|
The following test cycles and weighting factors should be applied
for verification of compliance of marine diesel engines with the
NOx limits in accordance with regulation 13
of this Annex using the test procedure and calculation method as
specified in the NOx Technical Code.
| .1 |
For constant-speed marine engines for ship
main propulsion, including diesel-electric drive, test cycle
E2 should be applied. |
| .2 |
For variable-pitch propeller sets test cycle
E2 should be applied. |
| .3 |
For propeller-law-operated main and propeller-law-operated
auxiliary engines the test cycle E3 should be applied. |
| .4 |
For constant-speed auxiliary engines test
cycle D2 should be applied. |
| .5 |
For variable-speed, variable-load auxiliary
engines, not included above, test cycle C1 should be applied. |
Test cycle for constant-speed main propulsion application
(including diesel-electric drive or variable-pitch propeller installations)
|
Test cycle type E2
|
Speed
|
100%
|
100%
|
100%
|
100%
|
|
Power
|
100%
|
75%
|
50%
|
25%
|
|
Weighting factor
|
0.2
|
0.5
|
0.15
|
0.15
|
Test cycle for propeller-law-operated main and propeller-law-operated
auxiliary engine application
|
Test cycle type E3
|
Speed
|
100%
|
91%
|
80%
|
63%
|
|
Power
|
100%
|
75%
|
50%
|
25%
|
|
Weighting factor
|
0.2
|
0.5
|
0.15
|
0.15
|
Test cycle for constant-speed auxiliary engine application
|
Test cycle type D2
|
Speed
|
100%
|
100%
|
100%
|
100%
|
100%
|
|
Power
|
100%
|
75%
|
50%
|
25%
|
10%
|
|
Weighting factor
|
0.05
|
0.25
|
0.3
|
0.3
|
0.1
|
Test cycle for variable-speed and -load auxiliary engine
application
|
Test cycle type C1
|
Speed
|
Rated
|
Intermediate
|
Idle
|
|
Torque
|
100%
|
75%
|
50%
|
10%
|
100%
|
75%
|
50%
|
0%
|
|
Weighting factor
|
0.15
|
0.15
|
0.15
|
0.1
|
0.1
|
0.1
|
0.1
|
0.15
|
|