The gas velocity increases, accelerating to high speeds ( ) as the cross-section narrows.
Adjust input parameters until the pressure drop and efficiency meet the desired specifications. Conclusion
To facilitate the design calculation process, XLS (Excel) can be used to create a spreadsheet that automates the calculations. The following steps outline the general procedure for performing venturi scrubber design calculations using XLS:
) generated by the gas stream shear forces can be estimated using the Boll correlation:
): Water is the standard baseline fluid, but chemical scrubbing liquors deviate based on salt loading and temperature. 2. Venturi Geometry & Throat Sizing venturi scrubber design calculation xls upd
At_m2 = Qg_m3s / vt
You can create a robust design tool by setting up an Excel sheet with the following columns and formulas.
An efficient tool must incorporate several foundational engineering formulas: Gas Velocity in Throat ( Vtcap V sub t ):
Determining the saturated gas flow rate based on inlet temperature and moisture content. Available Spreadsheet Resources The gas velocity increases, accelerating to high speeds
| Design Parameter | Calculated Value | | :--- | :--- | | Throat Gas Velocity, vt | X m/s | | Throat Cross-Sectional Area, At | X m² | | Throat Diameter, dT | X m | | Liquid-to-Gas Ratio, L/G | X L/m³ | | Pressure Drop, ΔP | X Pa (X in H₂O) | | Droplet Size, dl | X μm | | Inertial Impaction Parameter, ψ | X | | Collection Efficiency, η | X % | | Fan Power Requirement | X kW |
An updated design spreadsheet allows engineers to quickly run parametric iterations to balance capital costs against operating costs: High Vtcap V sub t
The design of a venturi scrubber involves several key considerations, including:
throat_height_m = SQRT( At_m2 / AR ) throat_width_m = throat_height_m * AR The following steps outline the general procedure for
Excel Formula Example for Throat Diameter: =2*SQRT(A_throat/PI()) Tab 3: Performance & Pressure Drop and fluid power requirements.
Would you like me to provide (without the file) so you can build or update your own Venturi scrubber calculator from scratch?
). Liquid is injected here, where extreme shear forces atomize it into microscopic droplets.
A key part of your spreadsheet is balancing efficiency with energy costs. Use the : ΔP = (1.5 * vg² * ρg * t) / (dT) , where ΔP is in Pa, vg is throat gas velocity (m/s), ρg is gas density (kg/m³), t is throat length (m), and dT is throat diameter (m).
