The efficiency of removing a specific particle size is calculated using the Johnstone equation:
By incorporating these core models, you can develop an "upd" Excel tool that moves beyond basic calculations to an advanced design suite. This approach allows for better design optimization, scenario analysis, and an understanding of scrubber performance. Visit Cheresources.com or search for resources from companies like MDSJ to find inspiration and templates for creating a powerful, customized venturi scrubber design spreadsheet.
A professional spreadsheet is organized into the following :
): Calculated using the Ideal Gas Law based on operating temperature ( Tgcap T sub g ) and pressure ( Pgcap P sub g Temperature-dependent dynamic viscosity ( Particle Density ( ρprho sub p ): Density of the target dust particulate ( kg/m3kg/m cubed Liquid-to-Gas Ratio ( venturi scrubber design calculation xls upd
I can provide tailored formulas or step-by-step guidance for those specific parameters. Share public link
To implement these calculations in an Excel file ( .xls / .xlsx ), utilize the following cell mapping logic: Excel Cell Formula Example Description =Q_g / v_t Computes required area from targeted velocity. Throat Diameter ( Dtcap D sub t ) =SQRT((4 * A_t) / PI()) For cylindrical venturi geometry configurations. Pressure Drop ( ) =0.00005 * (v_t^2) * rho_g * (L_G_ratio) Calvert formula implementation for system fan sizing. Droplet Size ( )
Let's walk through a typical case: – 50,000 ACFM, 5 g/m³ inlet loading, target <50 mg/Nm³. The efficiency of removing a specific particle size
Calculate the throat diameter to ensure appropriate velocity for target particle removal.
psi equals open paren the fraction with numerator l n open paren 1 minus eta close paren and denominator k center dot cap R end-fraction close paren squared : Correlation coefficient (typically 0.1 to 0.2). : Liquid-to-gas ratio ( Calculate Throat Velocity (
Venturi Scrubber Design Calculation XLS: Ultimate Engineering Guide & Spreadsheet Architecture A professional spreadsheet is organized into the following
Pressure drop is the single most critical factor determining the operating cost (fan power) and collection efficiency of the Venturi. The is widely accepted for calculating pressure drop:
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