Power Generation from Constant Rotating Mass

In summary, the conversation discusses a rotating object with a mass M, radius R, and speed V, and how much electrical power it can generate given certain assumptions. The speaker suggests calculating the work done by the system and the time it takes to perform one revolution to find the power. However, it is stated that the device cannot generate any electrical power.
  • #1
Hanababa
11
0
An object with a mass M is rotating around an axis, with an arm of radius R at a certain speed V.
Assuming that the movement is constant, and a 100% efficiency, how many watt of electrical power can this device generate ?

For example purpose, we can take M=60 kg, R=5 meters and V=10 meters per second.

I can't find all the formulas and am lost with the units.

Thanks a lot
 
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  • #2
That device can't generate any electrical power.
 
  • #3
Hello!

I assume it is some kind of engine, and rotary motion somehow generates electricity through another undisclosed system.

I would try to calculate how much Power our system has at any point, and if this motion is constant and translates to Electrical Energy - this is the generated power.

Try to find the work done by the system and how much time it takes to preform (lets say for one revolution) and then you can find the power of the system: P = dW/dt

(useful equation: P(t) = torque(t) * angular_velocity(t) )
 
Last edited:

Related to Power Generation from Constant Rotating Mass

1. How does power generation from constant rotating mass work?

Power generation from constant rotating mass involves using the kinetic energy generated by a rotating object to produce electricity. This is achieved by connecting the rotating mass to a generator, which converts the kinetic energy into electrical energy. The amount of power generated depends on the speed and mass of the rotating object.

2. What types of objects can be used for power generation from constant rotating mass?

Any object with mass and the ability to rotate can be used for power generation. This includes flywheels, turbines, and even spinning disks. The key is to have a consistent and continuous rotation to ensure a steady flow of kinetic energy for power generation.

3. How efficient is power generation from constant rotating mass?

The efficiency of power generation from constant rotating mass depends on various factors such as the type of rotating object, the speed of rotation, and the design of the generator. Generally, this method of power generation can be quite efficient, with some systems achieving up to 90% efficiency.

4. What are the advantages of using power generation from constant rotating mass?

One of the main advantages of this method is its ability to store energy. The rotating mass can continue to generate electricity even when the primary energy source is not available. It is also a reliable and cost-effective way to produce electricity, with minimal maintenance requirements.

5. Are there any limitations to power generation from constant rotating mass?

One limitation is the initial cost of setting up the equipment for power generation. It may also require a large space for the rotating mass, depending on the scale of the system. Additionally, the rotation must be consistent and continuous to ensure a steady supply of electricity, which may not always be feasible in certain situations.

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