Bergen C25:33L - propulsion engine0 pages

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Fact Sheet

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Diesel engines

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Bergen C25:33L - propulsion engine

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Rolls-Royce

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Features

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- world leading fast load response

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- extremely stabile frequency

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- super silent resilient mounting

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- Bergen C25:33L certified to meet

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IMOTier II requirements (except

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Bergen C2533L on 720/750 rpm)

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- competitive fuel- and lubricating oil

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consumption

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- no leakage of fuel to lubricating oil

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system

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- possibility of single bearing alternator

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- high power to weight ratio

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- power pack unit

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- proven low life cycle cost

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- service friendly

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- 24/7 support by Rolls-Royce global

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service network

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Choose Rolls-Royce engines for cost-effective operation.

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For more than sixty years of operation, we have produced four stroke medium speed engines

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for marine propulsion, marine generating set and power generation to customers world wide.

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Technical data for the Rolls-Royce C-engine at 720 to 1000 rpm

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Engine type		C25:33L6P	C25:33L8P	C25:33L9P
Number of cylinders		6	8	9
Engine speed	RPM	900/1000	900/1000	900/1000
Mean piston speed	m/sec.	10/11	10/11	10/11
Max.cont rating	kW	1920/2000	2560/2665	2880/3000
Max.cont rating (MCR)	BHP (metric)	2610/2720	3480/3625	3915/4080
Mean effective pressure (BMEP)	Bar	26.4/24.7	26.4/24.7	26.4/24.7
Specific fuel consumption	g/kWh	182/185	182/185	182/185
Specific lubricating oil consumption	g/kWh	0.7	0.7	0.7
Cooling water temp, engine outlet	°C	90	90	90

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Engine ratings are according to ISO 3046/1 The above figures are based on conditions of 0-45°C ambient air temperature and max. 32°C

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seawater temperature. Specific fuel oil consumption is based on MDO with a net calorific value of 42.7 MJ/kg and no engine driven pumps.

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If engine driven pumps, add 0,5% for each pump.

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Heavy fuel operation

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The engines are designed for operations on

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Heavy fuel with viscosity up to 700 cSt at 50°C

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ISO 8217 RMH77. Ratings will be specified

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subject to type of application.

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Waste heat recovery

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Necessary data for arranging waste heat

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recovery plants (exhaust gas and cooling water)

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are available upon reguest.

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Note

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Due to continuous development, some data

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may be change without notice.

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