Venturi Scrubber Design -

After months of research and experimentation, Dr. Venturi developed a novel scrubber design that incorporated a converging-diverging tube, known as a Venturi tube. The design consisted of:

The most widely used correlation: [ \Delta P = \frac\rho_g v_t^22 \cdot \left[ 1 - \left( \fracA_tA_e \right)^2 \right] + f \cdot \fracLG \cdot \rho_g v_t^2 ] Where ( v_t ) = throat velocity, ( L/G ) = liquid-to-gas ratio (L/m³ or kg/kg), ( \rho_g ) = gas density, ( A_t/A_e ) = throat-to-exit area ratio, and ( f ) = empirical friction factor (≈ 0.2–0.5). The first term is gas acceleration loss; the second term is due to droplet friction. venturi scrubber design

| Parameter | Typical Range | Remarks | |-----------|---------------|---------| | Throat velocity | 50–120 m/s | Lower for sticky dust, higher for submicron | | L/G ratio | 0.5–2.5 L/m³ | Higher for hydrophilic particles | | Throat length | 0.3–1.5 m | Longer increases efficiency but ΔP rises | | ΔP | 5–25 kPa | Industrial median: 12 kPa | | Cut diameter (d50) | 0.5–2 µm | Achievable with v_t > 80 m/s | | Pressure recovery | 50–70% | Depends on diffuser angle | After months of research and experimentation, Dr

In the early 1970s, as environmental regulations began to tighten, industries faced increasing pressure to reduce their emissions of pollutants into the atmosphere. One of the most effective ways to control air pollution was through the use of scrubbers, which used a liquid to remove contaminants from gas streams. However, traditional scrubber designs were often inefficient and expensive to operate. The first term is gas acceleration loss; the