Home |
Search |
Today's Posts |
|
London Transport (uk.transport.london) Discussion of all forms of transport in London. |
|
LinkBack | Thread Tools | Display Modes |
#27
|
|||
|
|||
Thameslink NGEMU procurement - now in motion
On Apr 10, 12:01*pm, "Paul Scott"
wrote: EE507 wrote: On Apr 10, 11:14 am, D7666 wrote: On Apr 10, 10:34 am, "Paul Scott" Did anyone else spot "Some level of onboard energy storage may provide an optimal solution overall"? If you are only running on core routes, surely there will almost always be other trains in the same section to use the regenerated energy? *North of the Thames, energy could be exported to the grid anyway, and inverting substations could be considered for the SR routes. Energy storage is surely needed only for extremities of the network where traffic is light - Seaford, Arun Valley, etc. *I can't see it being a problem in the metro area or Brighton main line. That is exactly what the spec says immediately before your quote surely? Yes, but people such as yourself are suggesting that the trains will not now be running to the more remote outposts of the network. There will always be enough trains on the Brighton main line and inner suburban routes to use the regenerated energy - at least that's my understanding. Perhaps Mr. Lawford knows otherwise? BTW - The South London RUS now suggests that the Arun Valley or Seaford won't see Thameslink trains, unless they'll run further off-peak of course... Or is it just in case units have to limp out of sections which have suffered a loss of traction supply..? Well that is one of the reliability requirements - as I pointed out a couple of posts ago - so some form of onboard energy storage is essential. My view is that dragging around supercapacitors, batteries or even flywheels to cater for extremely infrequent events is counter to the general objective of keeping weight as low as possible. The marginal benefit does not exceed the cost IMHO. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Exciting news on Thameslink 2000 (now "Thameslink Project") | London Transport | |||
Concorde! on BBC2 now | London Transport | |||
Help!!!! What happens now! Buying ticket from ticket tout | London Transport | |||
Help!!!! What happens now! Buying ticket from ticket tout | London Transport | |||
East London Extension now has its own website | London Transport |