Hi Stuart and All,
--- [EMAIL PROTECTED] wrote:
> Do you know of any work to develop a portable
> biodiesel capable of
> recharging an electric vehicle?
You will have 2 problems, first is weight.
Finding a small light diesel engine is the 1st step. I
suggest a Duetz( 4.5 hp) or a small Petter( 6 and 12
hp) depending on space availible, power needed.
Your other problem is how to make DC to charge
the batts eff.
Using a 120 vac charger single phase
because of power factor you get large current spikes
that limit the power you can get out of it to 1/2 the
gen ratings and many times burns the gen up even
then.
A couple of good ways around it would be using
a permenant magnet motor as a dc genorator, 85- 95%
eff, . This works as a starter too.
Next would be a shunt dc gen also making dc
direct, 80 to 90% eff.
Another way is to use a 3 phase ac genorator and
use an H-bridge diode setup to make DC, 80 to 90% eff.
These can be bought new with diesels driving
them ready for the H-bridge rectifiers, about $1.5k to
4K.
A little more info on your EV, like battery pack,
weight,voltage, motor, vehicle model, how fast you
want to charge( with lead acid batts you can charge
60% in 15 minutes if you want to spend the cash), will
it be onboard, will you run it while driving, ect?
I'm using a car alt, 65% eff, cheap, for mine but
its voltage is low, 36 to 72VDC batt pack. A larger
one from a truck( 75% eff, could be setup to work eff
at higher volts eff. They are 3 phase ac gens with
H-bridges.
jerry dycus
>
> Let's talk.
>
> Stuart
>
>
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