dancefloorlandmine: (London)
dancefloorlandmine ([personal profile] dancefloorlandmine) wrote2017-06-19 05:07 pm
Entry tags:

Cooling the tube?

An interesting article about temperatures in the tube tunnels, and approaches to reduce them.

www.ianvisits.co.uk/blog/2017/06/10/cooling-the-tube-engineering-heat-out-of-the-underground/.

One interesting note is that the tube tunnels used to be a lot cooler, but the clay around them, a highly effective insulator, has, over the years, pretty much reached its thermal capacity.