Scrubber Design Calculation Excel Hot //free\\
Hot gases occupy a larger volume than cooled gases. Once you have Tsatcap T sub s a t end-sub
For effective particulate and acid gas removal, typical L/G ratios range from .
The includes:
:
| Resource Name | Source | Key Features | | :--- | :--- | :--- | | | ind-eng-design.blogspot.com | Hydraulic design, mass transfer, HTU correction, diffusion coefficient estimation | | Packed Column Scrubber Design | Joyy via Cheresources.com | Preliminary design for packed column scrubbers | | Absorbers Excel Workbook | Stephen Hall via Eloquens.com | HTU & NTU calculation, packing depth, aligns with "Rules of Thumb" textbook | | Scrubber Design Calculator | GrowMechanical.com | Packed bed sizing, actual flow conversion, pressure drop (Ergun), F-factor check | | Packed Scrubber Design / HETP | Cheresources.com | Packed bed design and HETP (Height Equivalent to a Theoretical Plate) calculations | | General Scrubber Design Sheet | AIMEQUIP | Comprehensive parameters for designing scrubbers for gas stream contaminant removal | | Vent Scrubber Sizing | excelcalcs.com | Sizing a vent scrubber for oil and gas processes | | Wet Scrubber Design Calculator | MDSJ Process | Venturi scrubber pressure drop (Hesketh eq.), efficiency (Johnstone eq.), droplet size | | General Engineering Calcs | Neil Stone via Cheresources.com | A zip file with multiple spreadsheets, including a packed scrubber design |
Qsat=Qdry,sat+Qvapor,satcap Q sub s a t end-sub equals cap Q sub d r y comma s a t end-sub plus cap Q sub v a p o r comma s a t end-sub
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$6) 4. Operational Risks with Hot Gases scrubber design calculation excel hot
Use (Data → What‑If Analysis → Goal Seek) to set the efficiency cell to the target by changing the throat velocity cell. This reverses the usual calculation sequence and is essential when a specific efficiency must be achieved.
): High temperature increases gas volume and enhances evaporation. Concentration of contaminants ( SO2cap S cap O sub 2 HClcap H cap C l , particulate matter). Liquid Flow Rate ( ): Scrubbing liquid (usually water + reagent). Scrubber Diameter ( ): Based on allowable gas velocity (flooding calculation). Packing Height ( ): Based on Transfer Units ( 3. Step-by-Step Calculation Methodology A robust Excel model should follow these steps: Step 1: Physical Properties
Because the gas is hot, the water temperature will rise significantly. A common mistake is assuming the water temperature is constant. In your Excel sheet, add a heat balance on the water loop to compute the outlet water temperature. If the water exceeds 140°F, you risk scaling and reduced gas absorption. Hot gases occupy a larger volume than cooled gases
=0.622 * (E4 / ( (B8 * 7.50062) - E4 )) (7.50062 converts kPa to mmHg) Sensible Heat Lost =$B$5 * $B$7 * ($B$4 - D4) H Latent Heat Gained =$B$5 * (F4 - $B$6) * 2260 (Assumes I Residual Error =G4 - H4 How to Automate the Iteration:
t_r > 3 * t_e for safe operation.