Higher temperatures increase the volume, requiring a larger ejector.
Adjusts calculations based on the thermal expansion of different metals. ejector design calculation xls fixed
Assuming you have downloaded a legitimate file (e.g., from a reputable academic source or engineering toolbox), follow this protocol: Higher temperatures increase the volume, requiring a larger
Because the geometry is fixed, manufacturers typically provide ejector curves that show how discharge pressure impacts performance for specific gas flow rates and temperatures. Graham Manufacturing Spreadsheet Structure for Ejector Calculations An effective Excel-based design tool typically includes the following sheets or sections: Input Data: Motive steam pressure ( cap P sub p ), entrained vapor pressure ( cap P sub e ), and exit vapor pressure ( cap P sub c Ejector Sketch/Geometry: Values for cap A sub 1 (nozzle throat area), cap A sub 2 (nozzle outlet area), and cap A sub 3 (ejector throat area). Area Ratios: Resources and Technical Guides Scribd Spreadsheet Guide:
A converging-diverging nozzle where the motive fluid expands to high velocity, creating a low-pressure zone. Suction Chamber:
can be used to iteratively find the friction factor or optimal flow rate based on the Darcy-Weisbach or Colebrook-White equations. Resources and Technical Guides Scribd Spreadsheet Guide: