How to generate electricity from powered sewing machine, whose motor runs around 2000 rpm?

Question

We've 500 powered sewing machines in our factory. Like all the machines running by motor these, sewing machines are also working. My idea is to use motor's rotation to generate electricity, like wind mill and turbines work. Conversion of elxtrical energy to electricity. Can someone help me how to execute this in most economical way...

Answer 1

Won't work, for the same reason perpetual motion machines don't work, you can't get energy from nothing.

If it worked, the world would be set for electric power forever, no more oil, no more coal. However, it doesn't.

Answer 2

No one does this.

The reason is that the electricity you generate is worth less than the electricity you have to buy to run the motors. As the other posters indicate, this is an inevitable result of the Law of Conservation of Energy. Plus, you have more expense, because of the cost and maintenance for all the generators.

Better idea is to use conservation to save energy and reduce costs.

Answer 3

Unfortunately it sounds a lot like you are trying for perpetual motion here - which won't work.

The way that the sewing machines could be made to generate electricity is to attach a magnet to the spinning rotor and place this rotor inside a coil of wire. You would find that current was generated in the wire that could then be used to charge a battery or run an appliance. Google electricity generator for specifics.

However, you can't get something for nothing. The magnetic field would interact with the current in the wire, opposing the motion of the rotor (making it slower). The law of conservation of energy states that you couldn't get more energy out of the wire than was being lost by the sewing machine, in fact, due to inefficiencies in electricitry generation, you would get significantly less.

There you go - you could use a sewing machine to generate electricty but the electricity generated would be much less than the extra energy used by the sewing machine with the generator compared to before the generator was attached.

Hope that's clear.

Answer 4

The motor is not well identified, but if the motor is permanent run and instantaneous load motor, and you are giving load by pressing clutch of sewing machine, then your motor is working mostly 50% without load, and in this condition you can use your motors fully occupied by using same 95% capacity of generator or dynamo with the shaft of motor and switch the load of generator through clutch lever.

When you run machine, the armature will move without any load, but the time you stop your machine, your generator connect to load. what ever load you apply, but you can never connect all 500 units together for ac supply nor to connect different voltage of dc supply for dc power source, well you  search for any equipment to connect the all generated power together.

You can save about more then 80% of your power wastage.