Wartsila ?31DF Series Product Manual page 23

Wärtsilä 31DF Product Guide
Table 2-5
Load
W31DF on Gas, LFO pi-
lot, 550kW/cyl
W31DF on Diesel,
550kW/cyl
Fig 2-8
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.
DBAE248994
Max continous low load operation time for load acceptance according to
Normal Load acceptance chapter
%
h
h
Low load operating restrictions
Black line is intended for diesel mode operation and blue line is intended for gas
mode operation.
Operating restrictions on SCR applications in low load operation to be observed.
10
0 2
5 5 10
5 5 47
NOTE
NOTE
2. Operating Ranges
17.5 20
150
24
100
87
2-9