ENGINES AND GENERATING SETS
MEDIUM-SPEED ENGINES
Wärtsilä 34DF
IMO Tier II
Wärtsilä 50DF
IMO Tier II
Cylinder bore
340 mm
Fuel specification: Fuel oil
Cylinder bore
500 mm
Fuel specification: Fuel oil
Piston stroke
400 mm
700 cSt/50°C
Piston stroke
580 mm
700 cSt/50°C
Cylinder output
500 kW/cyl
Cylinder output
950, 975 kW/cyl
Speed
750 rpm
ISO 8217, category ISO-F-DMX, DMA and DMB
Speed
500, 514 rpm
ISO 8217, category ISO-F-DMX, DMA and DMB
Mean effective pressure
22.0 bar
Mean effective pressure
20.0 bar
Piston speed
10.0 m/s
Natural gas, Methane number: 80 LHV: min. 28 MJ/Nm³, 5.5 bar BSEC 7280 kJ/kWh
Piston speed
9.7, 9.9 m/s
7200 sR1/100°F
Rated power
7200 sR1/100°F
Natural gas, Methane number: 80 LHV: min. 28 MJ/Nm³, 5.5 bar BSEC 8510 kJ/kWh
Rated power
Engine type
kW
6L34DF
3 000
9L34DF
4 500
12V34DF 16V34DF
Engine type
50 Hz
60 Hz
Engine kW
Gen. kW
Engine kW
Gen. kW
6L50DF
5 700
5 500
5 850
5 650
6 000
8L50DF
7 600
7 330
7 800
7 530
8 000
9L50DF
8 550
8 250
8 775
8 470
12V50DF
11 400
11 000
11 700
11 290
16V50DF
15 200
14 670
15 600
15 050
18V50DF
17 100
16 500
17 550
16 940
Engine dimensions (mm) and weights (tonnes) Engine type
A
B
C
D
F
Weight
6L34DF
5 280
2 550
2 385
2 345
1 155
34
9L34DF
6 750
2 550
2 385
2 345
1 155
47
12V34DF
6 615
2 665
3 020
2 120
1 475
59
Engine dimensions (mm) and weights (tonnes)
16V34DF
7 735
2 430
3 020
2 120
1 475
75
Engine type
A
B
C
D
F
Weight
6L50DF
8 115
3 580
2 850
3 820
1 455
96
8L50DF
9 950
3 600
3 100
3 820
1 455
128
9L50DF
10 800
3 600
3 100
3 820
1 455
148
12V50DF
10 465
4 055
3 810
3 600
1 500
175
16V50DF
12 665
4 055
4 530
3 600
1 500
220
18V50DF
13 725
4 280
4 530
3 600
1 500
240
For definitions see page 20.
Generator output based on a generator efficiency of 96.5%.
For definitions see page 20.