Re: BruceDP's Blazer goes hybrid

[Ron Schroeder <rjs@bnl.gov>]

At 12:18 PM 5/30/00 -0700, you wrote:
>Ron Schroeder wrote:
>> Does anybody have curves or efficency specs for ANY alternator?
>
>Only indirectly. I have old data sheets for several Delco alternators.
>They list dozens of model numbers, sizes, weights, volts and amps vs.
>rpm, etc. Nothing specifically on efficiency, i.e. they never give
>torque or HP needed to produce a given output.
>
>Therefore, I set up a crude dynamometer. An alternator and electric
>motor were connected with pulleys and a v-belt. I measured power in and
>power out and had performance curves for the motor, and so could
>calculate alternator (and v-belt) efficiencies. It was a crude setup and
>only one unit was tested, but it was pretty clear that a 12v 60amp
>Delcotron alternator was only about 60% efficient at full load.
>-- 
>Lee A. Hart                     Ring the bells that still can ring
>4209 France Ave. N.             Forget your perfect offering
>Robbinsdale, MN 55422 USA       There is a crack in everything
>(612) 533-3226                  That's how the light gets in
><leeahart@earthlink.net>                Leonard Cohen

Thank you Lee.

It looks like a DC motor would be a better generator than an alternator
would for efficency.  Does ADC make shunt wound motors?  Do they have a web
site?  Do any other manufacturers make EV shunt wound motors that are
affordable?  

Ron
(between EVs)
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Ron Schroeder
WD8CDH
E. E. S.
wd8cdh@bnl.gov
rjs@bnl.gov
ron@112motors.com
631 344-4561 Day
631 286-5677 Nite
*note change of area code to 631 from 516