Calculators
Vertical and horizontal KO drum sizing by the Souders-Brown equation, plus liquid hold-up / surge volume and total T-T height or length. Per GPSA Sec 7, API RP 14E, Branan Ch.4.
References: GPSA Engineering Data Book 14th ed. Sec 7 (Separators & Filters); API RP 14E; API Std 521; Branan, Rules of Thumb for Chemical Engineers 5th ed., Ch.4. Souders-Brown: Vt = K√((ρL−ρV)/ρV). K factors (GPSA): 0.35 mesh-pad vertical <100 psig; 0.30 at 100–250 psig (−0.01 per 100 psi); 0.40 horizontal mesh pad; 0.21 glycol/amine contactor (foaming); 0.27 compressor suction scrubber (API 14E); halve for foaming service.
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