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   Aerodynamic optimisation of pantographs  evaluated  
Pantographs account for some 8 % of the aerodynamic drag of a train and play an important role for noise emission. Pantograph optimisation is usually focussed on noise reduction rather than air drag.
Technology field: Aerodynamics and friction
close main section General information
  open sub-section Description
close main section General criteria
  open sub-section Status of development: prototype
  Time horizon for broad application: 5 - 10 years
  Expected technological development: dynamic
  Benefits (other than environmental): medium
  Barriers: low
  Applicability for railway segments: high
    Type of traction:  electric - DC, electric - AC
    Type of transportation:  passenger - main lines, passenger - high speed
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: 0 %
  Share of newly purchased stock: 0 %
  Market potential (railways): medium
close main section Environmental criteria
  open sub-section Impacts on energy efficiency:
  Energy efficiency potential for single vehicle: < 2%
  Energy efficiency potential throughout fleet: < 1%
  Other environmental impacts: neutral
close main section Economic criteria
  open sub-section Vehicle - fix costs: low
  Vehicle - running costs: minor reduction
  Infrastructure - fix costs: none
  Infrastructure - running costs: unchanged
  Scale effects: not applicable
  Amortisation: (no data)
no data available Application outside railway sector (this technology is railway specific)
close main section Overall rating
  open sub-section Overall potential: interesting
  Time horizon: mid-term
References / Links:  Schulte-Werning et al. 1998;  Baldauf et al. 2001
Attachments:
Related projects:
Contact persons:
 date created: 2002-10-09
 
 
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