Excel calculation sheet for rating of a spray tower scrubber
Verify that the calculated liquid flow rate falls within the packing manufacturer's recommended wetting range (typically
To design the scrubber vessel and downstream equipment (fans, stacks), all volumetric flow rates must be calculated at this saturation state, not the hot inlet state. Key Governing Equations
Set up your iteration columns to calculate the difference between heat lost by the gas and heat gained by the liquid evaporation: Excel Formula / Logic Tascap T sub a s end-sub Guestimate values or step increments (e.g., E Vapor Pressure ( Pvcap P sub v =10^(8.07131 - (1730.63 / (D4 + 233.426))) F Saturated Humidity ( Yascap Y sub a s end-sub scrubber design calculation excel hot
: Go to Data ➔ What-If Analysis ➔ Goal Seek . Set the Residual Error cell to 0 by changing the Trial Tascap T sub a s end-sub
Wet scrubbers are critical components in industrial pollution control, designed to remove particulates, hazardous gases, and vapors from exhaust streams. Among the various types, packed bed scrubbers are highly favored for gas absorption due to their high efficiency and relatively low pressure drop.
), operating temperature, pressure, molecular weight, and initial contaminant concentration. Excel calculation sheet for rating of a spray
High-temperature scrubbers often require materials with good creep resistance and oxidation resistance:
Hot gas scrubber design requires accounting for several temperature‑dependent changes:
This article provides a deep dive into the rigorous calculations required for and how to structure an Excel workbook that moves beyond static equations to dynamic, iterative solvers. Among the various types, packed bed scrubbers are
) are commonly used to find the required packing depth for your target removal efficiency. Standard Target: removal efficiency. Hydraulic Performance (Pressure Drop)
For a , the increased volumetric flow rate directly leads to a larger required vessel diameter unless cooling (evaporative quenching) is applied before the main scrubbing stage.
where G = gas mass flux and L = liquid mass flux.