Force Needed to Turn Generator at Maximum Output

In summary, the conversation discusses the amount of radial force needed to keep a 10000W generator turning while producing maximum output. The participants also mention the relationship between energy, force, and power, as well as the factors that affect the speed of a generator. They also mention the formula for calculating power in conventional SI units. Ultimately, it is emphasized that the conversation is for learning and not for spoon feeding.
  • #1
Giesick
5
0
Hi I was hoping someone could tell me the approx. amount of radial force needed to keep a 10000W generator turning while producing maximum output if there is a 1ft pulley connected to it that does the turning.
Thanks
 
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  • #2
There shouldn't be any radial force to keep a generator turning.

Energy is force * distance, and power is energy/time.
So if you have a 1 metre radius drive wheel on the turbine and a force of 1 Newton at the edge pushing it around then the energy for each turn will be 2*pi*1 = 6.3 Joules, if you turn it once/second you will get 6.3Watts.
 
  • #3
When generator has a load on it, it becomes more difficult to turn. So how many N do you need to turn it while it produces 10000W if the drive wheel is 0.3m?
 
  • #4
I could turn it at one rpm with 10,000N or at 60Hz with 2.8N
Depends on the generator - normally they are designed for a particular speed which depends on the electricty frequency, the number of phases and the generator design.
 
  • #5
Assuming perfect conversion of mechanical to electrical work, power=rpm*torque. You should be able to take it from there.
 
  • #6
So if there are 746 watts/horsepower for turning it and the generator frame is 78% efficient. What would the motive force be for my 10,000 watt goal.
 
  • #7
C'mon, make an attempt to calculate it with the formula given! This site is for learning, not spoon feeding!
 
  • #8
Power = rpm * torque only in some amazingly bastardized units!

Power = omega * T = (2*pi*rpm/60) * Torque

in more conventional SI units.
 

1. What is the force needed to turn a generator at maximum output?

The force needed to turn a generator at maximum output depends on various factors such as the size and type of the generator, the resistance of the load, and the speed at which the generator is rotating. Generally, a larger generator will require more force to turn at maximum output.

2. How does the resistance of the load affect the force needed to turn a generator at maximum output?

The resistance of the load has a direct impact on the force needed to turn a generator at maximum output. A higher resistance load will require more force to turn the generator compared to a lower resistance load. This is because the generator needs to work harder to produce the desired amount of power to overcome the resistance.

3. Does the speed at which the generator is rotating affect the force needed to turn it at maximum output?

Yes, the speed of rotation does affect the force needed to turn a generator at maximum output. As the speed increases, the force required to turn the generator also increases. This is because the faster the generator rotates, the more power it produces, and thus, more force is needed to maintain that speed and output.

4. Can the force needed to turn a generator at maximum output be reduced?

Yes, there are a few ways to reduce the force needed to turn a generator at maximum output. One way is to decrease the resistance of the load by using more efficient appliances or equipment. Another way is to increase the speed of rotation, which will reduce the force needed to maintain the same output. Additionally, using a smaller or more efficient generator can also reduce the force needed.

5. How can I calculate the force needed to turn a generator at maximum output?

The force needed to turn a generator at maximum output can be calculated by using the formula F = P/V, where F is the force in Newtons, P is the power output of the generator in Watts, and V is the velocity of rotation in meters per second. However, this calculation may vary depending on the specific characteristics of the generator and load, so it is best to consult the manufacturer's specifications for a more accurate calculation.

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