Presentation on theme: "2014 Emissions Inventory Workshop How to Calculate Your Emissions CO VOC E = A × EF PM NOx 2000 lb/ton."— Presentation transcript:
2014 Emissions Inventory Workshop How to Calculate Your Emissions CO VOC E = A × EF PM NOx 2000 lb/ton
2 2014 Emissions Inventory Workshop General Equation For most emission sources the following equation is used: E = A * EF Where E = Calculated emissions A = Activity or annual process rate EF = Emission factor - determined by the method of calculation Example sources: AP-42 WebFire Permit
Capture Efficiency: The percentage of air emission that is collected and routed to the control equipment. Most control devices have a 100% capture efficiency. Control Efficiency: The percentage of air pollutant that is removed from the air stream by the control device. 29 2014 Emissions Inventory Workshop
Capture Device: Hood Therefore, the other 10% is emitted directly to the atmosphere Secondary control device: Baghouse The control equipment removes 98% of PM 10 from the emission stream. 35 2014 Emissions Inventory Workshop Primary control device: Cyclone The control equipment removes 80% of PM 10 from the emission stream.
Total E = Captured E + Uncaptured E = ??? tons 36 2014 Emissions Inventory Workshop Captured E = A * EF * CE * (1 – PE) * (1 – SE) Uncaptured E = A * EF * (1 – CE)
Captured E = A * EF * CE * (1 – PE) * (1 – SE) 37 2014 Emissions Inventory Workshop AEF Account for capture and controls: CE PE SE
Uncaptured E = E * (1 – CE) 38 2014 Emissions Inventory Workshop Account for all PM 10 emissions: Convert to tons:
30,000 lbs of PM generated 1 3,000 lbs of PM emitted “not captured” 2 27,000 lbs of PM “captured”, sent to cyclone 3 4 Amount to Hopper 27,000 lbs* 0.80 = 21,600 lbs 5 27,000 lbs– 21,600 lbs = 5,400 lbs to the Baghouse Amount emitted to the atmosphere 5,400 lbs – 5,292 lbs = 108 lbs 108 lbs stack emissions + 3,000 lbs “not captured,” emitted as a fugitive = 3,108 lbs = 1.554 tons 7 6 Amount to Hopper 5,400 lbs * 0.98 = 5,292 lbs 39 2014 Emissions Inventory Workshop
If you would like to see an example calculation for another industry, process, or control equipment not presented today: Please email firstname.lastname@example.org and we will create an example for you. 40 2014 Emissions Inventory Workshop
Program Manager: Mark Gibbs Mark.Gibbs@deq.ok.gov Emissions Inventory Staff: Cooper GarbeCooper.Garbe@deq.ok.gov Cody LathropCody.Lathrop@deq.ok.gov Michelle Horn Michelle.Horn@deq.ok.gov Justin Milton Justin.Milton@deq.ok.gov Carrie Schroeder Carrie.Schroeder@deq.ok.gov http://www.deq.state.ok.us/aqdnew/emissions/index.htm 41 2014 Emissions Inventory Workshop
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