Ejector Design Calculation Xls Here
This paper outlines the fundamental mathematical models and design parameters for a Steam Ejector Design Calculation spreadsheet (XLS). It focuses on the 1-D thermodynamic model used to determine the Entrainment Ratio ( and critical geometric dimensions.
Utilizes Excel formulas ( VLOOKUP or XLOOKUP ) linked to a back-end database of common gases (Steam, Air, Natural Gas, CO2). Calculates mixed-stream properties ( Mmixcap M sub mix end-sub kmixk sub mix end-sub Tmixcap T sub mix end-sub ) using mass-weighted averages. Tab 3: Sizing and Geometry Outputs
A professional engineering calculation sheet must be transparent, auditable, and structured logically. Organize your into four core tabs or visual blocks. Block 1: Input Parameters (User Inputs) ejector design calculation xls
: 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
If you are building or looking for a design spreadsheet, ensure it includes: This paper outlines the fundamental mathematical models and
| Name | Description | | :--- | :--- | | | A Visual Basic program that calculates nozzle and mixing diameters based on gas flow rates, pressures, and molecular weights. | | Ejector Dry Air Equivalent (DAE) Calc. | A spreadsheet to convert gas mixtures to a standard DAE value, used for rating ejector capacity. | | Steam Ejector Calculation Notes | A reference document with a semi-empirical equation for the entrainment ratio, based on curve-fitting of experimental data. | | Liquid Ejector (Eductor) Design | A design tool where pivotal dimensions are calculated from specified operating parameters of working and suctioned liquids. |
The relationship between the motive nozzle throat area and the constant-rate mixing section area. Key Features of a Professional Ejector XLS Calculates mixed-stream properties ( Mmixcap M sub mix
| Parameter | Value | Units | | :--- | :--- | :--- | | Motive Steam Flow ((\dotm_p)) | 500 | kg/h | | Motive Steam Pressure ((P_0)) | 10 | bar(a) | | Motive Steam Temperature ((T_0)) | 180 | °C | | Suction Pressure ((P_s)) | 0.1 | bar(a) | | Discharge Pressure ((P_d)) | 1.2 | bar(a) | | Entrained Air Mass Flow ((\dotm_s)) | 100 | kg/h |