check to ensure the gas is properly cooled and saturated before entering the throat. High-solids content in the recirculating liquid must be factored into the viscosity variables to maintain accuracy over time. or a specific VBA macro snippet
According to documentation from Cheresources and Scribd , the spreadsheet processes the following: Throat Velocity (
The key to high efficiency is maximizing the velocity differential between the gas and the atomized liquid droplets, which enhances particle collection. 2. Key Equations in Venturi Scrubber Calculation
Venturi Scrubber Design Calculation: Engineering Principles and Excel Automation venturi scrubber design calculation xls upd
Older spreadsheets often rely on classical models from the 1970s—Johnstone, Calvert, or Yung models. While foundational, they lack:
dd=585vgσρl+597(μlσ⋅ρl)0.45(1000⋅QlQg)1.5d sub d equals the fraction with numerator 585 and denominator v sub g end-fraction the square root of the fraction with numerator sigma and denominator rho sub l end-fraction end-root plus 597 open paren the fraction with numerator mu sub l and denominator the square root of sigma center dot rho sub l end-root end-fraction close paren to the 0.45 power open paren 1000 center dot the fraction with numerator cap Q sub l and denominator cap Q sub g end-fraction close paren to the 1.5 power = Sauter mean droplet diameter ( = Liquid surface tension ( dyn/cmdyn/cm ρlrho sub l = Liquid density ( g/cm3g/cm cubed μlmu sub l = Liquid viscosity ( poisepoise = Liquid-to-gas ratio ( C. Pressure Drop Calculation ( ΔPcap delta cap P
represents the particle size that is collected with 50% efficiency. The correlation typically follows the formula: Stkcap S t k check to ensure the gas is properly cooled
Calculate the throat diameter to ensure appropriate velocity for target particle removal.
To build an Excel-based design tool, follow these sequential steps:
= Cunningham slip correction factor for sub-micron particles. ρprho sub p = Particle density ( g/cm3g/cm cubed = Aerodynamic particle diameter ( μgmu sub g = Gas dynamic viscosity ( = Sauter mean droplet diameter ( ), calculated using the Nukiyama and Tanasawa equation: Pressure Drop Calculation ( ΔPcap delta cap P
Warning alerts if the throat velocity is too low (poor collection) or too high (excessive re-entrainment).
Would you like a or a script template for a specific format (e.g., 10-minute YouTube documentary or Instagram Reel series)?
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