Ejector Design Calculation Xls Fixed ((hot)) Jun 2026

Ejectors, also known as jet pumps or ejector pumps, are devices that use a high-pressure fluid or gas to create a low-pressure area, which in turn induces the flow of a secondary fluid or gas. The design of an ejector involves several key parameters, including:

Real-world diffusers aren't perfect. Apply an efficiency coefficient (usually 0.65 to 0.80) to your pressure recovery calculations. Step 4: Check for Critical Flow Ensure the discharge pressure ( Pdcap P sub d

Be cautious. Many websites offer "free ejector design xls" but include broken links or trial-limited macros. For a genuinely file:

Use VBA macros to pull steam properties automatically so you don't have to input them manually for every pressure change. ejector design calculation xls fixed

A diverging section that converts the kinetic energy of the mixture back into pressure (potential energy) for discharge. Essential Design Parameters

Identify if the flow is choked (typically ) or non-choked ( ). Different empirical constants apply to each state. Calculate Entrainment Ratio (

The section where the high-velocity primary fluid and lower-velocity secondary fluid mix. Throat Section: Ejectors, also known as jet pumps or ejector

): The average molecular weight of the process gas mixture, which dictates the entrainment ratio. Discharge Properties Discharge Pressure ( Pdcap P sub d

= (Dd / Dt)^2

Calculate Mach numbers at the nozzle exit, mixing tube, and diffuser. Compute the physical diameters ( ) for the throat, mixing section, and discharge. Tab 4: Performance Curve Generator Step 4: Check for Critical Flow Ensure the

Excel throws a circular reference warning, or the mixture velocity loops infinitely.