Table 2-5 Max continous low load operation time for load acceptance according to
Normal Load acceptance chapter
2017.510
20%
Load
150
241055h
W31DF on Gas, LFO pi-
lot, 550kW/cyl
100
874755h
W31DF on Diesel,
550kW/cyl
Fig 2-8 Low load operating restrictions
NOTE
Black line is intended for diesel mode operation and blue line is intended for gas
mode operation.
2.3.2 Absolute idling
Absolute idling (declutched main engine, disconnected generator)
- Maximum 10 minutes if the engine is to be stopped after the idling. 3-5 minutes idling before
stop is recommended.
- Maximum 5 hours in gas mode and 10 hours in diesel mode if the engine is to be loaded
after the idling.
NOTE
Operating restrictions on SCR applications in low load operation to be observed.
DBAE248994 2-9
2. Operating RangesWärtsilä 31DF Product Guide
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