We were talking about this a week or two ago. Lawrence will be plugging in, but he is optimistic that this can be minimized. I think he is in the Bay area though, so clouds may be an issue.
On Mon, Mar 30, 2015 at 3:29 PM, Ben Goren via EV <[email protected]> wrote: > On Mar 30, 2015, at 12:19 PM, Cor van de Water via EV <[email protected]> > wrote: > > > It is simple: measure the surface area of the car and multiply by the > expected PV efficiency, > > then you know why a Solar Racer needs full sun overhead most of the day > *and* be an extreme car > > to achieve any speed or range. > > ...and it's worse than even that. The angle from the Sun to the panels > matters a great deal. A panel at right angles to the incoming light > receives the maximum amount of energy; a panel parallel to the light > receives zero energy. > > You don't have much choice about the angles the panels of a car make with > the light. Fixed panels, on the other hand, can either be statically > positioned for an optimum annual average production or, if money isn't an > object and space is at a premium, you can dynamically tilt the panels to > follow the Sun. > > For the car...well, ideal geometry for the panels is going to be a flat > top parallel to the ground, but that's a geometry bordering on the > pathological for aerodynamics. > > b& > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -- To invent, you need a good imagination and a pile of junk. Thomas A. Edison <http://www.brainyquote.com/quotes/quotes/t/thomasaed125362.html> A public-opinion poll is no substitute for thought. *Warren Buffet* Michael E. Ross (919) 585-6737 Land (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Google Phone (919) 631-1451 Cell [email protected] <[email protected]> -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20150330/b9aac28f/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
