COMPARATIVE WIND INFLUENCE ON USE PHASE ENERGY CONSUMPTIONS OF ROADS AND RAILWAYS

3rd International Conference on Road and Rail Infrastructure (CETRA 2014)

View Publication Info
 
 
Field Value
 
Title COMPARATIVE WIND INFLUENCE ON USE PHASE ENERGY CONSUMPTIONS OF ROADS AND RAILWAYS
 
Creator Alex Coiret; Ifsttar LUNAM University, Ifsttar, dep. AME, research unit EASE, CS 4, 44344 Bouguenais, France
Pierre-Olivier Vandanjon; Ifsttar LUNAM University, Ifsttar, dep. AME, research unit EASE, CS 4, 44344 Bouguenais, France
Romain Bosquet; Ifsttar LUNAM University, Ifsttar, dep. AME, research unit EASE, CS 4, 44344 Bouguenais, France
Agnès Jullien; Ifsttar LUNAM University, Ifsttar, dep. AME, research unit EASE, CS 4, 44344 Bouguenais, France
 
Subject railway; roads; energy; use phase; wind
 
Description Sustainable development is largely depending on transportation systems ensuring mobility and safety. This mobility require a sufficient access to the energy, at an affordable price. According to the peak-oil hypothesis, rarefaction and increasing in price of the non-renewable energies are nevertheless expected.
Even if transportations systems could partly rely on renewable energies, their optimization should involve energy and mobility criteria. In this study, surrounding wind fields and traveling speed are conjointly investigated in order to evaluated achievable reductions in fuel consumptions for both railways and road transportation systems.
In the first part of this work, aerodynamic forces on trains are evaluated with the help of an energy model, validated with experimental tests data. For that, numerical determination of aerodynamic coefficients for several wind and topological situations have been computed with Solid-Works and associated to atmospheric characteristics determined over the considered high-speed line (Rhine-Rhone line ; about 140 km) with the AROME model (meteo-france), from measurements at several weather stations.

Simulation results show that for a weak wind and a train traveling at high speed, wind influence is about 5% on aerodynamic forces power. However, for a moderate train speed (about 45 m/s), a slightly stronger wind (about 5 m/s) has an influence of about 30%, compared to the without wind case.

In a second time, road experiments have been conducted with a passenger car equipped with an air flow meter and an oil flow meter, in addition of dynamical measurements as speed, position, altitude... Similarly to the railway case, wind exposition could be considered as a significant road design parameter.

In conclusion, this work based on large sets of full-scale experimental data and the numerical simulation of the aerodynamic forces, points out that wind influence on total aerodynamic power consumption is noticeable, both for railways or road transportation systems.
 
Publisher CETRA 2014
 
Contributor Ifsttar ; Réseau Ferré de France
 
Date 2017-02-28 16:45:29
 
Type Peer-reviewed Paper
 
Identifier http://master.grad.hr/cetra/ocs/index.php/cetra3/cetra2014/paper/view/406
 
Source CETRA 2014; 3rd International Conference on Road and Rail Infrastructure
 
Language en
 
Relation http://master.grad.hr/cetra/ocs/index.php/cetra3/cetra2014/paper/download/406/626
http://master.grad.hr/cetra/ocs/index.php/cetra3/cetra2014/paper/download/406/633
 
Rights <p>Authors who submit to this conference agree to the following terms:<br /> <strong>a)</strong> Authors retain copyright over their work, while allowing the conference to place this unpublished work under a <a href="http://creativecommons.org/licenses/by/3.0/">Creative Commons Attribution License</a>, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. <br /> <strong>b)</strong> Submitted full papers will be published in the book of proceedings "Road and Rail Infrastructure II" as well as in digital form (on a CD). Conference organiser is allowed to publish author's names, institution and country as well as the paper abstract on the conference web site.</p>
 

Contact Us

The PKP Index is an initiative of the Public Knowledge Project.

For PKP Publishing Services please use the PKP|PS contact form.

For support with PKP software we encourage users to consult our wiki for documentation and search our support forums.

For any other correspondence feel free to contact us using the PKP contact form.

Find Us

Twitter

Copyright © 2015-2018 Simon Fraser University Library