Does airgap only increase/decrease amps,...or also volts?
Does adding a second rotor increase amps and volts?
How much more power does the second rotor add?
Thx
Rob
I dont need logartyhmic quantum nasa answers...
Ok for you anal retentives,...
rotor size = your ego rpm = the speed of your arrogance.
at present you generate 10 volts 1 amp
so now we double your ego (2nd rotor identical to first)
rpm same, atmospheric pressure...same, rotation of the sun the same..etc..
do we still get 10 volts? and 1 amp...?
and for the over complicated minds and arrogant ones:
a: volts will go up
b: volts AND amps go up
c: I'm not a braniac,.....i dont know.
Please answer a,b,c,
AS far as rotor gap
Closing rotor gap will:
a: Increase volts
b: Increase amps
c: increase both
d: i dont know
thx
Rob[ Parent ]
KurtIRC inst. just a personal rant carry on. [ Parent ]
The rest you can figure out for yourself with simple logic. Wim
Flux density is related to: Specific characteristics of the magnet. inverse relationship to the air gap length. leakage flux. (Majority of which is related to the specific shape of the magnet.)
Alternator design is driven by cost.
Someone has said that round magnets are the most effective, but much of that depends on the p.u. cost of the magnet, not the shape.[ Parent ]
It directly affects volts.
"Does adding a second rotor increase amps and volts?"
If you do it the logical way it increases volts.
"How much more power does the second rotor add?"
Who knows? it typically would double the volts.
That is about all there is to say without going deeper into things, which you don't seem to want to do.
What happens to current and power is more complex and that is what the others were trying to point out.
If you don't want to delve deeper then for a given winding resistance the current will follow the difference in volts from generated emf to battery volts divided by circuit resistance. There are other factors such as changes in cut in speed that likely will make nonsense of this.
Most likely if you sort the anomalies to your advantage the dual rotor will give about 4 times the power of a single rotor, but not on direct swapping.
Flux
Reason i asked cause i half assembled my gen.
( its in the previous postings where u said it will be high voltage)
with 12 2x2 mags i turned it by hand (60rpm?) and I got 2 volts from one phase with each coil wired paralell, it seemed low so i rewired in series.... i was curious what i would get when i added the second rotor
so ill move the air gap around to see what i get...
Again,..Thx for the quick n dirty answer..
On answer B. above, You said nothing about rpm, or windings, or thickness of wire, etc. . .
If you bring a strong magnet close to an object that it wants to stick to, doesn't the "pull" get exponentially stronger the closer it gets. . .Stands to reason that if everything else were the same, it would be stronger with the magnets closer together, meaning more amps. And possibly more volts, depending on the loading.
If you have more available amps, the voltage will hold higher for the same RPM.
So to answer your question, just try it and see what happens. . . good way to learn if you already have everything made. . .
Have fun, too!
Doug
