Welcome to my Mechanical Efficiency home page! Click on the links above to learn more about mechanical efficiency.
First of all, what is mechanical efficiency?
Mechanical Efficiency is the measurement of the effectiveness of a machine in transforming the
energy and power that is input to the device into an output force resulting in movement. Mechanical efficiency can never be 100% due to friction.
To calculate the mechanical efficiency follow this formula;
ME= workoutput x100% mmmwork input
This formula gives you the mechanical efficiency in a percent. Say you get 60% as your answer, this would mean that your machine is 60% efficient and that 40% is being wasted as heat due to friction.
To calculate the energy wasted as heat use this formula;
Work output= FxD Work input= FxD
Energy wasted as heat= Wi - Wo
Here is a quick video describing the basics of mechanical efficiency;
How to Increase Efficiency
Work Output vs. Work Input
Practice Questions
Practice answers
Bibliography
Welcome to my Mechanical Efficiency home page!
Click on the links above to learn more about mechanical efficiency.
First of all, what is mechanical efficiency?
- Mechanical Efficiency is the measurement of the effectiveness of a machine in transforming the
energy and power that is input to the device into an output force resulting in movement. Mechanicalefficiency can never be 100% due to friction.
To calculate the mechanical efficiency follow this formula;
ME= work output x100%
mmmwork input
To calculate the energy wasted as heat use this formula;
Work output= FxD Work input= FxD
Energy wasted as heat= Wi - Wo
Here is a quick video describing the basics of mechanical efficiency;
Mechanical Efficiency