MEAUXAUXDEDE
Wärtsilä 10V31DF
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
Diesel
mode
Gas
mode
750750720750720rpmEngine speed
550550530550530kWCylinder output
VariableConstantConstantConstantConstantSpeed mode
55005500530055005300kWEngine output
2.712.712.722.712.72MPaMean effective pressure
Tier 3Tier 3Tier 3Tier 3Tier 3IMO compliance
Combustion air system (Note 1)
9.98.39.98.39.58.09.98.39.58.0kg/sFlow at 100% load
4545454545°CTemperature at turbocharger in-
take, max.
60606060606060606060°CTemperature after air cooler (TE
601)
Exhaust gas system (Note 2)
10.79.210.79.29.98.910.79.29.98.9kg/sFlow at 100% load
9.07.69.27.68.57.49.27.68.57.4kg/sFlow at 85% load
8.16.98.46.77.86.58.46.77.86.5kg/sFlow at 75% load
6.24.86.14.75.74.66.14.75.74.6kg/sFlow at 50% load
285300285300285300285300285300°CTemperature after turbocharger
at 100% load (TE 517)
285320285350285350285350285350°CTemperature after turbocharger
at 85% load (TE 517)
285310285380285350285380285350°CTemperature after turbocharger
at 75% load (TE 517)
285330285370285370285370285370°CTemperature after turbocharger
at 50% load (TE 517)
77777kPaBackpressure, max.
782735782735752723782735752723mmCalculated exhaust diameter for
35 m/s
Heat balance at 100% load (Note 3)
530450530450510430530450510430kWJacket water, HT-circuit
930630920630810590920630810590kWCharge air, HT-circuit
1600133016101340149012801610134014901280kWCharge air, LT-circuit
610510610510590490610510590490kWLubricating oil, LT-circuit
150150150150150150150150150150kWRadiation
Fuel consumption (Note 4)
(Note 5)
-7280-7280-7250-7280-7250kJ/kWhTotal energy consumption at
100% load
-7230-7350-7300-7350-7300kJ/kWhTotal energy consumption at 85%
load
-7250-7500-7430-7500-7430kJ/kWhTotal energy consumption at 75%
load
-7330-7820-7790-7820-7790kJ/kWhTotal energy consumption at 50%
load
-7128-7128-7097-7128-7097kJ/kWhFuel gas consumption at 100%
load
-7059-7171-7121-7171-7121kJ/kWhFuel gas consumption at 85%
load
DBAE248994 3-15
3. Technical DataWärtsilä 31DF Product Guide