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Old 12-05-08, 10:10 AM   #8
seafarer
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Quote:
Some facts on the 14 cylinder version:
Total engine weight: 2300 tons (The crankshaft alone weighs 300 tons.)
Length: 89 feet
Height: 44 feet
Maximum power: 108,920 hp at 102 rpm
Maximum torque: 5,608,312 lb/ft at 102rpm

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.
from: http://www.emma-maersk.com/engine/Wa...er_RTA96-C.htm

Oh, and the container ship, Emma Maersk is 156,907 DWT, 1302' 6" (397 m) long, and carries 15,000 TEU (1 TEU = 20 ft container) and can hit 25.5knots, so that big engine is moving one very big ship too!
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