The hum of the plant was usually a comfort to Elias, but today, the caustic scrubber
Designing a scrubber—specifically for gas streams—requires accounting for gas cooling (humidification) before sizing the physical vessel. Most Excel-based guides follow a specific sequence to determine the required tower diameter and height based on mass transfer or particulate removal needs. 1. Pre-Design Step: Humidification (Hot Gas Adjustment)
: Based on the log-mean concentration difference between the inlet and outlet pollutants. Total Height ( ): Safety Factor : For standard designs, adding a scrubber design calculation excel hot
ṁevap=QsensibleΔHvapm dot sub e v a p end-sub equals the fraction with numerator cap Q sub s e n s i b l e end-sub and denominator cap delta cap H sub v a p end-sub end-fraction = Latent heat of vaporization of water ( Step 3: Adjusted Volumetric Flow Rate
Ten minutes later, the alarm fell silent. The plume at the top of the stack turned from a ghost of a haze to invisible, clean air. Elias leaned against the steel railing, the heat of the tower radiating against his back, and smiled. The hum of the plant was usually a
Using this structured layout allows you to create a robust, highly adaptable engineering design spreadsheet that handles both standard and high-temperature wet scrubber sizing calculations with precision.
L/G = Ql / Qg
where Vg is the gas velocity (m/s or ft/s)
Always size your scrubber based on the saturated volumetric flow rate ( Qsatcap Q sub s a t end-sub Pre-Design Step: Humidification (Hot Gas Adjustment) : Based
represents the log-mean driving force of the pollutant reduction: