Marine Installation Manual
2021-08
4-37
4 Ancillary Systems
4.4 Fuel gas system
X72DF
Methane number dependent engine output
The Methane Number (MN) has an influence on the maximum available power
output.
Figure 4
-
18 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
SM-0036
60
Engine power [%]
50
55
65
70
75
80
90
85
95
100
105
80
70
90
100
60
MN
65
75
85
95
maximum engine power
