electric motor efficiency
electric motor efficiency
(OP)
A question on improving the efficiency of electric motors, either dc or ac motors.
While visiting a university last year, I was shown that flowing ferrite particles in a tube through an inductor changes it's inductance. Most people realize that varying the magnetic core internal to any inductor/toroid will change it's electrical properties, so maybe it's an obvious result.
My question is; could an electric motor efficiency be tweaked/optimized by flowing ferrite particles around it's windings via a plastic tube? Is this physically possible with most motors?
I realize batteries are important to make electric motor cars viable. I'm curious if the efficiency of electric motors used in these electric cars is poor and is there room for improved efficiency?
Thanks,
kch
While visiting a university last year, I was shown that flowing ferrite particles in a tube through an inductor changes it's inductance. Most people realize that varying the magnetic core internal to any inductor/toroid will change it's electrical properties, so maybe it's an obvious result.
My question is; could an electric motor efficiency be tweaked/optimized by flowing ferrite particles around it's windings via a plastic tube? Is this physically possible with most motors?
I realize batteries are important to make electric motor cars viable. I'm curious if the efficiency of electric motors used in these electric cars is poor and is there room for improved efficiency?
Thanks,
kch






RE: electric motor efficiency
If you could build a superconducting motor, then you'd have something. But you are starting with something that already has an efficiency of 85-90% or better, so any improvements will be incremental.
RE: electric motor efficiency
I wondered what the efficiency was in the typical motors.
kch
RE: electric motor efficiency
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: electric motor efficiency
Coworkers of mine are developing a 3 wheel high speed electric car and I now realize I don't need to bother them with improving electric engine efficiencies. Unless I make a very high temp superconducting wire of course.
Thanks,
kch
RE: electric motor efficiency
Keith Cress
kcress - http://www.flaminsystems.com
RE: electric motor efficiency
An engine whose purpose is to produce kinetic energy output from a fuel source is called a prime mover;
alternatively, a motor is a device which produces kinetic energy from a preprocessed "fuel" (such as electricity, a flow of hydraulic fluid or compressed air).
thanks,
kch
RE: electric motor efficiency
I sometimes use the word "motor" when I mean "the engine" in a car. A split second later, I am corrected by every automotive guy that happens to be within hearing distance. Even those at nearby tables.
It is only fair that we electric guys are equally touchy.
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: electric motor efficiency
This electric guy's a lil bit touchy too.
RE: electric motor efficiency