Wartsila ?31DF Series, Product Manual

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ME AUX AUX DE DE
Wärtsilä 12V31DF
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
750 750 720 750 720 rpm Engine speed
550 550 530 550 530 kW Cylinder output
Variable Constant Constant Constant Constant Speed mode
- 7082 - 7294 - 7226 - 7294 - 7226 kJ/kWh Fuel gas consumption at 75%
load
- 7157 - 7515 - 7484 - 7515 - 7484 kJ/kWh Fuel gas consumption at 50%
load
177.7 3.8 177.7 3.8 177.2 3.8 177.7 3.8 177.2 3.8 g/kWh Fuel oil consumption at 100%
load
173.4 4.2 175.0 4.5 174.0 4.4 175.0 4.5 174.0 4.4 g/kWh Fuel oil consumption at 85% load
177.2 4.1 178.1 5.1 177.8 5.0 178.1 5.1 177.8 5.0 g/kWh Fuel oil consumption at 75% load
180.4 4.3 185.3 7.6 184.5 7.6 185.3 7.6 184.5 7.6 g/kWh Fuel oil consumption 50% load
Fuel gas system
- 895 - 895 - 895 - 895 - 895 kPa (a) Gas pressure at engine inlet, min
(PT901)
- 1015 - 1015 - 1015 - 1015 - 1015 kPa (a) Gas pressure to Gas Valve Unit,
min
- 0...60 - 0...60 - 0...60 - 0...60 - 0...60 °C Gas temperature before Gas Valve
Unit
Fuel oil system
1000±100 1000±100 1000±100 1000±100 1000±100 kPa Pressure before HP pumps (PT
101)
7.2 7.2 7.2 7.2 7.2 m 3 /h Engine driven pump capacity
(MDF only)
16...24 - 16...24 - 16...24 - 16...24 - 16...24 - cSt HFO viscosity before the engine
140 - 140 - 140 - 140 - 140 - °C Max. HFO temperature before
engine (TE 101)
2.0 2.0 2.0 2.0 2.0 cSt MDF viscosity, min.
45 45 45 45 45 °C Max. MDF temperature before
engine (TE 101)
1.1 1.1 1.1 1.1 1.1 kg/h Leak fuel quantity (HFO), clean
fuel at 100% load
3.0 1.8 3.0 1.8 3.0 1.8 3.0 1.8 3.0 1.8 kg/h Leak fuel quantity (MDF), clean
fuel at 100% load
Lubricating oil system
420 420 420 420 420 kPa Pressure before bearings, nom.
(PT 201)
40 40 40 40 40 kPa Suction ability, including pipe
loss, max.
150 150 150 150 150 kPa Priming pressure, nom. (PT 201)
35 35 35 35 35 kPa Suction ability priming pump, in-
cluding pipe loss, max.
70 70 70 70 70 °C Temperature before bearings,
nom. (TE 201)
82 82 82 82 82 °C Temperature after engine, approx.
170 144 138 144 138 m 3 /h Pump capacity (main), engine
driven
137 137 137 137 137 m 3 /h Pump capacity (main), electrically
driven
60.0 / 60.0 60.0 / 60.0 60.0 / 60.0 60.0 / 60.0 60.0 / 60.0 m
3
/h Priming pump capacity (50/60Hz)
4.2 4.2 4.2 4.2 4.2
m 3 Oil volume, wet sump, nom.
3-24 DBAE248994
Wärtsilä 31DF Product Guide 3. Technical Data