Fueless Friction Heater Manufacturer Found

[helmut]

Thanks Bill and Gary.

I'm still waiting on the letter from my machinest...between the 2 of us we've been stricken with a local stomach virus...so nothing to report there.

I am unsure the drum can reach speed in under 30 secs...and I don't have oil in it yet...not sure how it will effect rotation.

Will the buoyancy of the drum counter the viscosity drag...I do not know.

Hopefully someone here will have some helpful suggestions.

Regards...

Hello   Cap-Z-ro

If i was on your place, i would try as follows.

Last year i buyed a new power grinder.
You know, this dangerous tools that work with about 12 to 18tousend RPM.
The old one was about 2000 watt and sometimes the fuse was cut the line during the start.
But the new one workes different.There was a new circuit build in, that startet the grinder
realy slowly to the maximum speed.
So the idea is : Buy one of this grinders and extract the small board
for the smooth start, to employ it with the heater motor .

I hope,that my idea is of use for you.
Keep us informed and recover soon from the stomach virus.

helmut

[resonanceman]

Thanks Bill and Gary.

I'm still waiting on the letter from my machinest...between the 2 of us we've been stricken with a local stomach virus...so nothing to report there.

I am unsure the drum can reach speed in under 30 secs...and I don't have oil in it yet...not sure how it will effect rotation.

Will the buoyancy of the drum counter the viscosity drag...I do not know.

Hopefully someone here will have some helpful suggestions.

Regards...

Cap-Z-ro

Lets see .....it spins freely  but  a 1 HP motor  won't  spin  it up to speed in under 30 seconds ?( with out oil in it ) 

How  big is this  thing?


gary

Edit

A  soft start  might help but  if it isn't  getting up to speed in 30 seconds  without oil  I  question if it will even  be able  to reach  working  speed  with  oil .

[Cap-Z-ro]

That circuit sounds like exactly what I need Helmut...is there somev place where I can buy the board without buying another motor ?

Not sure what a 'soft start' is Gary...it sounds like it might work also.

The drum spins easily once started, so I have no doubt it will reach speed.

Thanks all.

Regards...

[resonanceman]

That circuit sounds like exactly what I need Helmut...is there somev place where I can buy the board without buying another motor ?

Not sure what a 'soft start' is Gary...it sounds like it might work also.

The drum spins easily once started, so I have no doubt it will reach speed.

Thanks all.

Regards...

Capt Z

A soft start  is  when   the  motor  speed is ramped  up  over a period  of time.   It is  a common feature in  motor  speed  controllers.

Here  is a link  for   some industrial  units .

http://www.driveswarehouse.com/Drives/AC+Drives/Micro+VFD.htm


If  you  want to make your own  look up  PWM    ( pulse width modulation )

Or  maybe  a PMW  for  a HHO  generator   could be modified


gary

[Cap-Z-ro]

Those inverter drives are a little hazardous to use Gary...what is 'pulse with modulation' ?

It sounds much less complicated.

Regards...