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COMPUTATION SHEET <br /> PROJECT TITLE ARCO Service Station No 6100 PROJECT NO U 6100-16 9 <br /> DESCRIPTION Mass Emission rates SHEET 2 OF 5 <br /> PREP BY Kiran Nagaralu DATE 5/6/2004 CHK BY G Kowtha DATE <br /> DATA <br /> The following parameters listed below were recorded during the source testing on March 9,2004 <br /> Unit 1 Unit 2 <br /> SI No 9321 SI No 9230 <br /> Total influent air flow rate' (before dilution air)(scfm) 20802 20461 <br /> Total effluent air flow rate(scfm) 20802 20461 <br /> Influent temperature (°F) 130 16000 <br /> Applied vacuum ("WC) 1000 900 <br /> Influent concentration of GRO(mg/m3) 2 800 2,500 <br /> Influent concentration of benzene(mg1m3) 12 25 <br /> Influent concentration of MTBE (mg1m3) 51 35 <br /> Effluent concentration of GRO(mg/m3) 28 X10 <br /> Effluent concentration of benzene(mg/m3) 031 t0 10 <br /> Effluent concentration of MTBE (mg/m3) 041 <0 40 <br /> ' Field data sheets record flow rate(inches of water column,units)into the SVE system using a differential pressure guage and pitot <br /> tube These readings were converted to flow velocity(fpm, units)using Dwyer Chart The air flow velocity in a pipe is converted to air <br /> flow rate using the following formula <br /> Flow Rate(scfm)=Area of Pipe(ft2) *Velocity(fpm) <br /> CALCULATION <br /> The total influent flow rate is corrected to scfm for pressure using the formula listed below <br /> Pressure corrected influent flow rate Total influent air flow rate scfm*{(406 8 "WC-"WC)/406 8"WC) <br /> Unit 1 (SISI. No. 9321). <br /> Pressure corrected influent flow rate = 208 02*{(406 8"-10)/406 8"W C) <br /> Pressure corrected influent flow rate 202 91 <br /> _Unit 2 (Si.NQ. 923Q). <br /> Pressure corrected influent flow rate = 200 08 <br /> Temperature Corrected influent flow rate _ Pressure corrected flow rate *{[460 R+68 deg F]/[deg F+460 Rj) <br /> Unit 1 (Sl.No. 9321). <br /> Total Influent Flow Rate after pressure and <br /> temperature corrections — 181 58 acfm <br /> Unit 2(SI No 9230) <br /> Total Influent Flow Hate after pressure and <br /> temperature corrections — 17039 acfm <br /> ARCO 5100 Scurce Test Calcs&Summary <br />