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London Transport (uk.transport.london) Discussion of all forms of transport in London. |
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Wanna be cool? Take the tube!
In New York City, the trains have ac and they dump the heat into the
tunnels which are well vented. Not only are the tunnels much bigger than the tube but they are also much shallower - so that the many gratings in the roadway can be used to vent hot air. I really know next to nothing about air-con systems, but I take it the moisture in the air is condensed somewhere and collected as water - am I about right? Why not, then, have a system of pipes on each train, and a big tank at the end to collect the water, which would be emptied out at various times during the day (whilst stopped at stations - surely they could implement such a system?). The heat, of course, is another issue. Peter |
#2
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Wanna be cool? Take the tube!
In article ,
AstraVanMan writes I really know next to nothing about air-con systems, but I take it the moisture in the air is condensed somewhere and collected as water - am I about right? Correct. Why not, then, have a system of pipes on each train, and a big tank at the end to collect the water, which would be emptied out at various times during the day (whilst stopped at stations - surely they could implement such a system?). Where would you site the dehumidifier? It's not the size of a matchbox for the amount of work required. Where would the pipes run between the carriages? You want to build in infrastructure to empty water tanks in platforms? Who's job would it be to empty the tanks? Myriad of problems fitting it to existing stock. I saw start with the stations - at least there would be a blast of cold air into the carriage at each stop and the technology is more or less off the shelf. Still doesn't get round the space problem I mentioned earlier. The heat, of course, is another issue. Sure is........ -- Andrew Electronic communications can be altered and therefore the integrity of this communication can not be guaranteed. Views expressed in this communication are those of the author and not associations or companies I am involved with. |
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