3.3
Wärtsilä 12V34DF
ME
IMO Tier 2
AE/DE
IMO Tier 2
AE/DE
IMO Tier 2
Wärtsilä 12V34DF
Diesel mode
Gas mode
Diesel mode
Gas mode
Diesel mode
Gas mode
450
450
435
kW
Cylinder output
750
750
720
rpm
Engine speed
5400
5400
5220
kW
Engine output
1.98
1.98
2.0
MPa
Mean effective pressure
Combustion air system (Note 1)
11.4
8.6
10.8
8.6
10.2
8.6
kg/s
Flow at 100% load
45
45
45
°C
Temperature at turbocharger intake, max.
-
45
-
45
-
45
°C
Temperature after air cooler (TE 601), load > 70%
-
55
-
55
-
55
°C
Temperature after air cooler (TE 601), load 30...70%
50
-
50
-
50
-
°C
Temperature after air cooler (TE 601)
Exhaust gas system (Note 2)
11.7
8.8
11.1
8.8
10.5
8.8
kg/s
Flow at 100% load
8.2
7.0
8.7
7.3
7.9
7.3
kg/s
Flow at 75% load
6.3
5.8
5.6
5.5
5.3
5.5
kg/s
Flow at 50% load
315
390
340
385
350
385
°C
Temperature after turbocharger at 100% load (TE 517)
345
400
355
415
375
415
°C
Temperature after turbocharger at 75% load (TE 517)
350
345
410
440
420
440
°C
Temperature after turbocharger at 50% load (TE 517)
4
4
4
kPa (bar)
Backpressure, max.
840
773
836
770
817
770
mm
Calculated exhaust diameter for 35 m/s
Heat balance at 100% load (Note 3)
1060
940
1010
940
970
900
kW
Jacket water, HT-circuit
1380
660
1270
660
1140
640
kW
Charge air, HT-circuit
630
500
540
500
510
490
kW
Charge air, LT-circuit
620
540
610
540
580
520
kW
Lubricating oil, LT-circuit
220
200
220
200
210
200
kW
Radiation
Fuel consumption (Note 4)
-
7620
-
7620
-
7620
kJ/kWh
Total energy consumption at 100% load
-
7960
-
8090
-
8090
kJ/kWh
Total energy consumption at 75% load
-
8170
-
8750
-
8750
kJ/kWh
Total energy consumption at 50% load
-
7543
-
7543
-
7543
kJ/kWh
Fuel gas consumption at 100% load
-
7839
-
7972
-
7972
kJ/kWh
Fuel gas consumption at 75% load
-
7972
-
8534
-
8534
kJ/kWh
Fuel gas consumption at 50% load
193
2.0
191
2.0
189
2.0
g/kWh
Fuel oil consumption at 100% load
187
2.7
195
2.8
193
2.8
g/kWh
Fuel oil consumption at 75% load
192
4.5
202
4.9
200
4.9
g/kWh
Fuel oil consumption 50% load
Fuel gas system (Note 5)
-
452
-
452
-
452
kPa (a)
Gas pressure at engine inlet, min (PT901)
-
572
-
572
-
572
kPa (a)
Gas pressure to Gas Valve Unit, min
-
0...60
-
0...60
-
0...60
°C
Gas temperature before Gas Valve Unit
Fuel oil system
700±50
700±50
700±50
kPa
Pressure before injection pumps (PT 101)
5.9
5.8
5.6
m
3
/h
Fuel oil flow to engine, approx
16...24
-
16...24
-
16...24
-
cSt
HFO viscosity before the engine
140
-
140
-
140
-
°C
Max. HFO temperature before engine (TE 101)
2.0
2.0
2.0
cSt
MDF viscosity, min.
45
45
45
°C
Max. MDF temperature before engine (TE 101)
21.8
10.9
21.6
10.8
20.7
10.3
kg/h
Leak fuel quantity (MDF), clean fuel at 100% load
2...11
2...11
2...11
cSt
Pilot fuel (MDF) viscosity before the engine
550...750
550...750
550...750
kPa (a)
Pilot fuel pressure at engine inlet (PT 112)
150
150
150
kPa
Pilot fuel pressure drop after engine, max
680
680
680
kg/h
Pilot fuel return flow at 100% load
Lubricating oil system
500
500
500
kPa
Pressure before bearings, nom. (PT 201)
40
40
40
kPa
Suction ability, including pipe loss, max.
50
50
50
kPa
Priming pressure, nom. (PT 201)
35
35
35
kPa
Suction ability priming pump, including pipe loss, max.
63
63
63
°C
Temperature before bearings, nom. (TE 201)
81
81
81
°C
Temperature after engine, approx.
Product Guide Wärtsilä 34DF - 3/2012
17
Product Guide
3. Technical Data