Marine Installation Manual
2022-03
1-9
1 Engine Summary
1.3 Fuel operating modes
X62DF-S2.0
Figure 1
-
4 Operating modes of the X-DF2.0 engine with iCER gas and diesel Tier III
mode
Table 1
-
6
Fuel split (energy-based) for different operating modes
Gas mode operation:
with
≤
1% nominal MGO/MDO pilot fuel and
≥
99% gas (both by energy)
Combustion Stability Mode (CSM)
operation:
3-35% MGO/MDO/HFO
65-97% gas
Fuel Sharing Mode (FSM)
operation:
15-50% MGO/MDO/HFO
50-85% gas
Diesel mode operation:
100% MGO/MDO/HFO
iCER diesel Tier III mode operation: 100% MGO (ultra low sulphur content - maximum
0.10% m/m sulphur)
NOTE
It is strongly recommended that transfer and operation in gas mode be
initiated above the Barred Speed Range (BSR). As a result this may in
-
crease the lower limit value above 10%.
SM-0690
0
10
20
30
40
50
60
70
80
90
100
110
Power [%]
Transfer
Diesel mode
Overload
Fuel sharing mode (if contracted)
Gas mode
Combustion stability mode
With iCER in operation
Without iCER in operation
Without iCER in operation
Without iCER in operation
Gas only power range
iCER diesel Tier III mode
With iCER in operation
Without iCER power range
ST
OP
DEAD SL
OW
SL
OW
HALF
FULL
SEA SPEED
