Reference Conditions; Operation In Inclined Position (Only For Marine Solutions Engines) - Wartsila ?31DF Series Product Manual

1. Main Data and Outputs
1.2

Reference conditions

The output is available within a range of ambient conditions and coolant temperatures specified
in the chapter Technical Data. The required fuel quality for maximum output is specified in the
section Fuel characteristics. For ambient conditions or fuel qualities outside the specification,
the output may have to be reduced.
The specific fuel consumption is stated in the chapter Technical Data. The statement applies
to engines operating in ambient conditions according to ISO 15550:2002 (E).
Correction factors for the fuel oil consumption in other ambient conditions are given in standard
ISO 15550:2002 (E).
1.3 Operation in inclined position (only for Marine Solutions
engines)
The engine is designed to ensure proper engine operation at inclination positions. Inclination
angle according to IACS requirement M46.2 (1982) (Rev.1 June 2002) - Main and auxiliary
machinery.
Max. inclination angles at which the engine will operate satisfactorily:
Table 1-2
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●
●
●
1-2
total barometric pressure
air temperature
relative humidity
charge air coolant temperature
Inclination with Normal Oil Sump
Permanent athwart ship inclinations (list)
Temporary athwart ship inclinations (roll)
Permanent fore and aft inclinations (trim)
Temporary fore and aft inclinations (pitch)
Wärtsilä 31DF Product Guide
100 kPa
25 °C
30 %
25 °C
15°
22.5°
10°
10°
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