Venturi Scrubber Design Calculation Xls Upd ((new)) Jun 2026

[Tab 1: Input Data] ---> [Tab 2: Process Calculations] ---> [Tab 3: Dimensions & Output] Step I: Input Parameters (User Entries) : Inlet flow rate ( Qincap Q sub i n end-sub ), temperature ( ), pressure ( ), moisture content ( ), particle size distribution ( ), and gas density ( ρgrho sub g Liquid Properties : Water flow rate ( Qlcap Q sub l ), temperature, density ( ρlrho sub l ), and surface tension ( Step II: Geometry and Sizing Output Converging Section : Typically designed with a 25∘25 raised to the composed with power 28∘28 raised to the composed with power inclusion angle to accelerate gas smoothly.

. High-temperature streams require evaporative saturation calculations. Essential for determining localized gas density ( ρgrho sub g ) via the ideal gas law:

The gas velocity increases, accelerating to high speeds ( ) as the cross-section narrows. venturi scrubber design calculation xls upd

Designate explicit cells for user entry. Color-code these cells (e.g., light blue for inputs). Parameter Description Typical Units Gas Volumetric Flow Rate (Standard) Qstdcap Q sub s t d end-sub Exhaust Gas Temperature Tgcap T sub g ∘Craised to the composed with power C ∘Fraised to the composed with power F Gas Moisture Content Target Particle Density ρprho sub p kg/m3kg/m cubed g/cm3g/cm cubed Mass Mean Particle Diameter d50d sub 50 Liquid-to-Gas Ratio L/m3L/m cubed gal/1000 ft3gal/1000 ft cubed Tab 2: Gas Density & Volume Correction Calculations

= Cunningham slip correction factor (crucial for sub-micron particles) ρprho sub p = Particle density ( = Aerodynamic particle diameter ( μgmu sub g = Gas viscosity ( Step 5: Fractional Efficiency ( [Tab 1: Input Data] ---> [Tab 2: Process

dd=585vgσρl+597(μlσ⋅ρl)0.45(1000⋅QlQg)1.5d sub d equals the fraction with numerator 585 and denominator v sub g end-fraction the square root of the fraction with numerator sigma and denominator rho sub l end-fraction end-root plus 597 open paren the fraction with numerator mu sub l and denominator the square root of sigma center dot rho sub l end-root end-fraction close paren to the 0.45 power open paren 1000 center dot the fraction with numerator cap Q sub l and denominator cap Q sub g end-fraction close paren to the 1.5 power = Sauter mean droplet diameter ( = Liquid surface tension ( dyn/cmdyn/cm ρlrho sub l = Liquid density ( g/cm3g/cm cubed μlmu sub l = Liquid viscosity ( poisepoise = Liquid-to-gas ratio ( C. Pressure Drop Calculation ( ΔPcap delta cap P

ψ=Cdp2ρpvt9μgdlpsi equals the fraction with numerator cap C d sub p squared rho sub p v sub t and denominator 9 mu sub g d sub l end-fraction Essential for determining localized gas density ( ρgrho

Where k is the empirical constant. The spreadsheet allows users to fit k based on dust type (fly ash: k≈0.15, silica: k≈0.22, oil-fired soot: k≈0.09).

Decelerates the gas stream, allowing for pressure recovery and further particle-droplet contact.

Typically ranges from 7 to 20 gallons per 1,000 ACF. Throat Velocity ( Vtcap V sub t ): Generally between 150 and 450 feet per second. Step-by-Step Calculation Methodology 1. Calculating Gas Velocity

You can then use these functions directly in your spreadsheet: =VenturiPressureDrop(300, 5) or =VenturiEfficiency(5, 8, 300, 0.075, 62.4)