Flywheel Systems and Inertial Energy

Lady Devine,

First, my apologies for getting your gender wrong in an earlier thread.

Second, please turn your caps lock off. Writing in all capital letters is considered shouting.

Third, are you talking about the motion of the planets itself as a flywheel or are you claiming a method to tap into the planetary motion?

Sorry for shouting, I'm new to typing.

Some strange magical energy appears when I spin my large flywheel (2000mm dia.) rim weight 1250 kg. at 750 rpm. It dosen't add up.

If I straigented out my flywheel rim to a 22ft. cube of metal and excellerated it to = 750rpm, that's about 220 mph rim speed, it would travel on a lenier path about a mile in about 15 seconds reducing speed rapidly.

When I excellerate my 22ft metal hoop (flywheel) on a circular path to the same speed and remove the driving force, it travels (freewheels) about 21 miles on a circular path over a whopping 42 MINUTE period, also at a reducing speed. For the first 90 seconds approx. of it's wind-down time it mantains a constant speed. 750 rpm. By the way, this is not an old reclaim, it's a professionally engineered piece of kit with all the international standards certs.

I call it the Cosmic Turbine because it reminds me of the spinning solar system. I'm not educated in these things but I either missunderstand Newtons law of motion, or this law does not apply to large rim weighted high speed flywheels.

The text books tell me one thing and the flywheel tells me something else.

Am I on a different planet?

Oh, so Cosmic turbine is the name of this flywheel. Well I suspect the first thing that you're missing is the math. The numbers you are claiming don't add up to me either. A 2 meter diameter wheel spinning at 750 RPM has to my calculation a 78.5m/s tangential velocity, which converts to about 176 mph.

v= pi*D*(R/min)*1min/60sec ≈ 3.14159*2m*750/(60 sec)≈78.5m/s

Regardless of where your mass is distributed, 1250 kg is a lot of mass to be spinning at 750 RPM. I'm not the least bit surprised that once spinning at this speed it takes along time to slow down from just bearing friction. That is a dangerous amount of mass to be spinning that fast.

Now depending on how uniformly distributed is the mass and if this flywheel is a drum or a coin in shape you must use a different formula to calculate the moment of inertia of this spinning mass. To derive these equations requires a firm understanding of multidimensional Calculus. Most of the time though a flywheel will be close enough to one of the standard shapes shown on the Wikipedia link that the difference can be a very small error that does not matter.

Now I don't understand at all what you mean by straightening out the flywheel to a 22 ft. cube.

1. What method are you using to speed this 1250 kg flywheel up to 750 rpm?
2. How long does it take to reach this speed?
3. How many kilowatt-hours are you putting into it?
4. Have you done the calculations to equate this many kwh (minus efficiency losses) to the kinetic energy of the flywheel?
5. What law of physics dictates that equality?
6. "Inertia" and "moment of inertia" are not the same thing. Please study each and how they are related to one another.
7. There is no "strange energy" that appears when ramping up a flywheel. All of the energy is accounted for by well established principles of physics. But one has to know physics to understand this.
8. A flywheel does store energy, but if you tap off this energy, the flywheel slows down. You can repeat this process, but each time you speed up the flywheel, you have to put energy into it. Because of friction and windage losses, you never get back out of it as much energy as was put into it in the first place.
9. What law of thermodynamics dictates that?
10. What does a = v²/r mean in relation to this topic? What about F = ma?
11. Have you ever seen a flywheel disintegrate or break out of its housing?
12. Please describe the relationship between (10) and (11).

Questions like these are exactly what you need to know to discuss flywheels correctly. So far you have mixed up concepts, made many ridiculous and/or false statements, and furnished no calculations or explanations that compute. And none of your replies has been even remotely cogent. Outright evasive, actually.

Yeah, we have seen all sorts of people who don't know thing one about physics but by some magic can fancy themselves to be Newton, Einstein, and the Wright brothers all rolled up together.

Wow,

You may be right. Question is, what can it drive?

The Solar Sytem -

Another link to a web site about our Solar System;

Nineplanets.org

Not quite as kid friendly, but...

Flywheel systems are quite interesting, to be sure. There have been many uses for flywheels in energy systems and industrial applications.

Large flywheels can become unwieldy if they are not oriented to the rotation of the earth properly. The axle must point North or the flywheel will precess as the world turns.

Large flywheels don't do well in vehicles for the same reason, when the vehicle torques the flywheel, it can tip it right over with precession.

Yes, the solar system is a big flywheel, with very heavy flywheels orbiting the sun. Through gravity and magnetic forces they affect one another, but the primary motion is due to the weight, or mass, of each planet, and it's momentum.

I'm sure one reason the solar system has been spinning for so long is there is little to slow it down. Consider the spinning ice skater who speeds up when she pulls her arms in. As gravity pulls planets to the sun, they may just speed up in their orbits. Not sure about that, maybe one of our astronomers can help there.

Hi Mike K, what a brilliant observation:

"The reason the solar system has been spinning for so long is there is nothing to slow it down"

Here I was torturing my self about what makes it spin. Change the question and it's simple. What's stopping it from spinning? NOTHING! I was thinking from within the Earth's field of gravity. Space has no gravity. Well done, I hope you are a teacher. The world needs thinkers like you.

Sometimes the answer is "change the question"

Cheers

Flywheel

Can you please post a picture of the cosmic turbine.

The best I could do was

I have an idea how to rev it up without using much energy, but need more detail to finalize the plan.