Re: [EVDL] Railroad solar? (was: Light-weight 100W PV roof panel for 48V e-carts...)

[David Wilker via EV]

I saw a video once about them. They use they generators to slow the train
down coming down mountains. They then use the electricity to heat
conductors, thus wasting it.



If we cannot afford to take care of Veterans, then we should stop making
them.
David C. Wilker Jr.
USAF (RET)

On Wed, Sep 23, 2015 at 11:22 AM, Tom Mandera via EV 
wrote:

> And they are already electric vehicles - just supplied by diesel
> generators.
>
> On Sep 22, 2015 4:33 PM, Bill Dube via EV  wrote:
> >
> > Interesting point. Also, the cars "draft" one another so the air
> > resistance is quite low as well.
> > It takes only ~0.6 HP to move per ton to propel a train 50 mph. About 5%
> > of the energy that it takes to move a truck or a car at the same speed.
> > http://www.brooklynrail.net/science_of_railway_locomotion.html
> >
> > Bill
> ___
> UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
> http://lists.evdl.org/listinfo.cgi/ev-evdl.org
> Read EVAngel's EV News at http://evdl.org/evln/
> Please discuss EV drag racing at NEDRA (
> http://groups.yahoo.com/group/NEDRA)
>
>
-- next part --
An HTML attachment was scrubbed...
URL: 

___
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Read EVAngel's EV News at http://evdl.org/evln/
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)

Re: [EVDL] Railroad solar? (was: Light-weight 100W PV roof panel for 48V e-carts...)

[Tom Mandera via EV]

And they are already electric vehicles - just supplied by diesel generators.

On Sep 22, 2015 4:33 PM, Bill Dube via EV  wrote:
>
> Interesting point. Also, the cars "draft" one another so the air
> resistance is quite low as well.
> It takes only ~0.6 HP to move per ton to propel a train 50 mph. About 5%
> of the energy that it takes to move a truck or a car at the same speed.
> http://www.brooklynrail.net/science_of_railway_locomotion.html
>
> Bill
___
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Read EVAngel's EV News at http://evdl.org/evln/
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)

[EVDL] Railroad solar? (was: Light-weight 100W PV roof panel for 48V e-carts...)

[Bill Dube via EV]

Interesting point. Also, the cars "draft" one another so the air 
resistance is quite low as well.
It takes only ~0.6 HP to move per ton to propel a train 50 mph. About 5% 
of the energy that it takes to move a truck or a car at the same speed.

http://www.brooklynrail.net/science_of_railway_locomotion.html

Bill D.

I agree for normal cars. But I have to wonder... what about railroad 
cars? Their rolling resistance is vastly lower, they have a huge roof 
area, and almost always sit in the sun. Could one make a commuter 
train or freight train with PV panels on the roof of every car. Would 
they collect enough power to be useful?




___
UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub
http://lists.evdl.org/listinfo.cgi/ev-evdl.org
Read EVAngel's EV News at http://evdl.org/evln/
Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)