ARCHIVED REPORTS_XR0011941 - Laserfiche WebLink

Home Browse Search

COMPUTATION SHEET PROJECT TITLE ARCO Service Station No 6100 PROJECT NO U 6100-16-9 DESCRIPTION Mass Emission rates SHEE-i 2 OF 4 PREP BY Kiran Nagarafu DATE 11/9/2004 CHK BY G Kowtha DATE DATA The following parameters listed below were recorded between October 6, 2004, and November 4, 2004 10/6/2004 10/14/2004 11/4/04 Total system influent air flow velocity(fpm) 8,000 9,600 7,375 Inner diameter of system influent pipe(Inches) 2 323 2 323 2 323 Area of system Influent pipe(ft) 0 029 0 029 0 029 Total system Influent air flow rate' (after dilution) (scfm) 23555 28266 21715 Total effluent air flow rate(scfm) 23555 28266 21715 System influent temperature(°F) 120 145 105 Applied vacuum ("WC) 12 12 13 Influent concentration of GRO(mg/m) 4,700 NS 3,200 System Influent concentration of GRO(mg/m) 1,600 2,000 1,000 Influent concentration of benzene(mg/m) 110 NS 110 System Influent concentration of benzene(mg/m3) 41 44 34 Influent concentration of MTBE(mg/m) <0 50 NS <0 50 System Influent concentration of MTBE (mg/m) <0 50 <2 5 <0 50 Effluent concentration of GRO(mg/m) 57 <50 160 Effluent concentration of benzene(mg/m) <0 50 <0 50 430 Effluent concentration of MTBE(mg/m3) <0 50 <0 50 <0 50 ' Field data sheets record flow rate(inches of water column, units) into the SVE system using a differential pressure guage and phot tube These readings were converted to flow velocity(fpm, units) using Dwyer Chart The air flow velocity in a pipe is converted to air flow rate using the following formula Flow Rate(scfm) =Area of Pipe(ft2)'Velocity(fpm) CALCULATION Since the total system Influent air flow rate is measured on the positive side of the blower, the system influent flowrate Is corrected for temperature only using the formula listed below Temperature Corrected Influent flow rate = System Influent flow rate `{[460 R+68 deg F]/[deg F+460 R]) Temperature corrected system influent flow rate for October 6,2004 21444 acfm Temperature corrected system influent flow rate for October 14, 2004 24669 acfm Temperature corrected system influent flow rate for November 4, 2004 20293 acfm ARCO 6100 Calc Sheets for Oct Nov 2004 fur