Scrubber Design Calculation Excel Hot Direct
Create a dynamic named range that pulls T_out from your adiabatic solver. Your velocity (V = Q_actual / Cross-sectional area) must use the average of Q_inlet and Q_outlet for accurate pressure drop calculations.
): Calculates pressure drop per meter of packing using modified Eckert correlations.
) required to meet emission targets. It relies on the Number of Transfer Units (NTU) and the Height of a Transfer Unit (HTU) method: Z=HTU×NTUcap Z equals HTU cross NTU Based on inlet ( yiny sub in end-sub ) and outlet ( youty sub out end-sub ) gas concentrations:
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.
When hot gas enters a wet scrubber, it immediately contacts the scrubbing liquid (typically water or an aqueous chemical solution). This triggers an instantaneous, simultaneous heat and mass transfer process known as . Adiabatic Saturation Temperature scrubber design calculation excel hot
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. Using Excel allows for iterative modeling of these complex thermal and chemical interactions. www.mchip.net Core Design Parameters
A=Qactual,outVdesigncap A equals the fraction with numerator cap Q sub a c t u a l comma o u t end-sub and denominator cap V sub d e s i g n end-sub end-fraction
: The inner width of the column required to maintain stable, non-flooding gas velocities. Create a dynamic named range that pulls T_out
Create an Excel template with the following columns:
), Inlet Temperature (°C), Gas Composition, Target Pollutant Concentration.
High inlet temperatures require specialized materials (e.g., alloy stees, specialized FRP, or refractory linings) before the quench zone. 2. Key Design Steps and Excel Formulas
Display the final mechanical and operational specifications clearly in a non-editable results block. Calculated Column Diameter ( Total Packbed Height ( Operating Pressure Drop ( per meter of packing) Minimum Required Liquid Pump Rate ( L/minL/min 3. Optimizing for "Hot" Gas Stream Applications ) required to meet emission targets
: Map cells like B16 as Tower_Diameter and B22 as Packing_Height to keep formulas clean and readable.
Desired outlet concentration or percentage removal efficiency (e.g., 99.9%). Packing Factors: Packing factor ( Fpcap F sub p ), specific surface area ( ), and critical surface tension of the material. Section 2: Fluid Dynamics and Flooding Constants
η = (C_in - C_out) / C_in
Dedicate the first sheet or top section to user inputs. Use distinct cell shading (like light blue) to mark these as editable fields. Inlet flow rate (
The scrubber height (H) can be calculated using the following formula: