Scrubber Design Calculation Excel Hot [2021]

| 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 |

Qsat=Qin⋅TsatTin⋅PinPsat+Volume of Added Water Vaporcap Q sub s a t end-sub equals cap Q sub i n end-sub center dot the fraction with numerator cap T sub s a t end-sub and denominator cap T sub i n end-sub end-fraction center dot the fraction with numerator cap P sub i n end-sub and denominator cap P sub s a t end-sub end-fraction plus Volume of Added Water Vapor

This is your data entry zone. Group your inputs clearly using distinct cell coloring for user-entered data versus calculated values. Inlet temperature ( ∘Craised to the composed with power C ), mass flow rate ( ), molecular weight, and pollutant concentration ( mg/m3mg/m cubed

Here's an example Excel template that you can use to perform scrubber design calculations: scrubber design calculation excel hot

This section calculates the structural dimensions of the vertical packed tower.

| | | | --- | --- | | C_in (ppm) | 100 | | η | 0.9 | | C_out (ppm) | =(1-0.9)*100 | =10 ppm |

Packed bed scrubbers are the workhorses of industrial air pollution control, tasked with removing corrosive gases, particulates, and volatile organic compounds (VOCs) from exhaust streams. While sophisticated simulation software exists, Microsoft Excel remains the industry standard for preliminary sizing, vendor verification, and rapid troubleshooting. | Parameter | Temperature Effect | Design Implication

Your Excel workbook should be divided into sequential tabs or calculation blocks to mirror the physical process. Step 1: Inlet Gas Properties & Quench Calculations

For gas absorption, packed bed towers are standard. The cross-sectional area ( ) is determined based on the gas velocity ( Vgcap V sub g

Double-check that your Packing Factor ( Fpcap F sub p | | | | --- | --- | | C_in (ppm) | 100 | | η | 0

where the Residual Error is zero, use that verified temperature to drive the structural sizing dimensions below: Objective Excel Formula Calculated using ideal gas laws at the newly solved Tascap T sub a s end-sub Tower Cross-Sectional Area =Saturated_Volume_m3_s / Target_Gas_Velocity_m_s Vessel Internal Diameter =SQRT((4 * Area_Cell) / PI()) Evaporative Water Makeup Rate =$B$5 * (Saturated_Humidity_Cell - $B$6) 4. Operational Risks with Hot Gases

Calculate the water required to cool the gas.

): Usually designed at 60% to 80% of the flooding velocity, typically between 1.5 to 2.5 m/s.