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I constructed a bedini-fan as well. However I'm not sure if it's running now on free energy or if it's just slowly draining my battery. My charging battery is charging, but my primary battery is slowly going down. Does the fan have overunity or is it less efficient?
And if i can make the fan run faster, will the efficiency increase at the same time?
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No one has a Bedini fan running on free energy.
The fan is a simple pulse motor and it is limited by efficiencies just the same as any other motor. Most of the energy consumed by the motor is consumed by mechanical power and heat, however with the Bedini recovery circuit we are able to recover some energy. The fan is less than 100% efficient.
If we increase the speed of the fan we are creating more mechanical power and causing more input power to be consumed. Because of friction and heat losses our efficiency actually drops.
This energy recovered is different from normal electricity and we are unable to measure its power on the output, John Bedini has stated this many times. we can measure volts but not able to measure amps. any amps we measure are likely to be the transformer effect of the coils.
The fan is however able to charge lead acid batteries almost as quickly as it discharges a similar battery so what is going on?
Something is happening in the charging battery. It has been suggested that a negative resistor is being formed in the charging battery during the pulse. The normal chemistry is slightly altered. The result is we get a near one to one charge and in addition increased capacity.
If we add up the mechanical and heat power, then add the recovered power in the charging battery, we find that we have more output than input. so any "free energy" we get is in the charging battery. Total output > total input
If we want to have more electrical output than input we have to convert the mechanical power back into electrical power, this is the point that most seem to miss. I am working on this but the truth is the fans are so small it is not so easy.
To make a self runner we have to feed this combined output back to the source Battery. Bedini has some circuits to do this. So now we have excess power that we can use to charge batteries.
I hope this answers your question and i hope i got all my facts right hehe
Mick