Quote from: Dondeal on June 24, 2011, 01:32:51 PM
More than 200 views and no one has posted anything positive or negative? Kind of rare for an overunity forum. I take it no one can find any immediate faults with the "idea" and it's probably something they have to test themselves.

Anyhow, I'm seeking feedback before I dump anymore money into the idea. The cost of quality ferrofluid by ferrotec is through the roof.

Hi Dondeal,

I think the reason you have had so little interest, so far, is because it's a totally new idea.

Some people here are quick to criticise because they already have an opinion about how, say, a pulse motor should work or a gravity wheel should operate. Take it as a green light to continue.

You have presented something totally new and I guess everyone, myself included, are waiting with baited breath to see it in action.

One piece of advice, all be it second hand from others experience of reed switches, is loose the reed switch. Hall effect or opto sensors will do the job far better for only double digit milliamps.

I now need to find out what a "pelton turbine" is !

All the best

Pelton Turbine - http://www.youtube.com/watch?v=sDVQaul_w7Q&feature=related

The pelton turbine youtube video is exactly what I envision to replace my temporary PVC Reservoir. However, his design has holes to release the water. Our design will need to have no holes to retain the fluid to re-use.

Hi Dondeal! Welcome to the forum

I have a thought about your design:
The ferrofluid inside the hose will be transported in a loop. The magnets on the wheel will move the ferrofluid. If the magnets can move the ferrofluid, there is obviously a magnetic coupling between the ferrofluid and the magnets.

However, even that eddy currents will not occour here, you have a mechanical drag that will prevent the magnets from moving the ferrofluid if the ferrofluid is loaded by a turbine, or a pump of some kind, which is connected to a generator. (I would tried skip the generator just to increase efficiency, and use a direct mechanical coupling instead).

So I cannot see any reason why this should even be an efficient design - or maybe I have misunderstood the whole concept...

Good luck anyways.

Vidar

Quote from: Low-Q on June 25, 2011, 06:10:24 AM
Hi Dondeal! Welcome to the forum

I have a thought about your design:
The ferrofluid inside the hose will be transported in a loop. The magnets on the wheel will move the ferrofluid. If the magnets can move the ferrofluid, there is obviously a magnetic coupling between the ferrofluid and the magnets.

However, even that eddy currents will not occour here, you have a mechanical drag that will prevent the magnets from moving the ferrofluid if the ferrofluid is loaded by a turbine, or a pump of some kind, which is connected to a generator. (I would tried skip the generator just to increase efficiency, and use a direct mechanical coupling instead).

So I cannot see any reason why this should even be an efficient design - or maybe I have misunderstood the whole concept...

Good luck anyways.

Vidar

Hi, thanks for the welcome.

This is definitely the area that needs testing by others because it is the most important.

Once the ferrofluid is pulled around the loop, it releases very easily. Remember, that capillary action forces the fluid a good length up the loop, by itself, so the rotor doesn't have much work to do. Also, the loop of the tubing contours to the shape of the rotor and that helps.

The pelton turbine will capture the energy of the ferrofluid after it re-enters the reservoir. It will not create a drag. I know Lenz's Law will act upon the turbine as it creates electricity, but it should have no effect on the moving fluid. It's an independent system that shouldn't slow the fluid at all.

In my design, the pelton turbine would harvest the energy of the fast moving fluid that the shaft expensed for only mere milliamps. That's the beauty of the whole concept, were getting fluid to move at extremely fast speeds for only milliamps. People have said that pulse motors have no torque and can do no work, but my ferrofluid idea could change that.

You cannot choose in what direction the capilary effect will work. This effect will also prevent the fluid to exit the hose. No free lunch in this effect.