Fig 9-16
Central cooler main dimensions (4V47F0004). Example for guidance only
Weight [kg]
T [mm]
H [mm]
C [mm]
B [mm]
A [mm]
Number of cylinders
1350
450
55
1135
720
1910
6
1400
450
55
1135
720
1910
8
1430
450
55
1435
720
1910
9
1570
450
55
1435
720
1910
12
2020
500
55
2060
790
2080
16
2070
500
55
2060
790
2690
18
9.3.18
Waste heat recovery
The waste heat in the HT cooling water can be used for fresh water production, central heating,
tank heating etc. The system should in such case be provided with a temperature control
valve to avoid unnecessary cooling, as shown in the example diagrams. With this arrangement
the HT water flow through the heat recovery can be increased.
The heat available from HT cooling water is affected by ambient conditions. It should also be
taken into account that the recoverable heat is reduced by circulation to the expansion tank,
radiation from piping and leakages in temperature control valves.
9.3.19
Air venting
Air may be entrained in the system after an overhaul, or a leak may continuously add air or
gas into the system. The engine is equipped with vent pipes to evacuate air from the cooling
water circuits. The vent pipes should be drawn separately to the expansion tank from each
connection on the engine, except for the vent pipes from the charge air cooler on V-engines,
which may be connected to the corresponding line on the opposite cylinder bank.
Venting pipes to the expansion tank are to be installed at all high points in the piping system,
where air or gas can accumulate.
The vent pipes must be continuously rising.
Wärtsilä 50DF Product Guide - a16 - 9 September 2016
9-17
9. Cooling Water System
Wärtsilä 50DF Product Guide
Summary of Contents for WARTSILA 50DF
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