Storing mechanical energy for later kinetic energy release

[RICKYtan]

Can there be a system that utilizes mechanical energy to produce kinetic energy, but "storing" the mechanical energy to be used at a different time for kinetic energy? Like a bike where you pedal but don't move; that mechanical energy is waiting to be "released" by some mechanism

*** exclude wind turbines, specifically I'm asking about a system that DOES NOT have to use any electrical energy if that's possible

 

[nasu]

Kinetic energy IS mechanical energy.

 

[russ_watters]

I'm confused too, but are you just talking about a flywheel?

 

[hilbert2]

Can there be a system that utilizes mechanical energy to produce kinetic energy, but "storing" the mechanical energy to be used at a different time for kinetic energy? Like a bike where you pedal but don't move; that mechanical energy is waiting to be "released" by some mechanism

*** exclude wind turbines, specifically I'm asking about a system that DOES NOT have to use any electrical energy if that's possible

If you compress air with a cylinder and a piston, you're doing just that - the energy can be released at any time by letting go of the piston.

 

[RICKYtan]

Kinetic energy IS mechanical energy.

Yes that's true I was thinking ahead
Can

I'm confused too, but are you just talking about a flywheel?

That's all true i was thinking ahead. I really meant generating mechanical energy in one system, "transferring" or "storing" it to another system to be used later as mechanical energy...which in turn generates kinetic energy

 

[russ_watters]

That's all true i was thinking ahead. I really meant generating mechanical energy in one system, "transferring" or "storing" it to another system to be used later as mechanical energy...which in turn generates kinetic energy

So, again, you appear to think "mechanical energy" is something specific when in reality it is a category that encompasses kinetic energy, potential energy, sound energy, spring energy, pressure energy, etc. So what you are asking is circular and trivially true. It's like asking if you can use a dollar as money.

Please try to reword it to describe the actual mechanism of energy you are trying to generate and store. A bike wheel? A rock held over your head? A compressed spring? Eetc.

 

[sophiecentaur]

"storing" it to another system to be used later as mechanical energy...which in turn generates kinetic energy

How about a Grandfather Clock?

 

[nasu]

Possibly that you mean potential energy, to be later converted to kinetic energy. Any system with potential energy is doing this "storing": a spring, compressed gas, a water tank at some height above the ground, etc.

 

[cosmik debris]

A battery, for instance, with a generator connected to a mechanical device of some sort. The F1 cars collect energy from the brakes and from the turbo-charger and store it in the battery. This stored energy is then used as a boost for the Internal combustion engine or to keep the turbo spinning at low engine load. There are countless examples of this and efficient energy storage is a problem everyone would like to solve.

 

[Khashishi]

Or, you can push a minecart up a hill.