Kingfish wrote:Luke, hence the reason for Litz wire? My understanding was that the eddies were iron core related/induced.
I must read more... KF
Toorbough ULL-Zeveigh wrote:Biff wrote:but is around 94% efficient (vs the 97% of the CSIRO)
that's a gulf as wide as the grand canyon.
Toorbough ULL-Zeveigh wrote:i'm surprised & confused by the use of alu, i would have bet anything an HA demanded CF.
why isn't it causing eddy interference & parasitic heating the way it did for Thud & luke4phys??
Arlo1 wrote:Kingfish. Luke and I discussed a liquid cooled winding meaning the winding is filled with a fluid that circulates and the windings are a small copper tube them selfs! Oh and Guess what conducts better the copper!
On another note Lukes not the only one who likes going fast
Arlo1 wrote:Kingfish. Luke and I discussed a liquid cooled winding meaning the winding is filled with a fluid that circulates and the windings are a small copper tube them selfs!
Kingfish wrote:Biff, thanks for the leads to these materials; there is much to consider. Do you have insights on the magnet bonding agents? I think we need to be sure that the cure-temps do not exceed the magnet ratings.
Biff wrote:The CSIRO motors that I have are actually not hallbach and have iron backing.
Kingfish wrote:Thanks Biff on the epoxies; we should check into thermal curing as I think that is the way of the industry.
Gosh Arlo, I would think 80 km/h (50 mph) is plenty fast for a bicycle and more-or-less my target for P1 as a 2WD Ã¢â‚¬â€œ and I think I can get there with an over-volted Plan-D 3-Rotor/2-Stator build. That 198 km/h (123 mph) mark is impressive though. We need to find the fastest e-cycle record, and then build a special motor just for burying it. But hey Ã¢â‚¬â€œ thatÃ¢â‚¬â„¢s a down the road a ways: We have lots of time to dream!
However - I would perish the thought of using Mercury for cooling. I donÃ¢â‚¬â„¢t even want to touch the stuff, let alone breathe it: Not practical for a lot of reasons.
If you are serious about liquid metal, IÃ¢â‚¬â„¢d review the Wikipedia topic. My suggestion is NaK because at least it wonÃ¢â‚¬â„¢t poison you. But then you wouldnÃ¢â‚¬â„¢t want to expose it to air or water either.
Might I suggest a very safe alternative is Mineral Oil: Dielectric, non-compressible, lubricating, and has nice thermal-bearing characteristics exceeding 200Â° C.
Or, maybe there is a biodegradable equivalent out there; wouldnÃ¢â‚¬â„¢t that be peachy! Stop for a burger and charge, top off with a little Canola and away you go.
What a wonderful spin of ideas; most fun!
Arlo1 wrote:And the Hyabusa toped out at 198 MPH (316km/h) for that year!
Kingfish wrote: Certainly there should be enough starting torque for Delta,
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