The soaring temperatures on the London Tube over the summer months have been a problem for some years now. A London Underground team has attempted to come up with some engineering solutions to the problem by creating a groundwater cooling
system. The trial, which starts this summer, aims to make it cooler for passengers on platforms and will be tested at Victoria station which is so deep that it is effectively under water and pumps out 35 litres (eight gallons) a second, to stop it coming through the walls. The idea of the new system is to push the water through a network of pipes into heat exchange units on the platforms, which will suck in warm air and pump out cooler air. The heat could be used to power homes and offices above and this way the temperature will be brought down.
But this is only a trial to be tested this year and it is far from being put into work as well as new trains with air cooling systems that are promised for Circle, District, Hammersmith and City and Metropolitan lines.
Meanwhile the temperatures in the deepest tunnels, reach 30C (86F) in summer.
These changes might affect the London Tube in a drastic way. Some of the Tube...
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