[underground] Cooling the Tube … interesting look at the issues surrounding cooling the train carriages and stations on the London Underground … ‘When an underground train tunnel is first constructed, it’s at the native soil temperature of around 14°C. Temperature problems start to show up 20–30 years later; this timescale has been seen over and over again in different lines/metro systems throughout the world. Basically the tunnel is a closed environment with a lot of energy sources. The soil around the tunnel gradually dries out and becomes a much better insulator — they’ve measured this on the Victoria line and found that the soil is dried out for several metres’ distance from the tunnel.’

Cooling the London Underground

This entry was posted on Sunday, March 16th, 2008 at 7:43 pm and is filed under London, London Underground.

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