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Aerodynamic optimisation of pantographs |
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evaluated |
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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.
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Technology field: Aerodynamics and friction
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General information
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General criteria
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Environmental criteria
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Impacts on energy efficiency:
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Energy efficiency potential for single vehicle: < 2% |
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Energy efficiency potential throughout fleet: < 1% |
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There is no experimental data available on air drag effects of aerodynamic pantograph design.
Given that pantographs come up for ~8% of air resistance, and assuming that in high-speed traffic some 60% of total energy demand (including comfort energy) are owed to air drag, the pantograph will account for about 5% of total energy consumption. It seems therefore realistic to assume that the corresponding optimisation potential is less than 2%. |
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Other environmental impacts: neutral |
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Noise reduction |
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Economic criteria
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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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