Ejector Design Calculation — Xls Fixed

"You actually fixed it," the technician said, looking at the printout of the spreadsheet.

= (Dd / Dt)^2

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: Calculate the ejector's performance parameters, including efficiency, using the entrainment ratio, compression ratio, and other design conditions.

| Parameter | Symbol | Unit | Cell Reference (Example) | Typical Value | | :--- | :---: | :---: | :---: | :---: | | | $P_m$ | bar (abs) | B2 | 10 | | Suction Fluid Pressure | $P_s$ | bar (abs) | B3 | 1 | | Discharge Pressure | $P_d$ | bar (abs) | B4 | 2 | | Motive Fluid Temp | $T_m$ | K | B5 | 300 | | Suction Fluid Temp | $T_s$ | K | B6 | 300 | | Molecular Wt (Motive) | $M_m$ | kg/kmol | B7 | 28 (Air/N2) | | Molecular Wt (Suction) | $M_s$ | kg/kmol | B8 | 28 | | Specific Heat Ratio ($k$) | $k$ | - | B9 | 1.4 | | Entrainment Ratio (Target) | $\omega$ | - | B10 | 0.5 (Mass ratio Suction/Motive) | "You actually fixed it," the technician said, looking

Issue 2: Negative Numbers Under Square Roots (Isentropic Expansion Formulas)

Instead of manually typing steam properties, integrate a fixed VBA macro or an Add-in (like CoolProp or an IAPWS-IF97 steam table library) into Excel. If you share with third parties, their policies apply

Motive Fluid (High P) ---> [ Nozzle ] \ Suction Fluid (Low P) ---> [ Mixing Chamber ] ---> [ Diffuser ] ---> Discharge (Med P) The device consists of three critical geometric components: