Quote:
Originally Posted by Logic
Found this post
where a guy's talking about 8000 W from a normal alternator, when accelerating, with a ctlr and extra batteries. (100vdc)
Old post and the guy seems to have faded away. Site's dead etc.
I know newer cars have one way bearings on the alternator to use any rotational momentum it might have.
That wont work with this.
Then there's the 100 volts thing.
I'm guessing its a small pack if its only for acceleration but lithium isn't cheap or weightless.
Thoughts?
https://www.diyelectriccar.com/threa...s-motor.80547/
https://youtu.be/7iM6Oa8uh0k |
1) At a nominal 12-VDC your at around 80-Amps.
2) Pushing the field up to create 100- VDC respects the 80-Amp barrier.
3) Which opens a question about the field 'conductor' capability.
4) At 90% efficiency, the alternator is handling 1,067-Watts of shaft energy ( 1.43-hp ).
5) Extracting 8,000-Watts ( 10.72-hp ) at the shaft would require 8,888-Watts (11.9-hp) of input energy from the belt.
6) 9,070-Watts ( 12.25-hp ) from the engine-to-belt.
7) Definitely a cog-belt system as freebeard has mentioned.
8) Clearance to the radiator/ shroud / radiator bulkhead would now be an issue.
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Personally, I'd be looking for a way to shave '12 1/4 hp' from mass, rolling- resistance, and aero.