Exhaust Emission Data Sheet

©2017 Cummins EDS-3031-EN (8/17) A058G412
Engin
e Information:
Model: QSJ8.9G Bore: 4.49 in. (114.1 mm)
Type: 4 Cycle, In-line, 6 Cylinder Stroke: 5.69 in. (144.5 mm)
Aspiration: Turbocharged and aftercooled Displacement: 543 cu. in. (8.9 liters)
Compression Ratio: 9.7:1
Emission Control Device: Electronic Air/Fuel Ratio Control and Closed-Loop Breather System
Natural Gas
PERFORMANCE DATA
Standby
BHP @ 1800 RPM (60 Hz) 205
Fuel Consumption (SCFH) 1660.9
Air to Fuel Ratio 24.0
Exhaust Gas Flow (CFM) 1200
Exhaust Gas Temperature (°F) 1197
EXHAUST EMISSION DATA
HC (Total Unburned Hydrocarbons)* 247
NOx (Oxides of Nitrogen as NO 2 ) 203
CO (Carbon Monoxide) 420
Values are ppmvd
HC (Total Unburned Hydrocarbons)* 0.60
NOx (Oxides of Nitrogen as NO 2 ) 1.00
CO (Carbon Monoxide) 1.90
Values are Grams per HP-Hour
*HC includes all NMHC, VOC, POC, and ROC constituents (Non-Methane HC, Volatile
Organic Compounds, Precursor Organic Compounds, and Reactive Organic Compounds)
TEST CONDITIONS
Data was recorded during steady-state rated engine speed (± 25 RPM) with full load (±2%). Pressures,
temperatures, and emission rates were stabilized.
Fuel Specification:
Natural Gas:
Dry gas as received from Supplier (1000 BTU/SCF).
Fuel Temperature:
60 ± 9 °F at Flow Transmitter
Fuel Pressure
:
14.73PSIA ± 0.5 PSIA at Flow Transmitter
Intake Air Tempe
rature:
77 ± 9 °F at inlet
Barometric Pressure:
29.92 in. Hg ± 1 in. Hg
Humidity:
NOx measurement corrected to 75 grains H2O/lb dry air
The NOx, HC, and CO emission data tabulated here were from a single engine under the test conditions shown above. These data are subjected
to instrumentation and engine-to-engine variability. Field emission test data are not guaranteed to these levels. Actual field test results may vary
due to test site conditions, installation, fuel specification, test procedures and instrumentation. Engine operation with excessive air intake or
exhaust restriction beyond published maximum limit, or with improper maintenance, may results in elevated emission levels.
Data and Specifications Subject to Change Without Notice
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