Engine Efficiency Calculator

Formula

The formula to calculate the Engine Efficiency is:

\[ \text{Efficiency} = \left(\frac{\text{Work Output}}{\text{Energy Input}}\right) \times 100 \]

Where:

\( \text{Efficiency} \) is the engine's efficiency as a percentage.
\( \text{Work Output} \) is the energy produced by the engine when doing work (Joules).
\( \text{Energy Input} \) is the energy consumed by the engine to perform work (Joules).

What is Engine Efficiency?

Engine efficiency is a measure of how well an engine converts the energy input, typically fuel, into useful work output. It is an important metric in evaluating the performance of engines and can be used to compare different types of engines or the same engine under different operating conditions. High efficiency means that more of the energy from the fuel is being converted to work, while low efficiency indicates that more energy is being wasted, often as heat.

Example Calculation

Let's consider an example:

Work Output: 500 Joules
Energy Input: 1000 Joules

Using the formula to calculate the Engine Efficiency:

\[ \text{Efficiency} = \left(\frac{500}{1000}\right) \times 100 = 50\% \]

This means that the engine is 50% efficient, converting half of the energy input into useful work.