Ejector Design Calculation Xls | Safe & Secure

ARM = 0.98 * (CR)^(-0.5) * (P_m/P_s)^0.3 ' Approximate – replace with your digitized data

Using momentum balance (implemented in Solver), find that predicted ṁ_s = 195 kg/h → close to 200. Slightly adjust ARM to 12.8.

Here is how the iterative calculation flows in a typical . You would implement this across 10-15 columns per row for a given geometry. ejector design calculation xls

For decades, engineers have relied on specialized software or complex hand calculations. But with the power of , you can create a transparent, flexible, and accurate ejector design calculation spreadsheet (.xls) . This article provides a comprehensive guide to the theory, step-by-step calculations, and the structure of a professional-grade .xls tool.

Dt_ejector = 12.7 * SQRT(12.5) = 44.9 mm ARM = 0

Where: W_s = mass flow of suction fluid, W_m = mass flow of motive fluid

A proper XLS tool must first define the process conditions for both the Motive Fluid (driving force) and the Suction Fluid (entrained load). Motive Pressure ( cap P sub p ) & Temperature ( cap T sub p Typically high-pressure steam. Suction Pressure ( cap P sub e ) & Temperature ( cap T sub s The required vacuum level. Discharge Pressure ( cap P sub c The pressure at the outlet, often directed to a condenser. Entrainment Ratio ( Ratio of suction mass flow ( ) to motive mass flow ( ScienceDirect.com 2. Core Calculation Steps You would implement this across 10-15 columns per

: Calculated using sonic velocity equations for compressible fluids. Nozzle Outlet Area ( cap A sub 2 : Based on the expansion needed to reach suction pressure. Ejector Throat Area ( cap A sub 3