Ejector Design Calculation Xls Fixed __exclusive__ -

Steam surface condensers and vacuum systems rely heavily on ejectors (or thermocompressors) to maintain operational efficiency. When dealing with a , the design calculation becomes a precise balancing act between motive fluid pressure, suction requirements, and discharge back-pressure.

A_n = m_m / (ρ_m * V_m)

The nozzle design parameters are calculated using the following equations: ejector design calculation xls fixed

Here, the spreadsheet solves the normal shock wave equations. A fixed XLS uses pre-calculated gas dynamic functions (Prandtl-Meyer, Rayleigh flow) embedded as array formulas, not macros. This ensures that the shock location calculation does not crash when switching from subsonic to supersonic regimes. Steam surface condensers and vacuum systems rely heavily

In supersonic ejectors, "choking" can occur at the nozzle exit AND the mixing throat. A robust calculation sheet must check for Mach 1.0 at both locations. If the spreadsheet ignores choking at the secondary inlet, it will over-predict suction flow capacity. A fixed XLS uses pre-calculated gas dynamic functions

Use conditional formatting to highlight if the Compression Ratio ( ) exceeds stable limits (typically 10:1 for single stage).