A standard engineering spreadsheet for ejectors follows these sequential steps: : Motive Pressure ( Ppcap P sub p ) : High-pressure steam or fluid entering the nozzle. Suction Pressure ( Pecap P sub e ) : Low-pressure entrained vapor. Discharge/Exit Pressure ( Pccap P sub c ) : Pressure at the condenser or outlet. Calculate Ratios : Expansion Ratio ( Ercap E sub r = ) : Determines how much the motive fluid can expand. Compression Ratio ( Crcap C sub r =
Suction inlet conditions and suction velocity ejector design calculation xls