If you'd like to see the photos contact me off list. Has a great shot of
installing bearing inserts and crankshaft.
Chris Harris......................NZed.
How's this for an engine.
Information: Interesting engine building
The Wartsila NSD (Sulzer) RTA96-C two-stroke diesel engine is the most
powerful and most efficient piston prime-mover in the world today.
Bore - just under 3'2" (965mm).
Stroke - just over 8'2" (2489mm).
Available in 6 through 12 cylinder versions (all inline).
Engine weight exceeds 2000 tons in the 12 cylinder version (the
crankshaft alone exceeds 300 tons).
Point of maximum continuous power is 89,640 HP (66,844kW) at 100RPM with
the 12 cylinder version.
Point of maximum fuel economy is 53,244 HP (37,704kW) at 90 RPM.
The 12-cylinder engine exceeded 100,000 horsepower during overspeed
testing (all of 101.5 RPM!) while under test at Japan's Diesel Union
works (who built the first engines and from who these pictures are
taken).
Fuel consumption at maximum power is 0.278 lbs/HP/hour (BSFC).
Fuel consumption at maximum economy is 0.260 lbs/HP/hour.
At maximum economy the Sulzer engine exceeds 50% thermal efficiency
(i.e. more than 50% of the fuel going into the engine is converted to
power).
For comparison, consider that automotive and small aircraft
spark-ignition engines have British Standard Fuel Consumption figures in
the 0.40-0.60 lbs/HP/hour range and 25-30% thermal efficiency.
Caterpillar 3516s consume roughly 0.42lbs/HP/hour of diesel (unknown
thermal efficiency).
Even at its most efficient power setting, the Sulzer 12 cylinder
consumes nearly 1,660 gallons of heavy fuel oil an hour.
/// unsubscribe/change address requests to majordomo@autox.team.net or try
/// http://www.team.net/mailman/listinfo
/// Archives at http://www.team.net/archive/land-speed
/// what is needed. It isn't that difficult, folks.
|