Document pmV4ZbBbjNbL7EDoJ42ZJ45Jd

r i RELIEF VALVE DISCHARGE CALCULATION D-400 REACTOR 6:15 P. M. - JANUARY 19, 1980 FROM: Farris Relief Valve Catolog No. FE336, Page 3.3 24.3 Vi.25 (PX-P2) Kp Kg Ku Where: A = Orifice Area (In.^), Q Orifice = 11.05 In.^ Vl = Liquid capacity in U.S. gallons per minute. Pi = Set pressure at inlet, psig = 185 P2 = Back pressure at outlet, psig = 0 Kp = Overpressure sizing factor, 1% overpressure (From: Farris Book Page 3.7) = 0.07. Kg = Sizing factor for specific gravity Kg = V"G G = Specific Gravity Ku = Viscosity correction factor from curve on Page 3.8 = 1.0 Temperature of reactor at time of release = 109F. Reactor contained 34% Vinyl Chloride by volume. Specific Gravity of water @ 109F = 0.99. Specific Gravity of Vinyl Chloride @ 109F = 0.87. Specific Gravity of Mixture = (0.34)(0.87) + (0.66) (0.99) = 0.94 DTH 000084601 1 Ks = v 0.94 - 1.03 Then: VL = (11-05) (24.3) V 1.25(185-0) (0.07) (1.03):(1.0) = 294 gallons per minute total discharge. @ 34% Vinyl Chloride Discharge of Vinyl Chloride = (0.34)(294) = 100 gallons per minute. or 725 #'s VCM/Minute Vinyl discharged in two seconds: = 725 #'s VCM X 1 Minute X 2 Seconds = 24 #'s VCM Min. 60 Seconds DTH 000084602