The compressor efficiency (η_c) of a turbofan engine is a key parameter that quantifies how effectively the compressor is performing in terms of compressing air. It is an essential factor in assessing the engine’s overall efficiency and performance. Here’s the formula, definition, and SI unit for compressor efficiency in aircraft design:Formula:
The formula for compressor efficiency (η_c) is calculated as follows:
- η_c is the compressor efficiency, a dimensionless value.
- Actual Pressure Ratio is the pressure ratio achieved by the compressor based on its actual performance.
- Ideal Pressure Ratio is the pressure ratio that would be achieved under ideal (isentropic) conditions, assuming no losses.