The steam accelerates as the area decreases, reaching sonic velocity (Mach 1) at the nozzle throat.
Using a fixed Excel spreadsheet () template simplifies this complex mathematical process into an efficient, repeatable engineering workflow. 1. Fundamental Principles of Ejector Operation ejector design calculation xls fixed
): The counter-pressure the ejector must overcome, usually determined by downstream atmospheric conditions or condenser performance. 3. Step-by-Step Ejector Design Calculations The steam accelerates as the area decreases, reaching
The mixing chamber design parameters are calculated using the following equations: ejector design calculation xls fixed
): Find the area required to pass the motive steam at sonic speed (choked flow):
): The required amount of steam to drive the system (kg/h or lb/h). Suction Fluid Properties Suction Pressure ( Pscap P sub s
Must be higher than the discharge pressure.
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