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1 i <br /> Vapor Extraction System Sample Calculations <br /> Moore Petroleum,Inc, 14800 W Frontage Road,Manteca,CA <br /> The standardized conversion is accomplished through the use of the ideal gas law relationship <br /> rt • t _ r2 • 2 <br />' T T <br /> where, <br /> pi influent pressure, 13 9 psis <br /> Vi = influent flow rate, 45 CFM <br />' Tt influent temperature, 548 R <br /> P2 standard atmospheric pressure, 14 7 psia <br /> V2 = influent standardized flow rate, in SCFM <br />' Tz = standard room temperature, 537 R <br /> The preceding equation may be solved for V2, which will be the corresponding influent flow rate <br /> in SCFM <br /> V = pi V1 12 13 9psia 45CFM 537R = 41 SCFM <br /> 2 T, p2 548P 14 7psia <br />' Therefore, the influent flow rate is at 41 SCFM <br /> 1 <br />