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Posted

Yes you read it right.

max power 108,920 hp at 102 rpm, torque: 5,608,312 lb/ft at 102rpm

The Wartsila-Sulzer RTA96-C turbocharged two-stroke diesel engine is the most powerful and most efficient prime-mover in the world today. The Aioi Works of Japan 's Diesel United, Ltd built the first engines and is where some of these pictures were taken. It is available in 6 through 14 cylinder versions, all are inline engines. These engines were designed primarily for very large container ships. Ship owners like a single engine/single propeller design and the new generation of larger container ships needed a bigger engine to propel them. The cylinder bore is just under 38" and the stroke is just over 98". Each cylinder displaces 111,143 cubic inches (1820 liters) and produces 7780 horsepower. Total displacement comes out to 1,556,002 cubic inches (25,480 liters) for the fourteen cylinder version

Posted

Fuel consumption at maximum power is 0.278 lbs per hp per hour (Brake Specific Fuel Consumption). Fuel consumption at maximum economy is 0.260 lbs/hp/hour. At maximum economy the engine exceeds 50% thermal efficiency. That is, more than 50% of the energy in the fuel in converted to motion.

For comparison, most automotive and small aircraft engines have BSFC figures in the 0.40-0.60 lbs/hp/hr range and 25-30% thermal efficiency range.

Even at its most efficient power setting, the big 14 consumes 1,660 gallons of heavy fuel oil per hour.

A cross section of the RTA96C:

 

Posted

Well that's solved the issue of the extra horsepower I need to get on the pace.  Anybody know any workshops that would be keen to do this engine conversion for me?

Posted

Shane, you may need a suspension upgrade me thinks  ;)

 

Yeah, good point, might upset the weight balance a little.  I'm also not sure if 5,608,312 lb/ft will be enough torque.........Do they make a turbo version?  Maybe I could make my own out of a couple of windmills.

Posted

it is turbo charged ;)

 

haha, trust me not to read things properly........or have a decent look at the pic......

 

Yeah it comes on boost at 68 rpm

 

Now that's what I'm torqueing about.............ok, sorry that was lame.

 

 

Posted

I love big ship engines, modern marvels of mechanical engineering.

My most memorable marine engine experience was standing between the two running diesel engines of an Oberon class sub, seeing the rockers ticking up and down through the clear covers, ahh the noise 8) 8) 8)

2 16 cylinder engines, side by side, with a meter wide passage between them.

 

just for reference, i am not in the navy, nor have ever been in any defence forces at all, but my dad, a Lt Commander and former submariner was nice enough to 'massage' a few strings and get a tour for our scout group on an active service sub.

Cool stuff.

 

edit, i have also sat on the sonar hump of the Hmas Otway, but then anyone in holbrook can do that :P

 

edit again, heres a shot of the twin motors,

oberon11.jpg

 

the black covers are clear, well, they were origionally, but the oil stains them.

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