Venturi Scrubber Design: Calculation Xls |best|

: Use a psychrometric chart to find the saturation temperature ( Tsatcap T sub s a t end-sub ) and humidity ( Hsatcap H sub s a t end-sub

Convert gas flow to actual conditions – already actual. Step 2: Guess throat velocity = 80 m/s. Step 3: Throat area = 10,000 / (3600 × 80) = 0.0347 m² → throat diameter = 210 mm. Step 4: Compute ΔP = 0.00018 × 80² × 1000 ≈ 1152 Pa (acceptable). Step 5: Compute droplet diameter D_drop = approx 150 µm. Step 6: Compute Stokes number = 0.21 → interception parameter → η total = 97.5% (slightly below 98%). Step 7: Use Goal Seek in Excel to find v_t = 84 m/s yields η = 98.1%. Step 8: Recalculate throat area and ΔP. venturi scrubber design calculation xls

| Parameter | Value | Formula (Excel cell) | |-----------|-------|----------------------| | Q_g (m³/h) | 5000 | Input | | v_t (m/s) | 90 | Input | | A_t (m²) | 0.01543 | =Q_g/3600/v_t | | D_t (mm) | 140 | =SQRT(4 A_t/PI()) 1000 | | L/G (L/m³) | 1.5 | Input | | ΔP (kPa) | 1.89 | =0.0025 L/G v_t^2 | | d_p (μm) | 2.0 | Input | | η (%) | 93.4 | =1-EXP(-...formula...) | : Use a psychrometric chart to find the

Scrubbing liquid is injected at the throat or just upstream of it. The high-velocity gas atomizes the liquid into fine droplets. Particulates impact these droplets and are captured, later being separated in an entrainment separator. Step 4: Compute ΔP = 0

In the realm of industrial air pollution control, the stands as a workhorse for removing particulate matter (PM) and gaseous pollutants from high-temperature, high-humidity gas streams. From chemical plants and steel mills to pharmaceutical dryers and biomass boilers, the venturi scrubber’s ability to handle sticky, corrosive, or explosive dusts is unmatched.

[ d_pc = \left[ \frac9 \mu_g D_d2 \rho_p v_t \right]^0.5 \times \left( \frac1f \right)^0.5 ]

[ Q_l = (L/G) \times Q_g ]