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   Improved operation control for air-conditioning  evaluated  
In order to keep the air-conditioning system from over-reacting to short-term variations in outside climatic conditions (e.g. when train enters a tunnel), an intelligent control device can ensure a smoothened operation.
Technology field: Optimisation of comfort functions
close main section General information
  open sub-section Description
close main section General criteria
  open sub-section Status of development: in use
  Time horizon for broad application: 2 - 5 years
  Expected technological development: basically exploited
  Benefits (other than environmental): medium
  Barriers: low
  Applicability for railway segments: medium
    Type of traction:  electric - DC, electric - AC, diesel
    Type of transportation:  passenger - main lines, passenger - high speed, passenger - regional lines, passenger - suburban lines
    Grade of diffusion into railway markets:
  Diffusion into relevant segment of fleet: < 5%
  Share of newly purchased stock: (no data)
  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: (no data)
  Vehicle - running costs: minor reduction
  Infrastructure - fix costs: none
  Infrastructure - running costs: unchanged
  Scale effects: low
  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: short-term
References / Links:
Attachments:
Related projects:  Energy Management System of New Coaches
Contact persons:
 date created: 2002-10-09
 
 
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