Iso Cycles; C1 Cycle; D1 Cycle; D2 Cycle - Kohler SFGLD480 Operation & Maintenance Manual

1.3. ISO Cycles

On many occasions (e.g. Marine engines), emissions are calculated by taking measurements under various
operating conditions of the engine and applying weighting factors for each checkpoint. Legislations specify which
cycle must be applied to calculate the emissions. These are the most common cycles:

C1 Cycle

-
Speed
Torque (%)
Weighting Factor
-

D1 Cycle

Speed
Torque (%)
Weighting Factor
-

D2 Cycle

Speed
Torque (%)
Weighting Factor
E2 Cycle
-
Speed
Torque (%)
Weighting Factor
- E3 Cycle
Speed (%)
Torque (%)
Weighting Factor
E5 Cycle
-
Speed (%)
Torque (%)
Weighting Factor
Formula for the specific emissions calculation:
∑
Emissions =
∑
Where q is the pollutant flow (g/h) as 1.2 paragraph formula, P
m gas i
PRODUCT INFORMATION
IC-C-D-40-001e
Rated Speed
100 75
0.15 0.15
Rated Speed
100 75
0.3 0.5
100 75
0.05 0.25
Rated Speed
100 75
0.2 0.5
100 91
100 75
0.2 0.5
100 91
100 75
0.08 0.13
INDEX
C
EMISSION UNITS CONVERSION
50 10 100
0.15 0.1 0.1
50
0.2
Rated Speed
50 25
0.3 0.3
50 25
0.15 0.15
80 63
50 25
0.15 0.15
80 63
50 25
0.17 0.32
is the power and W
i
4.1.47
DATE
November 2015
O&M_2.002211.810_A_10_2016
Intermediate Speed
75 50
0.1 0.1
10
0.1
Idling
0
0.3
is the weighting factor
i
Dep.2
Idling
0
0.15
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