Scrubber Design Calculation Excel Hot -

A more robust Excel formula using the : $$ \Delta P \approx \fracu_t^2 \rho_g A_t^0.1331270 \times \left( L/G \right) $$ (Note: Ensure consistent units: Pa or in. w.c.)

By building or purchasing an Excel tool that solves the adiabatic energy balance, corrects gas viscosity for temperature, and uses saturated gas volume for velocity calculations, you move from guessing to engineering.

Scrubber Design Calculation Excel Sheets for Hot Gas Applications

D = √(4 * Qg / (π * Vg))

Create 4 tabs in your workbook: Input Data , Gas Properties , Column Sizing , Pressure Drop , and Water Balance .

Engineers should consider:

Always base your tower diameter on the gas flow rate at actual operating conditions within the tower, not at standard conditions (STP or Normal conditions). scrubber design calculation excel hot

The Cunningham correction factor, especially relevant for high‑temperature gases, incorporates gas temperature:

where R is the gas constant (8.314 J/mol·K).

Verify that the calculated liquid flow rate falls within the packing manufacturer's recommended wetting range (typically A more robust Excel formula using the :

| Parameter | Temperature Effect | Design Implication | |---|---|---| | Gas density | Decreases (ρ ∝ 1/T) | Lower pressure drop for same velocity; larger vessel required | | Gas viscosity | Increases (T^0.67–1.0) | Reduced particle collection efficiency | | Solubility | Generally decreases | Higher liquid flow rates needed | | Evaporation rate | Increases | Water makeup requirements increase | | Material strength | Decreases at high T | Thicker vessel walls or special alloys |

ΔP (in. WC) = 0.004 * vt^2 * (L/G)^0.3

Designing a for hot gas streams—such as flue gas from industrial combustion—requires balancing mass transfer with significant thermal changes. The following guide outlines the core design calculations, specifically tailored for an Excel-based implementation, focusing on the unique challenges of "hot" inlet gases. Core Scrubber Design Process Engineers should consider: Always base your tower diameter