1.2 Reference conditions
The output is available up to a charge air coolant temperature of max. 38°C and an air
temperature of max. 45°C. For higher temperatures, the output has to be reduced according
to the formula stated in ISO 3046-1:2002 (E).
The specific fuel oil consumption is stated in the chapter Technical data. The stated specific
fuel oil consumption applies to engines with engine driven pumps, operating in ambient
conditions according to ISO 15550:2002 (E). The ISO standard reference conditions are:
100 kPatotal barometric pressure
25°Cair temperature
30%relative humidity
25°Ccharge air coolant temperature
Correction factors for the fuel oil consumption in other ambient conditions are given in standard
ISO 3046-1:2002.
1.3 Operation in inclined position
Max. inclination angles at which the engine will operate satisfactorily.
Table 1-2 Inclination with Normal Oil Sump
15°
● Transverse inclination, permanent (list)
22.5°
● Transverse inclination, momentary (roll)
10°
● Longitudinal inclination, permanent (trim)
10°
● Longitudinal inclination, momentary (pitch)
NOTE
Inclination in all directions requires special arrangements.
1-2 Wärtsilä 31 Product Guide - a1 - 18 October 2016
Wärtsilä 31 Product Guide1. Main Data and Outputs
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