WARTSILA ( Heat recovery system ) Steam flows from the exhaust gas boilers to the oil-fired auxiliary boiler, which acts as steam drum for the whole system. The auxiliary boiler also provides steam for heating when the engines are not operating. Capacity (one boiler) .. 1 000kw Steam generation .......1500 kg/h Steam pressure (saturated) 8 bar(a) at feed water temperature 90 oC ( Ambient Conditions ) The equipment is designed and constructed for operation at the extreme site conditions of: Ambient temperature, max.......................................35 oC Engine room temperature, max ...............................43 oC Ambient temp. min....................................................5 oC Altitude, max.............................................................. 1 O m.a.s.l. Water temperature to change air cooler max .........40 oC Max. sea water temperature ....................................34 oC ( Fuel system ) Main power commodore specifications Length over.............................................................91 .44 m Breadth moulded....................................................24.4 m Draught design waterline (dwt9 ............................abt.3 m Height to main deck ...............................................5.5 m Height to ridge of roof (from deck)........................14.4 m Height to top of the stack (from deck) ..................36.0 Length of power house (steel framing) ................ 77.4 m Breadth of power house (steel framing) ...............19.0 m Complete weight of each power commodore ..........4000 metric tonnes Steel weight of the hull ............................................... 1000 metric tonnes The power plant is designed to burn Heavy Fuel Oil as the main fuel with Light Fuel Oil as a stand by fuel. ünce natural gas becomes available at the site, the plant can be modified to operate on gas with a liquid pilot fuel. The Heavy Fuel Oil System is the main fuel oil system. Wartsila engines can be started and stopped on heavy fuel, provided that the operating temperature is maintained. (The system is designed for a fuel viscosity of 380 cSt/50 C.) ( Lubricating oil system ) The lubricating oil system provides the necessary lubrication for all moving parts of the engines. it comprises an engine-related lubrication system and a plant lubrication oil system that serves the whole power plant. To reduce installation time, Wartsila NSD has developed a prefabricated piping module to be installed into the free end of the engine. AII pipes are flushed and thus only final flushing is necessary in the shipyard when the plants are assembled. ( Cooling system ) The Cooling System consists of a primary circuit(engine cooling system, water flow through the engine) and a secondary circuit where water is not in direct contact with the engine, but with heat exchangers. The engine itself is cooled by two separate water circuits. The high temperature circuit (HT) cools the cylinder heads and cylinder liners; the low temperature circuit (LT) cools the COGENERATION WORLO & Renewable Energy [!
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