Worlds largest piston engine - 100,000hp @102rpm

[Rameses]

I's an engineer.

geeks...

[Oldfisti]

I've met plenty of "engineers" that would have trouble with that one.  Of course, they don't own Ducati's either.

I've met plenty of engineers that had trouble with the airplane on a conveyor belt thing.  One of them did own a Ducati!  

[Big Troubled Bear]

I've met plenty of engineers that had trouble with the airplane on a conveyor belt thing.  One of them did own a Ducati!  

Owning a ducati does`nt mean you are a genius

[Speeddog]

Yes.  Torque and Horsepower are always the same at 5252 RPM's.

Only using Imperial HP and ft-lb. 

[Jobu]

Only using Imperial HP and ft-lb. 

There's another system of measurement out there?   

[Langanobob]

100,000 HP was actually achieved on a test bed in the workshop with the 14 cylinder model, running the engine flat out at just under 102 RPM.

And of course they had the world's largest dyno on hand?  I sort of question this, how did they manage to load the thing up to 100,000 HP?  Something had to absorb a lot of energy.   But maybe if you build those engines you have a way to performance test them at the shop.

I worked on similar but smaller engines  (only about 50,000 HP each) at a power plant at Rock Fort, outside of Kingston Jamaica.  They were made by MAN B&W.  To inspect the cylinder walls you went on a walk inside the intake manifold, engine off and cooled down of course.  I could walk in the intake manifold completely upright without ducking.  The fuel they burn is very similar to roofing tar and needs to be preheated to get it liquid enough to be pumped and flow into the injectors.   These engines had  turbochargers with 6 foot or so diameter rotors  that spun at 10,000 rpm.  The contrast between the 103 RPM reciprocating engine and the 10,000 rpm turbocharger was interesting.  The turbochargers came unglued twice while I was there and punched holes in the roof, but luckily no one was injured.   

There was a steam turbine that ran from waste heat recovered from the Diesel engine exhausts.   The engines I worked on would not pass any US EPA requirements as unfortunately there was an  ugly brown plume coming from the stacks.  Hope these newer ones burn cleaner.

[bigiain]

Yes.  Torque and Horsepower are always the same at 5252 RPM's.

Only when you're measuring in dinosaur-age "imperial" units.... There's a _different_ constant for those of us who measure in Newton Metres and KiloWatts...

big

[Edit: and I _should_ have read page two and seen that Speeddog had already made this comment...]

[Jobu]

Only when you're measuring in dinosaur-age "imperial" units.... There's a _different_ constant for those of us who measure in Newton Metres and KiloWatts...

big

[Edit: and I _should_ have read page two and seen that Speeddog had already made this comment...]

kW = (Torque (nm) x RPM)/9549.29

I think the dinosaur unit actually wins in this case (one of the few times that'll happen).  Numbers are easy to remember and generally make more sense for big America engines.

[bigiain]

kW = (Torque (nm) x RPM)/9549.29

I think the dinosaur unit actually wins in this case (one of the few times that'll happen).  Numbers are easy to remember and generally make more sense for big America engines.

'course, the _truly_ metricated would be using radians per second...   

big

[Howie]

kW = (Torque (nm) x RPM)/9549.29

I think the dinosaur unit actually wins in this case (one of the few times that'll happen).  Numbers are easy to remember and generally make more sense for big America engines.

For most of us because we are used to the measurement.  Kilowatt and Newton meter is used all the time in SAE journals.  1 hp = 0.7456999 kW, 1 ft lb = 1.35582

[DoubleEagle]

And of course they had the world's largest dyno on hand?  I sort of question this, how did they manage to load the thing up to 100,000 HP?  Something had to absorb a lot of energy.   But maybe if you build those engines you have a way to performance test them at the shop.

I worked on similar but smaller engines  (only about 50,000 HP each) at a power plant at Rock Fort, outside of Kingston Jamaica.  They were made by MAN B&W.  To inspect the cylinder walls you went on a walk inside the intake manifold, engine off and cooled down of course.  I could walk in the intake manifold completely upright without ducking.  The fuel they burn is very similar to roofing tar and needs to be preheated to get it liquid enough to be pumped and flow into the injectors.   These engines had  turbochargers with 6 foot or so diameter rotors  that spun at 10,000 rpm.  The contrast between the 103 RPM reciprocating engine and the 10,000 rpm turbocharger was interesting.  The turbochargers came unglued twice while I was there and punched holes in the roof, but luckily no one was injured.   

There was a steam turbine that ran from waste heat recovered from the Diesel engine exhausts.   The engines I worked on would not pass any US EPA requirements as unfortunately there was an  ugly brown plume coming from the stacks.  Hope these newer ones burn cleaner.


[/quote   No problem maan.......just take a toke on this spliff and evrthing be ok                                                             Dolph

[Popeye the Sailor]

I've met plenty of engineers that had trouble with the airplane on a conveyor belt thing.  One of them did own a Ducati!  

But...no wind=no lift~!

[Speeddog]

---------------snip--------------
   These engines had  turbochargers with 6 foot or so diameter rotors  that spun at 10,000 rpm. 
---------------snip--------------

No wonder they came unglued.
That's F'n nuts, are you sure about that 10,000 rpm?

[Capo]

From the pic (not on a ship), there is a shaft connected to the engine. They probably use a water brake similar to the old Heenan & Freud units.

[Oldfisti]

From the pic (not on a ship), there is a shaft connected to the engine. They probably use a water brake similar to the old Heenan & Freud units.

Yes. Of course. Heenan & Freud.




  Seriously though, I'm not familiar and a quick search yielded nothing.  How does it work?