Ejector Design Calculation Using Excel Spreadsheets (.xls)

1. Introduction

Ejectors (also called jet pumps or eductors) are fluid handling devices that use the Venturi effect to convert pressure energy of a motive fluid into velocity energy, creating a vacuum that draws in a suction fluid. They are widely used in chemical plants, oil refineries, HVAC systems, and marine applications.

This paper provides critical semi-empirical correlations for calculating the entrainment ratio (

Use Excel’s Data Validation for dropdowns (e.g., fluid type) and Conditional Formatting to highlight missing inputs.

Worksheet 1: Input Panel

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