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Cooling Systems(2)
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Cooling systems
Heat from diesel engine and auxiliary units is directly or indirectly dissipated to sea water. Exceptions are exhaust gas and radiation.
Temperature control is important
• Wide variation of the cooling energy demand.
• Wide variation of sea water temperature
• Engine sensitivity to temperature deviations
• Preferably independent systems for ME’s (2x) and AE’s for simple adjustment
Water flow can be prevented by air pockets, ice slush or entered material.
Chemical purity is important
LT Cooling Systems
Components
Direct driven cooling water pumps
Direct driven lubrication oil pump
Low and high sea chests:
Volume in GA drawings. 1m3
/750kW. Not necessarily on opposite sides.
Sea water main line:
Cunifer or rubber coated steel pipe ND250 … 600 or duct in double bottom, often in the very crowded area
Central coolers:
2 easily cleaned titanium plate coolers
Main sea water pumps:
SW and ballast pumps directly above SW main line