When process engineers talk about "hot" in the context of scrubber design, they are not just referring to a minor temperature increase. High-temperature gases, typically exceeding 150°C (300°F) and often reaching 1,000°C or more, fundamentally change the design approach in several critical ways:
To build a robust tool for the keyword intent, your Excel sheet must include these four modules.
): Use a psychrometric chart or humidity balance to find the temperature at which the gas becomes saturated with moisture.
Highlight cells in red if the flooding percentage exceeds 80%. scrubber design calculation excel hot
⚠️ : Always use the pre-formatted input cells (usually blue) for your data and leave the output cells (usually green or white) for the formulas, ensuring data integrity.
When finalizing your engineering calculation sheet, build safety margins and validation checks to account for these real-world hot gas behaviors:
Tower diameter holds operational gas velocity safely within the non-flooding window ( When process engineers talk about "hot" in the
Ensure the scrubber operates safely without weeping or flooding if the hot gas flow drops to 50% capacity.
Never hardcode packing factors or densities directly into your formulas. Keep them referenced to independent cells so you can swap out packing sizes or gas compositions without breaking the sheet logic.
): Calculate the mass of water vapor per mass of dry gas using partial pressures: Highlight cells in red if the flooding percentage
where:
Need a template? Look for downloadable workbooks that include VBA macros for iterative solving, as standard Excel formulas cannot handle the circular logic required for true hot gas adiabatic saturation.
To design a functional packed bed scrubber for hot gases, follow these steps: Gas Saturation & Flow Correction
Use the Generalized Pressure Drop Correlation (GPDC) . Aim for an operating velocity between of the flooding velocity. Find Cross-Sectional Area ( Ascap A sub s ):