The Train Break Turbine

Here's a quick energy generating idea. As well as all the usual green ways of energy production, why not tap into the wasted energy of breaks on a train.

You'd still keep the breaking mechanism on a train as a safety measure for the driver (and also for slowing near bends), but primarily breaking entering a station can be done by 'break turbines'. These are just a number of large turbine wheels built under the sections of track approaching the station, which will connect with long strips of break pad under each carriage. The break turbines will be adjustable from the signal box, so that they're only there if a train needs to stop. The turbines can be lowered so that they don't affect through-trains not intended to stop at the station.

For trains that should stop, the whole thing will be automated. There will be sensors on the track that register the speed of a train's approach to the station. The computer then knows how much pressure the turbine breaks need to initially exert on the train. This pressure is then gradually released until the train comes to a smooth stop at the platform.

Every time a train pulls into a station, a turbine will be turned which will generate electricity. Imagine the amount of power generated if every railway and tube station had these turbines spinning every time a train approached a platform. Enough to power the trains? Probably not, but I imagine there'd be a lot more force there than in wind or tidal power.

Naturally it would take much time and expense to convert both stations and trains to this method of breaking and energy production. But once all up and running, I should think they'd easily pay for themselves within a year.

Also, it would be easier to include this genius idea within the designs of new trains and train lines, rather than retrofitting it to existing ones.

I really like the proposed idea of the almost-frictionless vacuum tube train system* that they're gonna build in the USA or Japan**. I hereby give them permission to use my train break turbine generator idea as part of it's design. Just let me know if you've any questions guys.


* AKA The vactrain. A genius idea that's so crazy, it's like the sort of shit that I'd make up.
** I figure one of these 2 countries is bound to do it first.