Technical Data; Introduction - Wartsila ?31DF Series Product Manual

Wärtsilä 31DF Product Guide
3.

Technical Data

3.1

Introduction

This chapter contains technical data of the engine (heat balance, flows, pressures etc.) for
design of auxiliary systems. Further design criteria for external equipment and system layouts
are presented in the respective chapter.
3.1.1 Engine driven pumps
The fuel consumption stated in the technical data tables is with engine driven pumps. The
increase in fuel consumption with engine driven pumps is given in the table below; correction
in g/kWh (Diesel mode) and or kJ/kWh (Gas mode).
3.1.1.1 Diesel mode
Table 3-1
Engine driven
pumps
Lube oil
LT Water
HT Water
Table 3-2
Engine driven
pumps
Lube oil
LT Water
HT Water
3.1.1.2 Gas mode
Table 3-3
Engine driven
pumps
Lube oil
LT Water
HT Water
DBAE248994
Constant speed engines (DE, CPP, Aux), 750/720rpm, MDF/HFO
Engine load [%]
100 85
-1.2 -1.4
-0.5 -0.6
-0.5 -0.6
Variable speed engines (CPP), 750rpm, MDF/HFO
Engine load [%]
100 85
-1.4 -1.3
-0.5 -0.5
-0.5 -0.5
Constant speed engines (DE, CPP, Aux), 750/720rpm, MDF/HFO
Engine load [%]
100 85
-50.5 -60.0 -68.6
-21.0 -24.8 -27.6
-21.0 -24.8 -27.6
75 50
-1.6 -2.6
-0.7 -1.0
-0.7 -1.0
75 50
-1.4 -1.4
-0.5 -0.5
-0.5 -0.5
75 50
-108.6
-44.8
-44.8
3. Technical Data
3-1