by David Benton
west point wrote: ↑Sun Jul 18, 2021 12:13 am Someone please explain where all the Li will come from? Li Battery technology is still in its infancy. Burned up airplanes, B-787s re placing whole battery system including fire protection, ford cars, Teslas, computers, cell phones etc. Then there is fire protection. When they burn they produce their own oxygen. Don't use water on battery fire, Tell that to Podunk volunteer fire department.Battery management systems take care of all that. The larger batteries are basically smaller cells in series / parallel each smaller cell having its own BMS.
I cannot imagine a battery fire in the present old Hudson tunnel bores that do not have emergency cross connection evacuation passageways. Or for that matter the 4 East river tunnel bores. At least the new Gateway bores will have cross connectors.
Then we have a loco that will have over a 3000 HP 3600 amps at 750 volts and 4600 amps at 600 volts equivalent draw. Oh and on top of that HEP and battery charging current at what (?)1000 amps. Third rail shoes will burn out especially when gaping or worse start a fire. Can any DC substation even handle that kind of draw ? It will be interesting to have someone supply short term current ratings of third rail shoes ?
Another thought is at what rate will batteries need to recharge to maintain running over a route ? 1000 amps does not appear to be enough ? An 8 or 10 car train is going to eat up alot of battery power in a hurry. possibly overheating Li battery and fire.
EDIT ; What type operation did NYC use with its battery electric locos ?