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Coach insulation |
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evaluated |
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Thermal insulation of coaches contributes to overall energy efficiency of passenger stock. Many measures can be carried out not only in new stock but also as a retrofit.
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Technology field: Optimisation of comfort functions
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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 - 5% |
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Energy efficiency potential throughout fleet: 1 - 2% |
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General figures on efficiency potential of coach insulation measures are not available. However, given that 20 % of the total energy consumption of a passenger train is needed for comfort functions (mainly heating and cooling) and roughly one third of this value is accounted for by transmission losses, the energy transmitted through the outer shell of the coach will be about 5-10% of the total energy demand. Given the fact that k-values can be improved by some 20 - 40%, it therefore seems reasonable to assume a saving potential of 1 - 4 %. |
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Other environmental impacts: neutral |
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The materials used need to be assessed from an LCA point of view. |
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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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