) determines both collection efficiency and pressure drop. Select a target velocity based on the desired particle cut-size (typically
This is a critical design parameter.
The droplet diameter is influenced by the liquid's surface tension (σ), its density (ρl), and, most importantly, the relative velocity between the gas and the liquid (vr). A higher gas velocity creates finer droplets and improves collection efficiency.
ρg=P⋅MwR⋅Trho sub g equals the fraction with numerator cap P center dot cap M sub w and denominator cap R center dot cap T end-fraction venturi scrubber design calculation xls upd
Qg_m3s = Qg_m3h / 3600
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The efficiency of removing a specific particle size is calculated using the Johnstone equation: ) determines both collection efficiency and pressure drop
Apply the Johnstone equation:
This is the most complex formula in the sheet. Break it into intermediate named cells:
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. A higher gas velocity creates finer droplets and
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Kp=ρp⋅(vt−vd)⋅(dp)2⋅C9⋅μg⋅d0cap K sub p equals the fraction with numerator rho sub p center dot open paren v sub t minus v sub d close paren center dot open paren d sub p close paren squared center dot cap C and denominator 9 center dot mu sub g center dot d sub 0 end-fraction
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