Exhaust Emission Data Sheet

Exhaust emission data sheet
C40 N6
60 Hz Spark ignited generator set
EPA emissions
Cummins Inc. Data and specification subject to change without notice EDS-1170
(10/17)
Engine information:
Model:
QSJ2.4
Bore:
3.41 in. (86.5 mm)
Type:
4 cycle, in-line, 4 cylinder
Stroke:
3.94 in. (100 mm)
Aspiration:
Turbocharged after-cooled
Displacement:
146.46 cu. in. (2.4 liters)
Compression ratio:
9.5:1
Emission control device:
Electronic air/fuel ratio control, and
closed-loop breather system.
Natural gas
Propane
Performance data
Standby
Standby
BHP @ 1800 RPM (60 Hz)
70
70
Fuel consumption (SCFH)
519.0
193.6
Air to fuel ratio
16.4
14.6
Exhaust gas flow (CFM)
299.2
259.8
Exhaust gas temperature (°F)
1400
1475
Exhaust emission data
HC (Total unburned hydrocarbons)*
43
466
NOx (Oxides of nitrogen as NO2)
1400
1320
CO (Carbon monoxide)
11080
19619
Values are ppmvd
HC (Total unburned hydrocarbons)*
0.07
0.58
NOx (Oxides of nitrogen as NO2)
5.65
4.49
CO (Carbon monoxide)
31.44
47.14
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).
Propane
Meets the requirements for Commercial Grade Propane under the ASTM D1835
Standard Specification for Liquefied Gases
Fuel temperature
60 ± 9 °F at Flow Transmitter
Fuel pressure
14.73 PSIA ± 0.5 PSIA at Flow Transmitter
Intake air temperature:
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.