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Ventilation control (retrofit) |
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evaluated |
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| 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.
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Technology field: Optimisation of traction technologies
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General information
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General criteria
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Environmental criteria
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Economic criteria
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Vehicle - fix costs: low |
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At SBB the standstill time for rtetrofitting measures is one labour day per locomotive, including the final functional inspection. SBB gives a total cost for retrofit (including development, planning and installation) of approx. 6000 CHF (~ 4100 Euro). |
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Vehicle - running costs: significant reduction |
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Besides significant reductions in energy costs, maintenance costs are reduced due to less wear on bearings and motor commutators. |
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Infrastructure - fix costs: none |
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(no details available) |
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Infrastructure - running costs: unchanged |
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(no details available) |
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Scale effects: low |
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(no details available) |
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Amortisation: < 1 year |
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Both SBB and ÖBB claim a payback time for the retrofit of less than one year in most cases.
For the case of the Re 6/6 and an energy price of 0,15 CHF/kWh (~ 10 Ct./kWh), SBB gives an amortisation of 4 months. Even for lower energy costs, maximum amortisation is around one year. Therefore the measure is interesting for old locomotives with short residual lifes as well. |
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Application outside railway sector (this technology is railway specific)
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Overall rating
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 date created: 2002-10-09 |
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| © UIC - International Union of Railways 2003 |
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