The Steorn magnetic motor replication by JL Naudin, page 2
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reply posted on 29-12-2009 @ 12:08 AM by LiquidLight
Originally posted by ignorant_ape
reply to post by jtma508


ok - as you claim that they have been " prooved " , please define for us EXACTLY what the following word salad means :

` polarity independant rotation `

` lack of reverse EMF `


I assume by polarity independent rotation he means that the rotor spins in the same direction regardless of the polarity of the electromagnet used. This in itself isn't proof of anything, since AC motors have been used for over a hundred years.

As for reverse EMF, basically all motors produce an electromagnetic field that directly opposes the rotation of the motor, thus slowing it down. The claim is that this motor doesn't have that.


reply posted on 29-12-2009 @ 02:09 AM by downisreallyup
Originally posted by die_another_day
First of all, this isn't about free energy, it's about efficiency of motors.



He's using a "pulsating direct current" which basically turns the dc on and off (or changes the amount of current) at high frequencies. He has it at around 100hz.


It creates the same result as an alternating current induced rotation.

AC has some back emf.

Pulsating DC still has some in my opinion. I'm not sure what he's doing that makes cemf 0.

Assuming that cemf is 0, the maximum RPM is causing by the DC induced force and the counter friction force from the bearings. If anything is connected to harness the energy the motor, the motor will decelerate, forcing increased power into the motor to maintain the RPM.


BASICALLY:

Cemf is like friction, if you can reduce it, you get greater efficiency.



[edit on 12/29/2009 by die_another_day]


No, it IS about free energy. It is the back EMF that contains that extra burst of energy that Tesla and Bedini talked a great deal about. This is not just about the gains realized by removing the back EMF, but also about the additional energy that is realized in the circuit when the back EMF triggers more energy to be pulled out of the cosmic vacuum.

It would be interesting for you to study the work of Bedini, Bearden, and of course Tesla, as it is quite apparent that this is all part of what the Steorn motor is taping into. These guys at Steorn may not even be aware of all these others people that have tapped into the same thing.


reply posted on 29-12-2009 @ 03:49 AM by ignorant_ape
reply to post by LiquidLight


hi - thanks for trying

however i am familiar with lenz`s law and the way a moving magnet and a static conductor will create " friction" even if the conductor is NOT part of a circuit

i guess i should have been more specific and demanded explaination of exactly HOW this force was eliminated


reply posted on 29-12-2009 @ 05:28 AM by Pilgrum
reply to post by OZtracized


Exactly right

Without back EMF the motor's input current would only be limited by the static impedance of the circuit IE startup or 'locked rotor current' as you said. Rising back EMF (a function of speed) is the reason a conventional electric motor's input current is the least at rated speed and no load where the power expended in overcoming copper loss, iron loss, bearing + gearbox friction and windage is perfectly represented by the product of input current and the difference between applied terminal EMF and back EMF. Loading the motor increases the difference between back EMF and applied EMF with a consequent rise in input current (I = (Et-Eb)/Z and P = I^2.Z)

What's presented fails to give me goosebumps



reply posted on 29-12-2009 @ 06:31 AM by Pilgrum
reply to post by Algebra


It's a simple arrangement that looks to have much in common with the Bedini machine. The electronics are quite simple and uncomplicated but the actual mechanical geometry will take a lot of tinkering to get it just right.

Looks like a very simple low power brushless motor which explains the low power consumption. What it has in common with other such 'wonder devices' is the horrendously inefficient magnetic arrangement with huge airgaps and no magnetic circuit whatsoever guaranteeing ultra-low performance. A conventional well designed brushless DC motor of equivalent physical size would tear your arm off almost.


reply posted on 29-12-2009 @ 07:29 AM by OZtracized
reply to post by Algebra


To answer your question, Pilgrim clearly knows more about the theory than I and this is what I do for a living.

Two qualified persons saying that the maths DOES NOT add up.

If you want to build it at home, go for it. I suspect that you'll "never get it quite right". A well designed D.C. motor (with high efficiency) with an armature of that radius would spin at a vey high R.P.M. and likely fly apart. It looks like a simple, low consumption (but low EFFICIENCY) motor.

I don't blame anyone at all for buying this because, at a glance, it sounds very reasonable.

In this case, there is no need to bring the laws of thermodynamics into the argument, thoroughly demonstrated electrical principals quickly throw a huge question mark over what is being presented.

A motor with zero losses (iron/hysteresis, copper/resistance and friction/heat) would have a back E.M.F. equal to applied E.M.F. and therefore "break even".

Back E.M.F. is not a loss, it is simply the equal and opposite force (minus losses), very much like inertia.

[edit on 29-12-2009 by OZtracized]


reply posted on 29-12-2009 @ 08:10 AM by broli
reply to post by dereks


No it didn't. The energy from the battery can be recovered back or at least most of it. If you want a scientific debate about this lets have it, don't just assume things with your only reason being "but but but energy can't be created". It has already been proven by numerous people that there is no induced EMF due to the motion of the magnet. Further more some said perhaps the emf was only induced when current was present, this was also proven by adding a pickup coil in run mode, again no induced EMF was present. Do you know what this even means? The coil and its inductance remain constant in time! Whether there's a magnet flying by or not. If you make your inductance high enough so the current doesn't hit the ohmic limit you will mostly work with inductive energy which can be recovered back easily.

As for the people asking how hard this is to replicate. If you have do not have much tools at home it will take some time to get it running, as you will need a rotating wheel stand, some glue, lots of wire and the toroidal cores.

I think people online will close the loop before Steorn will hold its talk about how much energy is being put out and put in.
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