If you want, I can:
Two main approaches exist for ejector design calculations. Your .xls file should implement both with a selector switch.
ARM = 12.5 (from interpolation)
While 1D models are fast, they lack accuracy for complex geometries. Modern approach:
This gives near-CFD accuracy without leaving the spreadsheet environment. ejector design calculation xls
| Row | Column A (Label) | Column B (Value) | Column C (Units) | | :--- | :--- | :--- | :--- | | 1 | SUCTION CONDITIONS | | | | 2 | Suction Pressure ($P_s$) | [Input Value] | bar(a) | | 3 | Suction Temperature ($T_s$) | [Input Value] | °C | | 4 | Suction Mass Flow ($M_s$) | [Input Value] | kg/hr | | 5 | Molecular Weight (MW) | [Input Value] | kg/kmol | | 6 | MOTIVE STEAM CONDITIONS | | | | 7 | Motive Pressure ($P_m$) | [Input Value] | bar(a) | | 8 | Motive Temperature ($T_m$) | [Input Value] | °C | | 9 | DISCHARGE CONDITIONS | | | | 10 | Discharge Pressure ($P_d$) | [Input Value] | bar(a) |
Here is the logic you embed into your Excel sheet: If you want, I can:
(Description) The input section includes colored cells for user inputs; calculation cells are locked and protected. A button runs VBA to perform the mixing pressure iteration automatically.
You might ask: Why not use commercial CFD or dedicated software like Aspen EDR? Two main approaches exist for ejector design calculations
An ejector design calculation XLS offers three unique advantages: