Venturi scrubbers, in particular, can have very high pressure drops. Make sure your fan or blower is sized appropriately.
For packed scrubbers, calculate the number of transfer units (NTU) and the required packed height. For venturi scrubbers, calculate the collection efficiency and throat dimensions.
): Total square feet of surface area per cubic foot of packing ( 2. Step-by-Step Design Calculations for Excel scrubber design calculation excel best
D=4⋅Aπcap D equals the square root of the fraction with numerator 4 center dot cap A and denominator pi end-fraction end-root Step 3: Calculate the Packing Height (Mass Transfer)
Sheet name: Scrubber_Calc
Customization: You can easily add "What-If" scenarios to see how the design reacts to a 20% increase in gas flow.
The height of the packed bed depends on how easily the pollutant transfers from the gas phase to the liquid phase. This is calculated using the Number of Transfer Units (NTU) and the Height of a Transfer Unit (HTU). Venturi scrubbers, in particular, can have very high
Collect all input parameters regarding the waste gas stream and environmental regulations. Gas volumetric flow rate ( Vgcap V sub g Inlet gas temperature ( Tincap T sub i n end-sub ) and operating pressure ( Contaminant chemical identity and inlet concentration ( yiny sub i n end-sub , ppm or mole fraction) Target outlet concentration ( youty sub o u t end-sub ) or required removal efficiency ( , typically 95% to 99.9%) Step 2: Solvent Selection and Liquid-to-Gas (L/G) Ratio
Are you designing a standard or a cross-flow/venturi style system? Share public link The height of the packed bed depends on
where T g is inlet gas temperature in Kelvin and d p is particle diameter.
| Parameter | Value | Unit | | --- | --- | --- | | Gas flow rate | 10,000 | m³/h | | Liquid flow rate | 5 | m³/h | | Scrubber diameter | 1.5 | m | | Scrubber height | 4.5 | m | | Packing volume | 3.5 | m³ | | Pressure drop | 150 | Pa |