Ejector Design Calculation Xls [FAST]

✅ No license cost – uses standard MS Office.
✅ Transparent formulas – easy to audit.
✅ Rapid iteration – change inputs, update instantly.
✅ Customizable – add fluid properties from REFPROP or steam tables (add-in).
✅ Educational – helps engineers understand sensitivity.

| A | B | C | D | |---|---|---|---| | Input Data | Value | Unit | Remarks | | Motive pressure (P1) | 6.0 | bar_g | | | Suction pressure (P2) | 0.5 | bar_abs | | | Discharge pressure (P3) | 1.2 | bar_abs | | | Motive flow (W1) | 500 | kg/h | Steam | | Suction flow (W2) | 150 | kg/h | Air | | Calculations | | | | | Entrainment ratio (R) | 0.30 | | =W2/W1 | | Compression ratio (CR) | 2.40 | | =P3/P2 | | Expansion ratio (ER) | 12.0 | | =P1/P2 | | Recommended area ratio (K) | 8.5 | | Lookup table | | Nozzle throat area (At) | 28.3 | mm² | Formula | | Mixing throat area (Am) | 240 | mm² | =AtK | | Nozzle throat dia (Dt) | 6.0 | mm | =SQRT(4At/π) | | Mixing throat dia (Dm) | 17.5 | mm | =SQRT(4*Am/π) | | Diffuser outlet dia | 35 | mm | User rule-of-thumb | ejector design calculation xls

Be honest: A spreadsheet cannot handle:

For 95% of industrial sizing (steam jets, air ejectors, single-phase gas), an XLS is sufficient for preliminary and even detailed design. ✅ No license cost – uses standard MS Office

A professional ejector spreadsheet requires these input fields, typically separated by service type (Gas-Gas, Steam-Jet Vacuum, Liquid-Liquid). For 95% of industrial sizing (steam jets, air

A well-structured ejector design XLS typically follows these steps: