Hybrid Car – More Fun with Less Gas

still looking to buy elec car- with these features - Page 4

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Posted by Jim Wilkins on August 13, 2009, 4:34 pm
 
On Aug 9, 11:04pm, cl...@snyder.on.ca wrote:

There is a tremendous, perhaps 100:1 cost difference between a one-off
home project vehicle made from cheap surplus parts and one that is
designed for production and to meet specs and regulations.

jsw, who does both.

Posted by Eeyore on August 13, 2009, 3:23 pm
 


cjt wrote:


You mean the ultra-light types that can only carry one person in desert-like
locations?



That's a completely different matter but if the panels are at home, how can they
charge the car at the same time ? So you'd need batteries to store energy  (
which require periodic expensive replacement ) and an inverter to charge another
battery in the vehicle.



The efficiency of solar panels IS determined by physics. As a result, huge leaps
in efficiency are never going to be viable.

Trust me, it will NEVER happen. In the meantime the 40% efficient diesel engine
for automotive use is on the horizon. Ships' diesels get significantly better
efficiencies too.

Graham


--
due to the hugely increased level of spam please make the obvious adjustment to
my email address



Posted by harry on August 13, 2009, 6:32 pm
 wrote:

Not quite true. A solar powered car was driven across Australia a few
years back.  And someone has built a solar powered aircraft.  Not very
prctical vehicals though.  I suppose they'd work well if you lived in
Death Valley.
I believe the US military is working on a drone aircraft that never
needs to land (solar power & batteries)

Posted by Michael B on August 15, 2009, 2:40 pm
 


Ummm, not quite. They are indeed working on a solar-assisted
version to extend range, but I doubt that anyone wants to try to
load it with enough batteries to keep it flying till the next day.
They are also working on being able to land it easier with onboard
sensors and listening devices, and batteries could help it resume
flight with minimal noise.

Posted by Jim Wilkins on August 15, 2009, 4:42 pm
 


Unclassified previous work:
http://en.wikipedia.org/wiki/NASA_Pathfinder

jsw

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