Marine Installation Manual 2022-03 4-42
4 Ancillary Systems
4.5 Fuel gas system
X62DF-S2.0
Methane number dependent engine output
The Methane Number (MN) has an influence on the maximum available power
output.
Figure 4-24 Maximum achievable power
Methane number calculation
An application provided by the European Association of Internal Combustion
Engine Manufacturers (EUROMOT) allows calculating the methane number of
natural gas mixtures. The application is free software and can be accessed with
the following link:
https://www.euromot.eu/wp-content/up-
loads/2019/07/MWM-MN-Code-for-distribution-2016-04-22.zip
65 75
85
95
maximum engine power