3.2
Wärtsilä 9L34DF
ME
IMO Tier 2
AE/DE
IMO Tier 2
AE/DE
IMO Tier 2
Wärtsilä 9L34DF
Diesel mode
Gas mode
Diesel mode
Gas mode
Diesel mode
Gas mode
450
450
435
kW
Cylinder output
750
750
720
rpm
Engine speed
4050
4050
3915
kW
Engine output
1.98
1.98
2.0
MPa
Mean effective pressure
Combustion air system (Note 1)
8.6
6.5
8.1
6.5
7.6
6.5
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)
8.8
6.7
8.3
6.7
7.8
6.7
kg/s
Flow at 100% load
6.2
5.3
6.5
5.4
6.0
5.4
kg/s
Flow at 75% load
4.7
4.4
4.2
4.3
4.0
4.3
kg/s
Flow at 50% load
315
390
340
390
350
390
°C
Temperature after turbocharger at 100% load (TE 517)
345
410
355
425
375
425
°C
Temperature after turbocharger at 75% load (TE 517)
350
355
410
440
420
440
°C
Temperature after turbocharger at 50% load (TE 517)
4
4
4
kPa (bar)
Backpressure, max.
727
673
724
673
707
673
mm
Calculated exhaust diameter for 35 m/s
Heat balance at 100% load (Note 3)
800
730
760
730
730
700
kW
Jacket water, HT-circuit
1030
510
880
510
860
490
kW
Charge air, HT-circuit
470
370
410
370
380
360
kW
Charge air, LT-circuit
470
440
460
440
430
420
kW
Lubricating oil, LT-circuit
160
150
160
150
160
150
kW
Radiation
Fuel consumption (Note 4)
-
7710
-
7710
-
7710
kJ/kWh
Total energy consumption at 100% load
-
8130
-
8190
-
8190
kJ/kWh
Total energy consumption at 75% load
-
8350
-
8890
-
8890
kJ/kWh
Total energy consumption at 50% load
-
7629
-
7629
-
7629
kJ/kWh
Fuel gas consumption at 100% load
-
8010
-
8067
-
8067
kJ/kWh
Fuel gas consumption at 75% load
-
8153
-
8677
-
8677
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)
4.4
4.4
4.2
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)
16.4
8.2
16.2
8.1
15.5
7.8
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
635
635
635
kg/h
Pilot fuel return flow at 100% load
Lubricating oil system
500
500
500
kPa
Pressure before bearings, nom. (PT 201)
30
30
30
kPa
Suction ability, including pipe loss, max.
50
50
50
kPa
Priming pressure, nom. (PT 201)
30
30
30
kPa
Suction ability priming pump, including pipe loss, max.
63
63
63
°C
Temperature before bearings, nom. (TE 201)
79
79
79
°C
Temperature after engine, approx.
Product Guide Wärtsilä 34DF - 3/2012
15
Product Guide
3. Technical Data