Ejector Design Calculation Xls Fixed
The formulas provided assume ideal gas behavior. If you are operating at very high pressures or close to the hydrocarbon dewpoint, swap out the ideal gas constant calculations for real-gas compressibility factors (
If calculating multi-stage ejectors, does the discharge of stage 1 correctly feed into the suction input of stage 2? ejector design calculation xls fixed
Estimate R using: = MAX(0.1, 2.5 * (P_s / P_d)^0.85) (conservative approximation) The formulas provided assume ideal gas behavior
By entering these fixed values, the spreadsheet solves the 1-D compressible flow equations to predict the ejector’s performance. The mixed fluid enters the diffuser, where velocity
The mixed fluid enters the diffuser, where velocity decreases, and pressure recovers to the discharge pressure.
mm=msERm sub m equals the fraction with numerator m sub s and denominator cap E cap R end-fraction Nozzle Throat Sizing ( Atcap A sub t