Wärtsilä 12V31Df - Wartsila ?31DF Series Product Manual

4-stroke, non-reversible, turbocharged and intercooled diesel engine with direct fuel injection
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Wärtsilä 31DF Product Guide
3.4
Wärtsilä 12V31DF
Wärtsilä 12V31DF
Engine speed
Cylinder output
Speed mode
Engine output
Mean effective pressure
IMO compliance
Combustion air system (Note 1)
Flow at 100% load
Temperature at turbocharger in-
take, max.
Temperature after air cooler (TE
601)
Exhaust gas system (Note 2)
Flow at 100% load
Flow at 85% load
Flow at 75% load
Flow at 50% load
Temperature after turbocharger
at 100% load (TE 517)
Temperature after turbocharger
at 85% load (TE 517)
Temperature after turbocharger
at 75% load (TE 517)
Temperature after turbocharger
at 50% load (TE 517)
Backpressure, max.
Calculated exhaust diameter for
35 m/s
Heat balance at 100% load (Note 3)
Jacket water, HT-circuit
Charge air, HT-circuit
Charge air, LT-circuit
Lubricating oil, LT-circuit
Radiation
Fuel consumption (Note 4)
(Note 5)
Total energy consumption at
100% load
Total energy consumption at 85%
load
Total energy consumption at 75%
load
Total energy consumption at 50%
load
Fuel gas consumption at 100%
load
DBAE248994
DE
Gas
Diesel
Gas
mode
mode
mode
rpm
720
kW
530
Constant
Constant
kW
6360
MPa
2.72
Tier 3
Tier 2
Tier 3
kg/s
9.6
12.2
9.9
°C
45
°C
60
60
60
kg/s
10.7
12.1
11.0
kg/s
8.9
10.3
9.1
kg/s
7.8
9.6
8.0
kg/s
5.5
6.8
5.6
°C
300
270
300
°C
350
270
350
°C
350
260
350
°C
370
280
370
kPa
7
mm
792
821
805
kW
516
612
540
kW
708
1020
756
kW
1536
1812
1608
kW
588
708
612
kW
180
180
180
kJ/kWh
7250
-
7280
kJ/kWh
7300
-
7350
kJ/kWh
7430
-
7500
kJ/kWh
7790
-
7820
kJ/kWh
7097
-
7128
DE
AUX
Diesel
Gas
Diesel
mode
mode
mode
mode
750
720
550
530
Constant
6600
6360
2.71
2.72
Tier 2
Tier 3
Tier 2
Tier 3
12.6
9.6
12.2
45
45
60
60
60
13.1
10.7
12.1
11.2
8.9
10.3
10.3
7.8
9.6
7.3
5.5
6.8
270
300
270
270
350
270
260
350
260
280
370
280
7
7
853
792
821
636
516
612
1152
708
1020
1956
1536
1812
732
588
708
180
180
180
-
7250
-
-
7300
-
-
7430
-
-
7790
-
-
7097
-
3. Technical Data
AUX
ME
Gas
Diesel
Gas
Diesel
mode
mode
mode
750
750
550
550
Constant
Variable
6600
6600
2.71
2.71
Tier 2
Tier 3
Tier 2
9.9
12.6
9.9
12.6
45
45
60
60
60
60
11.0
13.1
11.0
13.1
9.1
11.2
9.1
11.0
8.0
10.3
8.3
10.0
5.6
7.3
5.8
7.4
300
270
300
270
350
270
320
260
350
260
310
270
370
280
330
270
7
7
805
853
805
853
540
636
540
636
756
1152
756
1152
1608
1956
1596
1944
612
732
612
732
180
180
180
180
7280
-
7280
-
7350
-
7230
-
7500
-
7250
-
7820
-
7330
-
7128
-
7128
-
3-19

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