Enter values for the amount of SO2 in ppmv (parts per million by volume), the stack flow gas rate in dscfm (dry standard cubic feet per meter), and the mass fuel throughput (in lb/hr) to determine the emission factor for SO2 coming out of a plant. The equation used to calculate hourly emissions of SO2 is:
ESO2= (C*MW*Q*60)/(V*106)
Where:
C= ppmv SO2 (Entered into calculator)
MW= Molecular weight in lb/lb-mole (64 lb/lb-mole)
Q= Flow Rate (Entered into calculator)
V= Molar Volume (385.5 (ft3)/lb/mole)
The equation used to determine the Heat Input is:
Hin = (Qf * HHV)/(106)
Where:
Qf= Mass of SO2 containing fuel used per hour (Entered into Calculator)
HHV= Fuel heating value (18000 Btu/hour)