Hi I have data for a two wheel bootstarp air cycle machine used in aircraft environmental control system for air-conditioning under working conditions. The data available (ie mass flow rate, pressure, temperature of bleed air) is for different flight conditions, different altitudes, different temperature and pressure. I want generate corrected mass flow rate vs pressure ratio curve of the turbine used in the system. I dont have the standard data noted at STP (standard pressure and temperature) conditions, and no manufacture provided performance curve, but can I generate a curve using the available values which is not taken under STP conditions. Please Help.