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3 <br /> I <br /> BEST ENVIRONMENTAL, INC. San Leandro,CA(510) 278 4011 <br /> BEST ENVIRONMENTAL, INC <br /> r - <br /> STACK GAS FLOW RATE DETERMINATION -- PITOT TRAVERSE <br /> Facility Texaco Charter Way <br /> Unit Soil Remediation Unit- Inlet <br /> Condition - <br /> Date 8-28-95 <br /> Time 1430 <br /> Run 1 Run 2 Run 3 <br /> f 1 Temperature of Stack(Ts) 203 OF <br /> 2 Std Temperature (Tstd) 6000 OF <br /> 3 Square Root of Delta P (SART Delta P) 1 5339 "H2O <br /> i4 Barometnc Pressure (Pb) 3006 "Hg <br /> 5 Static Pressure (Pstatic) 8800 "H2O <br /> 6 Stack Pressure (Ps) 3653 "H2O <br /> 7 Stack Gas <br /> Moisture (H2O) M W = 18 400 % <br /> Oxygen (02) M W = 32 1870 % <br />,w Carbon Dioxide (CO2) M W = 44 1 20 % <br /> E Carbon Monoxide (CO) M W = 28 000 % <br /> Other- VOCS M W = 100 000 % <br /> Nitrogen (N2) M W = 28 801 % <br /> 8 Mol Weight of Stack Gas (MWs) 2850 g/g-mol <br /> 9 Area of Stack (As) 00873 ft2 <br /> 10 Pitot Tube Factor(Cp) 099 <br /> w Stack Gas Velocity 103.59 ft/s <br /> Actual Flow Rate 543 ACFM <br /> Standard Flow Rate 499 DSCFM <br /> WHERE: <br /> Bws = % Moisture/ 100 <br /> MWs= Molecular Weight of Stack Gas (wet-basis) <br /> MWd = Molecular Weight of Stack Gas (dry-basis) <br /> Delta P = Pitot Differential Pressure <br /> CALCULATIONS: <br /> MWs= MWd * (1-Bws) + 18 (Bws) <br /> MWd = 44(%CO2) + 32(%02) + 28(0/oCO+%N2) + (%Other*M W/100) <br /> Ps = (Pstatic/13 6) + Pb <br /> Vs = 85 49 "CP*SQRT Delta P *SQRT((Ts +460)/(Ps x MWs)) <br /> ACFM = 60 *Vs *As <br /> DSCFM =60 (1-Bwo) *Vs*As*(Tstd+ 460)/(Ts+ 460)" (Ps/29 92) <br />