When hot gas contacts cool scrubbing liquid, rapid quenching can cause:
| | | | --- | --- | | Qg (m³/s) | 1 | | Vg (m/s) | 4 | | D (m) | =SQRT(4*1/(PI()*4)) | =0.89 m |
) into your main calculation sheet based on a dropdown menu selection. Section 3: The Calculation Engine
The scrubber diameter (D) can be calculated using the following formula: scrubber design calculation excel hot
D=4Aπcap D equals the square root of the fraction with numerator 4 cap A and denominator pi end-fraction end-root Step 3: Calculate Height of Packing (Mass Transfer) The height of the packed bed ( ) is calculated using the Number of Transfer Units ( NTUcap N cap T cap U ) and the Height of a Transfer Unit ( HTUcap H cap T cap U
D = √(4 * Qg / (π * Vg))
For gas-phase absorption, the Number of Transfer Units (NTU) method is applied: When hot gas contacts cool scrubbing liquid, rapid
Choose a packing type (e.g., Intalox Saddles, Rosette) and its specific Packing Factor ( Fpcap F sub p ) .
The hum of the plant was usually a comfort to Elias, but today, the caustic scrubber
Excel check: Add a cell that calculates . If > 3-5%, you need blowdown or a bigger pump. If > 3-5%, you need blowdown or a bigger pump
Hot gas applications add layers of complexity—higher volumetric flow rates, reduced collection efficiency due to increased viscosity, and thermal shock risks—but these challenges can be systematically addressed within a well‑constructed Excel framework. By leveraging the equations, tools, and step‑by‑step procedures outlined in this guide, engineers can confidently design scrubber systems that meet regulatory requirements while minimizing energy consumption and lifecycle costs.
If using complex non-linear flooding correlations, write a short VBA macro or use Excel's Goal Seek function to automate the calculation of Gfloodcap G sub f l o o d end-sub Tab 4: Summary & Specification Sheet