3 ms·

why not incorporate storage in the car and discharge it when launching from a stop. I am sure there has to be a little onboard storage but it appears they need

why not incorporate storage in the car and discharge it when launching from a stop. I am sure there has to be a little onboard storage but it appears they need more if they cannot discharge it. Isn't this ideal for ultra capacitors? it really reads like the cars must be changed to fix the problem as they are the heat source. so unless an economical means can be found to store/discharge it between stations their only solution is to cool the tube itself. So isolate the passenger area from the tube area at all stations and force cool air from points where you have easy access to cooling. the air flow would of course move in the direction of trains. can that work?

Symbiote 9y ago
Adding stuff to trains ("cars"?) increases the weight, which means more energy is needed to move the thing. It also takes up space, which is very limited. Some storage system near a station (where there is more ventilation) could make sense, but probably costs more than the system mentioned in the IanVisits blog to return power to the city (i.e. convert the DC the trains use back to AC for the city). I don't think the isolation idea would work. Where does the air for people on trains to breath come from?