**Atomizing Air**  **Fired North**  **South North**  **South Fan**  **% Measured NOx Emissions**  **Pellets Chamber**  **Chamber Chamber**  **Chamber Damper**  **Total Stoichiometric**  **Total lbs/million**  **Date LTPH**  **Burner Burner**  **Total Burner**  **Burner Total**  **% Open ACFM**  **lbs/min Air**  **PPM lbs/hr**  **PPM lbs/hr**  **PPM lbs/hr**  **PPM lbs/hr**  **lbs/hr lbs/LTP**  **Btu's** 0 #DIV/0! 0 **HE Stack #2 WBE Stack #3**  **WBE Stack #4 Hibtac Pelletizing Line 3 NOx Reduction Study**  **By Increasing A**

**tomizing Air Fan Airflow**

**Natural Gas (MCF/hr) Natural Gas (lbs/min)**  **Atomizing Air Fan HE Stack #1** **Probe Length**  **Into Ty** **pe Pelet**  **Stack Mine**  **Pellets Line**  **Stack Date**  **Time inches**  **NOx CO**  **O2** Hibtac Standard 3 Windbox Exhaust #3 10/1/02 9:55 3.47 103 Hibtac Standard 3 Windbox Exhaust #3 11 105 Hibtac Standard 3 Windbox Exhaust #3 20.4 104 Hibtac Standard 3 Windbox Exhaust #3 33.9 105 Hibtac Standard 3 Windbox Exhaust #3 71.1 105 Hibtac Standard 3 Windbox Exhaust #3 84.6 104 Hibtac Standard 3 Windbox Exhaust #3 94 103 Hibtac Standard 3 Windbox Exhaust #3 102 101 Hibtac Standard 3 Windbox Exhaust #3 3.47 97 Hibtac Standard 3 Windbox Exhaust #3 11 99 Hibtac Standard 3 Windbox Exhaust #3 20.4 101 Hibtac Standard 3 Windbox Exhaust #3 33.9 102 Hibtac Standard 3 Windbox Exhaust #3 71.1 103 Hibtac Standard 3 Windbox Exhaust #3 84.6 105 Hibtac Standard 3 Windbox Exhaust #3 94 105 Hibtac Standard 3 Windbox Exhaust #3 102 104 Hibtac Standard 3 Windbox Exhaust #3 Average 103 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 145,000 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 195.5 DSCMM = 4,104

NOx Emissions = 106 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,104

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 116 MCF/hr Natural Gas = 82 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing At** **omizing A ir Fan Damper 25% Open** 

**Emission Reading (PPM) Probe**  **Length Into**  **Ty pe**  **Pelet Stack**  **Mine Pellets**  **Line Stack**  **Date Time**  **feet NOx**  **CO O2**  Hibtac Standard 3 Windbox Exhaust #4 10/1/02 10:22 3.47 124 Hibtac Standard 3 Windbox Exhaust #4 11 125 Hibtac Standard 3 Windbox Exhaust #4 20.4 125 Hibtac Standard 3 Windbox Exhaust #4 33.9 125 Hibtac Standard 3 Windbox Exhaust #4 71.1 124 Hibtac Standard 3 Windbox Exhaust #4 84.6 125 Hibtac Standard 3 Windbox Exhaust #4 94 125 Hibtac Standard 3 Windbox Exhaust #4 102 126 Hibtac Standard 3 Windbox Exhaust #4 3.47 121 Hibtac Standard 3 Windbox Exhaust #4 11 124 Hibtac Standard 3 Windbox Exhaust #4 20.4 124 Hibtac Standard 3 Windbox Exhaust #4 33.9 126 Hibtac Standard 3 Windbox Exhaust #4 71.1 126 Hibtac Standard 3 Windbox Exhaust #4 84.6 125 Hibtac Standard 3 Windbox Exhaust #4 94 126 Hibtac Standard 3 Windbox Exhaust #4 102 126 Hibtac Standard 3 Windbox Exhaust #4 Average 125 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 148,000 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 237.2 DSCMM = 4,188

NOx Emissions = 131 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,188

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 110 MCF/hr Natural Gas = 78 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing At** **omizing A ir Fan Damper 25% Open** 

**Emission Reading (PPM)**

### Probe **Length Into**  **Ty pe**  **Pelet Stack**  **Mine Pellets**  **Line Stack**  **Date Time**  **feet NOx**  **CO O2**  Hibtac Standard 3 Hood Exhaust #1 10/1/02 9:00 3.47 52 Hibtac Standard 3 Hood Exhaust #1 11 54 Hibtac Standard 3 Hood Exhaust #1 20.4 55 Hibtac Standard 3 Hood Exhaust #1 33.9 56 Hibtac Standard 3 Hood Exhaust #1 71.1 57 Hibtac Standard 3 Hood Exhaust #1 84.6 57 Hibtac Standard 3 Hood Exhaust #1 94 56 Hibtac Standard 3 Hood Exhaust #1 102 56 Hibtac Standard 3 Hood Exhaust #1 3.47 52 Hibtac Standard 3 Hood Exhaust #1 11 53 Hibtac Standard 3 Hood Exhaust #1 20.4 54 Hibtac Standard 3 Hood Exhaust #1 33.9 55 Hibtac Standard 3 Hood Exhaust #1 71.1 55 Hibtac Standard 3 Hood Exhaust #1 84.6 55 Hibtac Standard 3 Hood Exhaust #1 94 55 Hibtac Standard 3 Hood Exhaust #1 102 55 Hibtac Standard 3 Hood Exhaust #1 Average 55 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 158,000 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 104.2 DSCMM = 4,471

NOx Emissions = 62 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,471

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 116 MCF/hr Natural Gas = 82 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing**  **Atomizing Air Fan Damper 25% Open** 

**Emission Reading (PPM)**

### Probe **Length Into**  **Type Pelet**  **Stack Mine**  **Pellets Line**  **Stack Date**  **Time feet**  **NOx CO**  **O2** Hibtac Standard 3 Hood Exhaust #2 10/01/02 9:25 3.47 62 Hibtac Standard 3 Hood Exhaust #2 11 65 Hibtac Standard 3 Hood Exhaust #2 20.4 67 Hibtac Standard 3 Hood Exhaust #2 33.9 68 Hibtac Standard 3 Hood Exhaust #2 71.1 69 Hibtac Standard 3 Hood Exhaust #2 84.6 70 Hibtac Standard 3 Hood Exhaust #2 94 69 Hibtac Standard 3 Hood Exhaust #2 102 69 Hibtac Standard 3 Hood Exhaust #2 3.47 64 Hibtac Standard 3 Hood Exhaust #2 11 66 Hibtac Standard 3 Hood Exhaust #2 20.4 67 Hibtac Standard 3 Hood Exhaust #2 33.9 68 Hibtac Standard 3 Hood Exhaust #2 71.1 68 Hibtac Standard 3 Hood Exhaust #2 84.6 68 Hibtac Standard 3 Hood Exhaust #2 94 69 Hibtac Standard 3 Hood Exhaust #2 102 70 Hibtac Standard 3 Hood Exhaust #2 Average 67 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 152,000 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 128.2 DSCMM = 4,302

NOx Emissions = 73 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,302

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 116 MCF/hr Natural Gas = 82 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing**  **Atomizing Air Fan Damper 25% Open** 

**Emission Reading (PPM)**