This sheet contains the formulas for the engineering equations outlined in Section 2.

Vd=Vf×Safety Factorcap V sub d equals cap V sub f cross Safety Factor Step D: Compute Cross-Sectional Area ( ) and Diameter (

NTU=ln(y1−m⋅x2y2−m⋅x2⋅(1−S)+S)1−Scap N cap T cap U equals the fraction with numerator l n open paren the fraction with numerator y sub 1 minus m center dot x sub 2 and denominator y sub 2 minus m center dot x sub 2 end-fraction center dot open paren 1 minus cap S close paren plus cap S close paren and denominator 1 minus cap S end-fraction (Where is the slope of the equilibrium line, is the inlet liquid concentration, and is the stripping factor).

In your Excel spreadsheet, build a . Use data validation drop-down lists ( Data > Data Validation > List ) on your main calculation page so users can select a packing type (e.g., "2-inch Polypropylene Pall Rings"). Use a VLOOKUP or XLOOKUP formula to automatically retrieve the corresponding Packing Factor ( Fpcap F sub p ) into your diameter and pressure drop equations. Step 5: Calculate Tower Height (Packed Bed Depth)

Represents the difficulty of the separation.

Set up a conditional formatting rule on your operational velocity cell. If the design velocity exceeds 80% of the calculated flooding velocity, highlight the cell in flashing red to warn the user of potential column instability.

: Define the liquid solvent flow rate ( ), density ( ρLrho sub cap L ), viscosity ( μLmu sub cap L ), and the entering pollutant concentration (

This is where Excel's mathematical capabilities shine. The diameter of a packed scrubber depends heavily on the flooding velocity. The classic method relies on the correlation. The x-axis parameter is calculated as:

Master Scrubber Design Calculations in Excel Chemical engineers rely heavily on spreadsheets to size packed columns, calculate gas-liquid contact efficiency, and ensure environmental compliance. A well-structured spreadsheet turns complex, iterative thermodynamic equations into a repeatable workflow.