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On the environmental performance of a high-speed train
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering.
2014 (English)In: International Journal of Rail transportation, ISSN 2324-8378, E-ISSN 2324-8386, Vol. 2, no 1, 59-66 p.Article in journal (Refereed) Published
Abstract [en]

Environmental performance is one of the major considerations of future high-speed trains. Two main issues have been closely investigated in the Green Train programme, namely (1) energy use and (2) external noise. Analysis, development and testing in the Green Train programme have focused primarily on speeds up to 250 km/h, although the energy issues have also been studied at top speeds up to 320 km/h. The energy use is estimated for both long-distance trains with few stops and for fast regional services with relatively tight underway stops. These estimations result in an energy use of 46–62 Wh per passenger-km – or 30–40 Wh per seat-km – accounted as electricity taken from the public electric power grid. Improved aerodynamic performance, efficient space utilization, electric regenerative brakes, eco-driving advice and improved energy efficiency in the propulsion system make this possible. Trackside noise has also been analysed and tested in the programme. In order to maintain the same or lower noise level at 250 km/h as at lower speeds with current trains, a number of measures are proposed. These include bogie skirts, wheel absorbers and careful aerodynamic design of the front area and of all protruding objects. In sensitive residential areas, further improvement may be achieved with rail absorbers or low trackside screens.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2014. Vol. 2, no 1, 59-66 p.
Keyword [en]
energy, Green Train, high-speed train, noise, space efficiency
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-194770DOI: 10.1080/23248378.2013.878296Scopus ID: 2-s2.0-84977663059OAI: oai:DiVA.org:kth-194770DiVA: diva2:1046111
Note

QC 20161111

Available from: 2016-11-11 Created: 2016-10-31 Last updated: 2017-02-22Bibliographically approved

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Andersson, EvertCarlsson, U.Lukaszewicz, PiotrLeth, Siv
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