Torque and power calculation for a crank wheel

[Sudhakar Naidu]

How to calculate torque and power at 'drive wheel' with following inputs and also requirement shown in below picture-
a. Gear ratio, 1: 6
b. Attached 10Kg weight for bigger wheel to make as a crank wheel and diameter is 30inch.
c. Bigger wheel: Consider 180 degree is freely rotates(due to 10kg attached) and remaining 180 degree only we need to drive.
d. if any thing missed, please consider by your self. so i will co-relate later.
Please provide me formulas for the above request?( my background is electrical engineering, so needs help)

Thanks in Advance for your support.

 

[anorlunda]

This sounds like homework or a school assignment. Is it?

 

[Sudhakar Naidu]

Yes, it's homework but trying for something extra energy do we get or not?, If we see in youtube there are lots of flyweel free electricity generation but not able to believe those so am trying mathematically is really possible or not.
Thanks for your thought.

 

[CWatters]

Not. Free energy isn't possible. It's such a waste of time that it's a banned topic on this forum.

 

[CWatters]

The energy require to raise the 10kg will be =mgh where m=10kg, g=9.81m/s/s and h is the diameter of the wheel.

You might get that energy back as the weight returns to the bottom, less losses due to friction etc.

The gearing has no effect on this.

 

[anorlunda]

Yes, it's homework but trying for something extra energy do we get or not?, If we see in youtube there are lots of flyweel free electricity generation but not able to believe those so am trying mathematically is really possible or not.
Thanks for your thought.

@CWatters is correct. Free energy is a forbidden topic on PF. Thread closed.