MAINTENANCE AND AUXILIARY MACHINERY OPERATION WITH THE USE OF ERS

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This chapter provides an overview of the main and auxiliary machinery and equipment found on ships. Machinery is often divided into the main or propulsion engines, electrical generation, systems such as electrical, piping, refrigeration and air conditioning, firefighting and protection, deck machinery and cargo handling equipment. The auxiliary machinery may be in support of the main propulsion engines and include heat exchangers and compressed air, or in support of ship and cargo handling such as propellers and shafting, steering gear and deck cranes, or in support of ship services such as ballast water arrangements and sewage systems. An important parameter for a marine diesel engine is the rating figure, usually stated as bHp or kW per cylinder at a given rev/min. When selecting a propulsion engine for a given ship a suitable power allowance for all factors such as weather, fouling, wear and tear, as well as the need to maintain the service speed at around 85% of the maximum continuous rating, should all be taken into consideration.

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