Engine dimensions

A* - Total length of the engine when the turbocharger is located at the flywheel end.
A - Total length of the engine when the turbocharger is located at the free end.
B - Height from the crankshaft centerline to the highest point.
B* - Height from the crankshaft centerline to the highest point when the turbocharger is located at the flywheel end.
C - Total width of the engine.
C* - Total width of the engine when the turbocharger is located at the flywheel end.
D - Minimum height from the crankshaft centerline when removing a piston.
F - Distance from the crankshaft centerline to the bottom of the oil sump.

Dimensions and weights

  • Dimensions are in millimeters and weights are in metric tonnes.
  • Indicated values are for guidance only and are not binding.
  • Cylinder configurations: L = in-line and V = v-form.

Specific fuel energy consumption

  • At ISO standard reference conditions
  • Lower calorific value of fuel 42 700 kJ/kg
  • Tolerance 5%
  • Without engine driven pumps
  • Natural gas
  • Methane number min. 80
  • Lower heating value min. 28 MJ/Nm3
  • Gas pressure 5.5 bar

ISO standard reference conditions

Total barometric pressure: 1.0 bar
Suction air temperature: 25 °C
Charge air, or scavenge air, cooling water temperature: 25 °C
Relative humidity: 30%

Wärtsilä Methane Number Calculator

We have developed this tool for ship owners and operators to calculate the Methane Number of the fuel gas.
The calculation result indicates whether or not the given gas quality is suitable for use in Wärtsilä dual-fuel engines.

Methane CH4
mol%
EthaneC2H6
mol%
PropaneC3H8
mol%
Iso-butane (2-Methylpropane)i-C4H10
mol%
N-butanen-C4H10
mol%
Iso-pentane (2-Methylbutane)i-C5H12
mol%
N-pentanen-C5H12
mol%
EthyleneC2H4
mol%
PropyleneC3H6
mol%
Neo-pentane (2,2-Dimethylpropane) neo-C5H12
mol%
Mix-hexaneMix C6H14
mol%
Mix-heptaneMix C7H16
mol%
N-Octanen-C8H18
mol%
Carbondioxide C02
mol%
CarbonmonoxideC0
mol%
HydrogenH2
mol%
Nitrogen N2
mol%
Hydrogen sulfideH2S
mol%
Total mol%
Wärtsilä Methane number (WMN)
Propane Knock Index (PKI)
The calculation tool is owned by Wärtsilä and is made for customer use and is for guidance only. Changes in the tool is reserved at any time.