Technologies        
  Hauptmenu
 
    Introduction
    Database
    -  Technologies
  -  Projects
    Calendar
    Discussions
    Contact & Links
    Imprint & Disclaimer
    Sitemap
 
 
     
 
Content
 
back to list go back to technology list      previous previous technology  next technology  next

   Ventilation control (retrofit)  evaluated  
Traction equipment is cooled by ventilation to prevent over-heating. The energy needed for ventilation can be substantially reduced by demand-controlled operation, i.e. by controlling ventilation power according to actual cooling demand of the motor (or other traction equipment). The technology can be integrated in old stock as a refitting measure in some cases.
Technology field: Optimisation of traction technologies
open main section General information
close main section General criteria
  close sub-section Status of development: in use
    At SBB and ÖBB retrofit programs have been realised successfully.
  Time horizon for broad application: in < 2 years
    (no details available)
  Expected technological development: basically exploited
    Devices for retrofit are a mature technology.
    Motivation:
   
  • Energy savings
  • Noise reduction of starting locomotives in stations
  Benefits (other than environmental): medium
   

Noise reduction

When leaving a station, coolers make a high contribution to train noise.

This can be substantially reduced by demand-controlled operation.

Wear

Less wear on bearings and collectors of ventilation motors and less dirt contamination of ventilation system.
  Barriers: medium
   

Psychological

Energy needed for auxiliaries is often seen as negligible and not worth optimising.
    Success factors:
   
  • Make detailed assessment of the number of locomotives eligible for this measure along with a cost/benefit analysis.
  • Measure should ideally be integrated into general retrofit measures to minimise standstill time of locomotives.
  • ÖBB offers other railway operators support to find individual retrofit solutions for existing stock and install a pilot device.
  Applicability for railway segments: low
    Type of traction:  electric - DC, electric - AC
    Type of transportation:  passenger - main lines, passenger - regional lines, passenger - suburban lines, freight
    In general, demand operation of motor ventilation is especially effective for stock used in services with a high degree of low-load operation, where full ventilation is not needed. For example, effect of demand operated ventilation is rather small in high speed traffic and very high for freight trains operating frequently at partial load (e.g. in mountainous regions). Furthermore, retrofit only makes sense for stock with sufficient residual life to pay back measure. ÖBB claims that control device is applicable to a variety of locomotives fitted with two-speed ventilation in Austria and in other countries.
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: < 5%
  Share of newly purchased stock: not applicable
   

Retrofit measure!

SBB plans to retrofit all 273 locomotives of type Re 4/4 II and all 21 locomotives of type Re 4/4 III by 2008/09. ÖBB plans to retrofit locomotive series 1142 and 1044.
  Market potential (railways): low
    (no details available)
    Example:
    (no details available)
open main section Environmental criteria
open main section Economic criteria
no data available Application outside railway sector (this technology is railway specific)
open main section Overall rating
References / Links:  Bänziger et al. 1995;  Mouginstein, Pokrovskij 2000;  Slattenschek 1997;  Slattenschek 2000
Attachments:
Related projects:  Optimised Ventilation Control Re 4/4 II, Re 4/4 III
Contact persons:
 date created: 2002-10-09
 
 
© UIC - International Union of Railways 2003
 
Aktionmenu
 
 Your contribution
   add technology
 Views of this page
   show overview
   show evaluation
   show details
 Print options
   print data sheet
   print screen
 Help
   Evaluation briefing
   Technology list
    French - German