Sure, it's a doable device.
But is it worth it in terms of our energy problem? (next years I'll fail paying the bill if prices continue to increase and reach tens of thousands). The problem is
this device, though a potential
battery replacement, is neither overunity (and tom not claims that) nor does it produce energy (like wind, water turbine).
Currently it's more like:- batteries -> drive circuit -> transformer -> magnet -> magnetic fields -> flywheel -> rotate and waste (because of losses, even battery submits losses here) -> consumer appliances
Can't we take it from the batteries directly then?
If we put it on the doable devices list we should note that it's a energy storage technology where losses depend on flywheel air friction/bearings/drive circuit power losses, ...
Rectifying as shown in the circuit & friction will be disastrous energy losses once you want to save more energy (as we want when powering our homes, don't we?).
I would keep out the drive circuit & transformer completely:[list=1]
- Instead of rectifying the AC line current, driving a transformer, using roundabout way via magnetic field I would use the 60 Hz AC (from e.g. a AC wind turbine) directly (=> NO losses here) and
- drive a high efficiency (> 96%) axial flux AC motor. (rpm depends on drive signal frequency, fixed here, no motor controller needed).
- Fix a flywheel to the motor.
- Once the flywheel has speeded up fully, the flywheel will disconnect the AC line via mechanical switch automatically using centrifugal forces.
- How that works? - I think of a sliding piston as contactor switch. It is fixed on an electrically isolated axial rod of the flywheel (like on a bicycle spoke) in such a way that it can slide from the center to the outer and has contact to the center during slow rotation.
Now, the quicker the wheel turns the higher the centrifugal forces on the movable outer sliding piston. (F_centrifugal = m * v^2 / radius) Once the centrifugal force reaches a certain level, the two contactors (axle & piston) will separate, hence disconnecting the flywheel motor from the AC power line. Now imaging taking two (four) opposite 180° (90°) apart sliding piston contactors instead of one.
- Then we ensure voltage supply to the motor/flywheel if at least one of the two (four) pistons is in contact with the axle - where the AC line goes in. This ensures that the motor gets accelerated if it slows down. (if just using one sliding contactor it is possible that gravity pulls the piston to the outer of the flywheel, away from the axle, thus no longer contact due to insulation, resulting in a not working storage machine).
Same effect, less losses (only air friction and motor losses 4% but it's only used for startup -- if not using magnet bearings friction has to be included). Automatic switch off and on mechanical construction. => robust, simple -- + since now also open source.
:)A sketch render of the rough idea. (Using 3 sliding contactors.) Have to think about how to combine schematic/wiring with good overview ...
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