Ejector Design Calculation Xls [ RECOMMENDED × HOW-TO ]

Ejector design calculations in Excel focus on determining the Entrainment Ratio Area Ratios

1. Operating Pressures

• Motive Pressure ($P_m$): The pressure of the high-pressure fluid driving the ejector.
• Suction Pressure ($P_s$): The pressure of the low-pressure fluid you wish to entrain.
• Discharge Pressure ($P_d$): The target discharge pressure downstream of the ejector.

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Worksheet 3: Nozzle Sizing

• Uses critical flow equations for choked conditions.
• Calculates throat diameter from given motive flow.