Hi here,


This is what i am building i will like to have your opinion on my design the (math and mechanical/electrical engineering)

I have no math for you, but I can probably say something about this design:


An electromagnets magnetism is a magnetic respons that is equivalent to the supplied current and number of windings. Voltage is out of the equation when it regards elektromagnetism. If you have a permanent magnet with a given magnetic strength, you must supply an opposite equivalent magnetism to "turn off" the permanentmagnet. You can just imagine what this means. You could likely have a bare electromagnet and pulse it with current at the right timing to get repulsion or attraction. The energy input will be the same.


When you supply current, you will also supply voltage due to the resistance in the coil. That means you must supply energy into the coil for as long you want the magnetism to sustain. You will get back partially that energy when the coil shuts down. However, if the coil was super conducting, there would be no voltage, just current, and therfor no energy would be supplied to keep the electromagnet magnetic.


Only with a super conducting coil, your design would probably become a unity device (not over unity). Because when the electromagnet turns on, it takes energy to build up the magnetism. Under super conducting conditions, all this energy is taken back when the electromagnet turns off and the magnetism breaks down. You have unity.


br.


Vidar

I have no math for you, but I can probably say something about this design:


An electromagnets magnetism is a magnetic respons that is equivalent to the supplied current and number of windings. Voltage is out of the equation when it regards elektromagnetism. If you have a permanent magnet with a given magnetic strength, you must supply an opposite equivalent magnetism to "turn off" the permanentmagnet. You can just imagine what this means. You could likely have a bare electromagnet and pulse it with current at the right timing to get repulsion or attraction. The energy input will be the same.


When you supply current, you will also supply voltage due to the resistance in the coil. That means you must supply energy into the coil for as long you want the magnetism to sustain. You will get back partially that energy when the coil shuts down. However, if the coil was super conducting, there would be no voltage, just current, and therfor no energy would be supplied to keep the electromagnet magnetic.


Only with a super conducting coil, your design would probably become a unity device (not over unity). Because when the electromagnet turns on, it takes energy to build up the magnetism. Under super conducting conditions, all this energy is taken back when the electromagnet turns off and the magnetism breaks down. You have unity.


br.


Vidar

Hi Vidar


Thank you for your lecture about electromagnets and magnetism .But have you overlooked this design?
i am well aware of "you must supply an opposite equivalent magnetism to "turn off" the permanent magnet"
and this is not my goal  .My goal is to weaken the attraction between the permanent magnet and the electromagnet to allow the previously canceled repulsive force to act most of the work is being done by the permanent magnets  .


even in the case of "you must supply an opposite equivalent magnetism to "turn off" the permanent magnet"
what really happening here is not only a "turn of " or cancellation but also a repulsion .
That previous attraction turned into repulsion unleashes the other canceled repulsive force  the one that does the free work .


the electromagnet is just assisting here


 


already calculated the resistance of my coil the power needed  etc .
 


Thanks for your opinion.

In the best case you will have an efficient electromotor, but not over unity. Regardless how I misunderstood the design (Which design I understand now after examining it closer), there is loss in the coil which prevents it from delivering all the energy back.
Further, if you load the motor, the efficiency will decrease due to increased heat in the coil.


The best case is a superconducting coil. Then you can expect the motor to have a potential efficiency of 100%. The coil cannot deliver more back emf than the energy supplied to it in the first place. However, if it had, you would have a motor with more than 100% efficiency - over unity - with a coil which is more than super conducting. The question is: What coil have less than 0 Ohms resistance? Because, that is what you need to reach over unity in this particular case.


Good luck with the project anyways 


Vidar

Hi Vidar


Got your point but its clear that you didn't understood it since the electromagnet doesn't represent more than 1/3 of the energy involved here just like a "car jack" .
the coil is 0.0144 ohms  and it doesn't really matter . 550 paralleled wires 3 centimeters long  almost  no voltage just current  and there is no back emf nor lenz's law here  since the coil does not interact with any of the rotor changing flux and its not a closed circuit just a medium producing emf as byproduct in an open circuit .


A source of power
       |
       |
       |------C EMF
       |
       |
B Load


anyway that's not the point here and i will not try to convince you any way don't worry i know how misconceptions ,bad math and misunderstanding of physic 101 can lead to ridicule . But that's not the case here  .






Thanks Sidneo

OK. Just don't mix up ENERGY and FORCE.


You can lift a car with your bare hands with a jack, but on the cost of how long distance your hand moves versus the distance you lift the car. The "force x distance = same energy"


Vidar