Find Work Done by Engine in One Propeller Rev - 171 hp, 2310 RPM, 527.612 N*m

  • Thread starter ACLerok
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In summary, the engine of an aircraft propeller delivers 171 hp of power at a rotational velocity of 2310 rev/min, resulting in a torque of 527.612 N*m. To find the work done by the engine in one revolution of the propeller, you can use the equation W = τθ, which is the rotational equivalent of W = Fd, where power is the rate at which work is done. This equation can also be written as W = (J/s) / (r/s), which will yield the same answer.
  • #1
ACLerok
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The engine of an aircraft propeller delivers an amount of power 171. hp to the propeller at a rotational velocity of 2310 rev/min. I found the torque produced to be 527.612 N*m
How can i find the work done by the engine in one rev of the propeller?
 
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  • #2
Power is the rate at which work is done.

171 hp = 746 W = 746 J/s

You have how many revs / s ?

(J/s)/(r/s) = J/r
 
  • #3
use this equation to find the work done: W = τθ (it's the rotational analog to W = Fd; realize that it's still a dot product, but we've simplified already)
 
  • #4
Touche, gnome.

ACLerok: you should get the same answer either way.
 

1. What is the formula for calculating work done by an engine in one propeller revolution?

The formula for calculating work done by an engine in one propeller revolution is: Work (in Joules) = Power (in Watts) x Time (in seconds).

2. How do you determine the power output of an engine?

The power output of an engine can be determined by multiplying the torque (in Newton-meters) by the rotational speed (in revolutions per minute) and dividing by 9.55 (conversion factor from horsepower to Watts). In this case, the power output would be: (527.612 N*m x 2310 RPM) / 9.55 = 12783.8 Watts or 17.1 horsepower.

3. What is the significance of the work done by an engine in one propeller revolution?

The work done by an engine in one propeller revolution is a measure of the amount of energy that is transferred to the propeller to generate thrust. This can be used to determine the efficiency and performance of the engine and propeller system.

4. Can work done by an engine in one propeller revolution be increased?

Yes, the work done by an engine in one propeller revolution can be increased by either increasing the power output of the engine, increasing the torque or rotational speed, or by optimizing the design of the propeller to reduce drag and increase efficiency.

5. How does the work done by an engine in one propeller revolution affect the speed and acceleration of an aircraft?

The work done by an engine in one propeller revolution is directly related to the thrust generated by the propeller. This thrust, in turn, affects the speed and acceleration of an aircraft. A higher work output will result in greater thrust and therefore, increased speed and acceleration.

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