Document qk5Zv43bORxzrZdwn5a3M2E6q
RELIEF VALVE DISCHARGE CALCULATION WATER STRIPPING TANK D-9
11:07 A.M. - APRIL 3, 1980
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From: Consolidated Safety Relief Valves Catalog No. 1900B, Page 46
A
Where:
A
= W y/T /~Z
c p nr
= Orifice Area, in.^, P Orifice = 6.38 in.^
W = Relieving Rate, 1b./hr. T = Inlet Relieving Temperature, R = 635R Z = Compressibility Factor, = 1.0 C = Nozzle Gas Constant, page 48, = 307 P = Relieving Pressure, psia = 74.65 psia M = Average Molecular Weight of Vapor = 58.50
Then:
w = (6.38) (307) (74.65) \/ 58.50 \/ 635 x /7.0
W = 44,380 lb./hr. Vapor Vapor is 0.972 Weight Percent Vinyl Chloride Discharge Rate of Vinyl Chloride = 44,380 x 0.972
= 43,140 lb./hr. Vinyl Chloride Discharged in 15 Seconds
1b` x ^ h/'r x 15 sec. = 180 1b,
hr. 3600 sec.
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DTH 000115606