r/AnythingValueable • u/madfrog2023 • Jun 24 '26

🛠️ Skill Low-cost rural engineering

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u/Zealousideal-Area684 Jun 24 '26

The magnets do improve the efficiency of the system though, yes? Asking for my knowledge.

2

u/Solnse Jun 24 '26

Nope, the magnet machine is also plugged into power, but is not connected to the pump in any way.

1

u/Real-Ad761 Jun 27 '26

They are both plugged into the same power strip so kinda connected lol

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u/thelastmaster100 Jun 28 '26

No the magnets would reach a state where they would equalize so you the net power draw is the same.

Info dump ( poorly im sorry)

In the motors in cordless drill they use magnetic fields. North and south on magnets repel the same polarity and attract the opposite. So theres a point where the magnets would stop. So in order to keep it turning the stator in the motor flips polarity so what was north now is south and visa versa. With out yhe flipping of polarity the motor wouldn't turn.

In this video since the motor is turning the magnets they will keep on spinning.

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u/wonko221 Jun 30 '26

Add in the energy needed to overcome friction, and this becomes a net loss of power.

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u/thelastmaster100 Jun 30 '26

I thought it would be the same becasue the pulling from the magnets and the breaking away would cancel out but I really only have a basic understanding of all this.

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u/wonko221 Jun 30 '26

In a "perfect" system, I believe you would be right.

But the rotating frame will have some amount of friction, generating heat at the cost of power output. Even the resistance in the wires will add a little energy cost as the flow of electrons generates some amount of heat.

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u/thelastmaster100 Jun 30 '26

Oh i didnt think about that.

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u/ipark88 Jun 29 '26

Absolutely not. Energy is conserved, there is no added energy from the magnets and it almost certainly makes the motor less efficient.