies, MDPI, vol. 13(21), pages 1-23, November.
    3. Konstantinos Gkoumas & Michalis Christou, 2020. "A Triple-Helix Approach for the Assessment of Hyperloop Potential in Europe," Sustainability, MDPI, vol. 12(19), pages 1-20, September.
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    Cited by:

    1. Qigang Zhu & Yifan Liu & Ming Liu & Shuaishuai Zhang & Guangyang Chen & Hao Meng, 2021. "Intelligent Planning and Research on Urban Traffic Congestion," Future Internet, MDPI, vol. 13(11), pages 1-17, November.
    2. Zhiwei Zhou & Chao Xia & Xizhuang Shan & Zhigang Yang, 2022. "Numerical Study on the Aerodynamics of the Evacuated Tube Transportation System from Subsonic to Supersonic," Energies, MDPI, vol. 15(9), pages 1-19, April.

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