WÄRTSILÄ WARTSILA32, Product Manual, Page: 145 / 254

where:
total fresh water flow [m³/h] q =
nominal LT pump capacity[m³/h] q
LT =
heat dissipated to HT water [kW] Φ =
HT water temperature after engine (91°C) T
out
=
HT water temperature after cooler (38°C) T
in
=
Design data:
see chapter Technical Data Fresh water flow
see chapter Technical Data Heat to be dissipated
max. 60 kPa (0.6 bar) Pressure drop on fresh water side
acc. to cooler manufacturer, normally 1.2 - 1.5 x the fresh
water flow Sea-water flow
acc. to pump head, normally 80 - 140 kPa (0.8 - 1.4 bar) Pressure drop on sea-water side, norm.
max. 38°C Fresh water temperature after cooler
15% Margin (heat rate, fouling)
Fig 9-12 Main dimensions of the central cool-
er.
NOTE
The sizes are for guidance only. These central coolers are dimensioned to exchange
the heat of the engine only, other equipment such as CPP, gearbox etc. is not
taken into account.
Dimension [mm] Weight
[kg]
P [kW] Engine type
H F E D C B A
1675 380 1057 330 817 690 193 820 1641 1 x 6L32
Wärtsilä 32 Product Guide - a21 - 7 September 2016 9-15
9. Cooling Water System Wärtsilä 32 Product Guide