Gas Ejector Design Calculation Xls Repack -

To build an effective calculation sheet, you need the following inputs:

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| Output | Value | |--------|-------| | Critical pressure ratio | 0.528 | | Motive gas velocity | ~450 m/s | | Nozzle throat diameter | 6.2 mm | | Entrainment ratio | 0.36 | | Suction mass flow | 0.18 kg/s | | Mixing throat diameter | 12.4 mm | | Ejector efficiency (estimated) | 28% | To build an effective calculation sheet, you need

[ r_cr = \left(\frac2\gamma_m + 1\right)^\frac\gamma_m\gamma_m - 1 ] A gas ejector (or jet pump) uses a

Before diving into the spreadsheet cells, it is vital to understand the physics that the spreadsheet is calculating. A gas ejector (or jet pump) uses a high-pressure motive fluid (gas or steam) to entrain and compress a lower-pressure suction fluid.

to an intermediate discharge pressure. The design calculation for a gas ejector is typically performed using a 1-D thermodynamic model, which can be implemented in Excel (XLS) to determine geometry and performance. ILF Consulting Engineers Core Design Components An ejector consists of four primary functional sections: Motive Nozzle: Expands high-pressure gas to high velocity. Suction Chamber: Where the low-pressure gas enters. Mixing Section: Where motive and suction streams combine. Converts kinetic energy back into pressure. ScienceDirect.com Key Performance Metrics