Enter the energy input and the efficiency into the calculator to determine the useful energy output. This calculator helps in understanding how much energy is actually utilized for work in a system.
Useful Energy Formula
The following formula is used to calculate the useful energy output.
UE = EI * (E / 100)
Variables:
- UE is the useful energy output (joules)
- EI is the energy input (joules)
- E is the efficiency (%)
To calculate the useful energy output, multiply the energy input by the efficiency (as a percentage of 100).
What is Useful Energy?
Useful energy is the portion of the total energy input that is actually converted into work in a system. It is the energy that is effectively used for the intended purpose, excluding any energy lost as waste or inefficiency. Understanding the useful energy output is crucial for evaluating the performance of machines, devices, and processes, and for improving energy efficiency.
How to Calculate Useful Energy?
The following steps outline how to calculate the Useful Energy Output.
- First, determine the energy input (EI) in joules.
- Next, determine the efficiency (E) as a percentage.
- Next, gather the formula from above = UE = EI * (E / 100).
- Finally, calculate the Useful Energy Output (UE) in joules.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Energy input (EI) = 500 joules
Efficiency (E) = 80%
