"Dave Arquati" wrote in message
...

* Tube air-cooled trains project, which has been mentioned before but
for which I don't have any details (would anyone be able to point me at
any?)


there was an option in the SSL PPP Contract for air conditioned trains
on the SSL network. That option has been exercised. The balance of the
"air cooled" work relates to trials with additional water pipes to cool
deep tube tunnels - as suggested via the LU / Mayor "gives us your
bright ideas" initiative. No idea what lines it will be trialled on.

Found the relevant info online after a little digging - South Bank Uni
are working with LU to introduce a trial at Victoria's Victoria line
platforms where 200 l/s water from the River Tyburn (apparently) is
pumped through a space between the two platforms, and fans draw hot air
from the platforms across the cold water, with an air temperature
reduction of about 5°C. The warmed water will be sent off to the Thames
(presumably by the time it gets there, it will have cooled down).

If anyone's interested, the journal papers (published before the specific
plan to use Victoria station as a trial was announced) are online at:

http://dx.doi.org/10.1016/j.applthermaleng.2003.10.017
http://dx.doi.org/10.1016/j.applthermaleng.2003.10.018
http://dx.doi.org/10.1016/j.applthermaleng.2003.10.019

Angus