: Modeling the supersonic shock and diffuser compression.
The (mass of suction fluid per mass of motive fluid) is the most critical result.
Ejector design calculations in Excel focus on determining the Entrainment Ratio Area Ratios ejector design calculation xls
| Parameter | Symbol | Typical Unit | |-----------|--------|---------------| | Motive fluid pressure | P₁ | bar / psia | | Motive fluid temperature | T₁ | °C / °F | | Motive flow rate | m₁ | kg/h or lb/h | | Suction fluid pressure | P₂ | bar abs | | Discharge pressure | P₃ | bar abs | | Molecular weight of gases | MW | g/mol | | Specific heat ratio | γ (k) | dimensionless | | Entrainment ratio (Rw) | m₂/m₁ | - |
of the device based on the properties of the motive and suction fluids Key Content of an Ejector Design XLS : Modeling the supersonic shock and diffuser compression
Here are three keys to successful spreadsheet-based ejector design:
Sheet: "Results"
If you are looking for ready-made templates, several online resources provide downloadable Scribd spreadsheets based on these principles. If you'd like, I can: for each cell. Explain how to use SOLVER to find the optimum P2cap P sub 2 Compare this analytical method with a graphical approach . Let me know how you'd like to proceed with the design . Share public link
First, convert units:
Ejectors are widely used in refrigeration, vacuum systems, chemical processing, and aerospace. Their advantages include no moving parts, simplicity, and the ability to handle corrosive or two-phase flows. However, design is challenging due to coupled shock waves, mixing layers, and compressible flow effects.