Pressure ratio versus compression ratio.

Compressor Pressure Ratio - an overview

Finding the Optimum Compressor Interstage Pressure

A four-stroke diesel engine compression ratio is 21:1 and the cutoff is 2:1 what is the expansion ratio? - Quora

Gas turbine operating parameters? - Thunder Said Energy

The Diesel Engine

Compression and Expansion, Glenn Research Center

Why do we say the pressure ratio in a gas turbine and not a compression ratio? - Quora

Osman OZSOYSAL, Professor, PhD, MSc, BSc, Istanbul Technical University, Istanbul, Department of Naval Architecture and Marine Engineering

Compression Ratio Calculator (Static and Dynamic)