Calculate the power produced by a wheel

In summary, the conversation discusses the difficulty in calculating the power produced by a Stirling engine with limited information. It is mentioned that knowing the pressure and temperature inside the engine would be necessary, and that measuring the torque and RPM could also be a method for calculating power. However, the power produced by the engine is noted to be very low and only enough to match friction and other losses.
  • #1
TheAnt
19
1
Hi,

I am trying to calculate the power produced by this Stirling engine:
low_temperature_stirling_engine_1.jpg

I know there is a way of finding by measuring the pressure and temperature inside the engine but the only data I have is the weight the RPM and the weight of every part of the engine. I understand how to calculate power for a linear motion but not for a circular motion.

Thanks
 
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  • #2
You can't calculate the power with the information provided. You need thermodynamic information about the cylinder -- the specs of the wheel are actually completely irrelevant.
 
  • #3
+1.

The power produced is very low. Just enough to match friction and other losses such as air resistance in the flywheel. If it was any greater the flywheel would accelerate.
 
  • #4
Perhaps you could calculate the power by measuring the torque and rpm? To measure the torque try putting weighing scales under the end like this (It's not quite that simple but you get the idea). Once you have the torque you can use...

Power (in Watts) = torque (in Newton Meters) * angular velocity (in Radians per second)

Sterling Engine.jpg
 

FAQ: Calculate the power produced by a wheel

What is the formula for calculating the power produced by a wheel?

The formula for calculating power produced by a wheel is: Power = torque x angular velocity. This means that power is directly proportional to the torque applied to the wheel and the speed at which the wheel is rotating.

How do you measure the torque of a wheel?

The torque of a wheel can be measured using a torque wrench. This tool applies a certain amount of force to a lever arm and measures the resulting torque in units of Newton-meters (Nm).

What is angular velocity and how is it measured?

Angular velocity is the rate at which an object rotates around a fixed point. It is measured in radians per second (rad/s) and can be calculated by dividing the angular displacement (change in angle) by the time taken to make that change.

How does the diameter of the wheel affect the power produced?

The diameter of the wheel does not directly affect the power produced, but it can indirectly affect it by changing the torque required to rotate the wheel. A larger diameter wheel will require more torque to rotate, resulting in a higher power output.

What factors can affect the power produced by a wheel?

The power produced by a wheel can be affected by various factors such as the torque applied, the speed of rotation, the weight of the object being moved, and the efficiency of the wheel's mechanism. Friction and air resistance can also play a role in reducing the power output of a wheel.

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