This article focuses on building a powerful, transparent, and reusable Excel spreadsheet for . The methodology is primarily applicable to gas-gas and steam-gas ejectors, which are common in the chemical, petrochemical, and power industries.
) and the velocity of the fluid at the entry of the diffuser. 4. Step-by-Step Calculation Workbook Logic
Steam ejectors (or eductors) are crucial components in process industries, offering a reliable, low-maintenance solution for creating vacuums, mixing fluids, or handling gases without moving parts. Designing an efficient ejector, however, requires complex thermodynamic calculations. Utilizing an spreadsheet is the most efficient way to manage these calculations, optimize geometry, and ensure system performance. ejector design calculation xls
| Component | Key Dimension | Calculated Value | | :--- | :--- | :--- | | Motive Nozzle | Throat Diameter ((D_t)) | 4.33 mm | | Mixing Section | Diameter ((D_2)) | 23.7 mm | | Area Ratio | ((A_2 / A_t)) | 30 | | Performance | Entrainment Ratio ((Er)) | 0.20 |
If you are building or looking for a design spreadsheet, ensure it includes: This article focuses on building a powerful, transparent,
Use built-in polynomial equations or look-up tables to determine gas constants, enthalpies, and specific heat ratios.
An ejector uses a high-pressure entraining fluid (motive) to lift a low-pressure fluid (suction) to an intermediate discharge pressure. The device relies entirely on the conversion of pressure energy into kinetic energy. Utilizing an spreadsheet is the most efficient way
Store thermodynamic constants and molecular weights here to feed your formulas via VLOOKUP or XLOOKUP . Water/Steam Molecular Weight: 18.02 Air Molecular Weight: 28.97 Universal Gas Constant ( ): 8314.46 Tab 3: Calculations & Dimensions Output