3.
Technical Data
3.1
Introduction
This chapter contains technical data of the engine (heat balance, flows, pressures etc.) for
design of ancillary systems. Further design criteria for external equipment and system layouts
are presented in the respective chapter.
Separate data is given for engines driving propellers “ME” and engines driving generators
“DE”.
3.1.1
Engine driven pumps
The basic fuel consumption given in the technical data tables are with engine driven lubricating
oil and cooling water pumps. The decrease in fuel consumption, without engine driven pumps,
in g/kWh is given in the table below:
Engine load [%]
Decrease in fuel consumption
50
75
100
4
3
2
g/kWh
Lubricating oil pump
2
1.6
1
g/kWh
HT- and LT-water pump
For calculation of gas consumption adjusted without engine driven pumps; use values in the
table below calculated using above table and with Methane (CH4) as reference fuel gas, with
lower calorific value of 50 MJ/kg.
Engine load [%]
Decrease in gas consumption
50
75
100
200
150
100
kJ/kWh
Lubricating oil pump
100
80
50
kJ/kWh
HT- and LT-water pump
Wärtsilä 50DF Product Guide - a16 - 9 September 2016
3-1
3. Technical Data
Wärtsilä 50DF Product Guide
Summary of Contents for WARTSILA 50DF
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