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Everyone likes a BIG diesel engine!

Santaman

Santaman

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https://dieselhouse.dk/en/

The machine in the video is a 1400 ton diesel engine which was used as a peak hour powerstation, it was built in 1932 and still fully functional.
It is a double acting two stroke diesel which means there's a combustion chamber at both sides of the piston, it is 12.5 meters high, 24 meters wide, it has 8 cylinders with a bore diameter of 840mm (33") and a 1500mm (59")stroke, it creates 22,500 horsepower/15,000KW resulting in 15MW of electricity.
The machine was built by Burmeister & Wain, now part of MAN diesel.
They run the machine twice a month for around 10 minutes, it's still running smooth as silk and if you ever make it to Denmark you can visit it. :D:mallory:
 
I can respect the big Diesel Engine predecessors that came before.

But I'm more interested in next generation ICE (Internal Combustion Engines).

Liquid Piston with it's Inverted Rotary engine.

Achates Power with it's Opposed Piston engine.

Koenigsegg with it's TFG (Tiny Friendly Giant).

Each of these has ALOT of up-sides in it's designs.

Especially with improved combustion cycles like RCCI.
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All of these new engine technologies & Combustion Cycles along with numerous other recent innovations could push the ICE Thermal Efficiency up and ever closer to Carnot's Theoretical Maximum of 83% Thermal Efficiency.
 
At the moment this little thingy is the most efficient ICE with around 55% efficiency.
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https://en.wikipedia.org/wiki/Wärtsilä-Sulzer_RTA96-C
In short, it's the largest diesel engine ever built, it has 14 cylinders with a whopping 960mm (38") diameter and a 2500mm(8.2ft) stroke, the crankshaft weighs in at 300 tons and the whole engine weighs 2300 tons, it produces more than 80,080KW/107,000 horsepower and 7,603,850nm (5,608,310 lbf-ft)

As for the engine desigsn you've posted, they'll probably never be mass produced, hydrogen is the way and probably the fuel cell/electric route.
The TFG btw is using a similar system as the RTA-96, the big difference is that the valves of the diesel are operated by hydraulic power.. kinda understandable with the weights involved there... :biggrin:
 
Santaman said:
At the moment this little thingy is the most efficient ICE with around 55% efficiency.
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https://en.wikipedia.org/wiki/Wärtsilä-Sulzer_RTA96-C
In short, it's the largest diesel engine ever built, it has 14 cylinders with a whopping 960mm (38") diameter and a 2500mm(8.2ft) stroke, the crankshaft weighs in at 300 tons and the whole engine weighs 2300 tons, it produces more than 80,080KW/107,000 horsepower and 7,603,850nm (5,608,310 lbf-ft)

As for the engine desigsn you've posted, they'll probably never be mass produced, hydrogen is the way and probably the fuel cell/electric route.
The TFG btw is using a similar system as the RTA-96, the big difference is that the valves of the diesel are operated by hydraulic power.. kinda understandable with the weights involved there... :biggrin:
Click to expand...


All that power, so few RPM.

I know that one of the advantages of diesel engines in the power from low RPM but given the size of the cylinders I suspect physics becomes and issue with that sort of mass.
 
Santaman said:
As for the engine desigsn you've posted, they'll probably never be mass produced, hydrogen is the way and probably the fuel cell/electric route.
Click to expand...
Hydrogen Fuel Cells are better used for Maritime applications that don't need high amounts of power density or super speedy performance.

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The "Energy Observer's" Hydrogen Fuel Cell Catamaran was powered by Toyota's Hydrogen Fuel Cell technology.

They used the Electrolysis on the boat to make Hydrogen from sea water, stored the Hydrogen for use at night.

When there wasn't wind, the Hydrogen Fuel Cell System provided power for the ship and for propulsion.

It's a very cost effective way of traversing the Globe w/o consuming Marine Petrol.

There's an entire luxury & practical market of martime ships/boats that aren't designed to go fast and just put around slowly, cleanly, quietly.

That's an entire market in itself. Along with making hydrogen fuel at the shore with Green Powered Electrolysis and storing it for transfer.


The TFG btw is using a similar system as the RTA-96, the big difference is that the valves of the diesel are operated by hydraulic power.. kinda understandable with the weights involved there... :biggrin:
Click to expand...
TFG uses Electronic Controls to operate the valve timing. They call it "FreeValve". It's expensive because it's 100% Electronic Valve Timing that needs to survive the harsh conditions of a ICE engine bay and last for the duration of the engine. That isn't easy to make durable.
Zero Mechanical Timing = MUCH less weight and very flexible timing profiles.

A AutoTuner's wet dream effectively.
 
Marc said:
All that power, so few RPM.

I know that one of the advantages of diesel engines in the power from low RPM but given the size of the cylinders I suspect physics becomes and issue with that sort of mass.
Click to expand...
Piston speed is probably the biggest issue, with a stroke of 2.5 meters piston speed is 8,5 Meters per second at mean speed, also yeah.. the pistons are 6 meters tall and weigh 5,5 tons..
 
Santaman said:
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https://dieselhouse.dk/en/

The machine in the video is a 1400 ton diesel engine which was used as a peak hour powerstation, it was built in 1932 and still fully functional.
It is a double acting two stroke diesel which means there's a combustion chamber at both sides of the piston, it is 12.5 meters high, 24 meters wide, it has 8 cylinders with a bore diameter of 840mm (33") and a 1500mm (59")stroke, it creates 22,500 horsepower/15,000KW resulting in 15MW of electricity.
The machine was built by Burmeister & Wain, now part of MAN diesel.
They run the machine twice a month for around 10 minutes, it's still running smooth as silk and if you ever make it to Denmark you can visit it. :D:mallory:
Click to expand...
That would be awesome, though I'd probably have to bring some ear protection. :)
 
XCV330 said:
That would be awesome, though I'd probably have to bring some ear protection. :)
Click to expand...
The Orsted engine isn't that loud actually, it has Roots compressors only and those don't sound like a batallion of screaming jet engine like on modern diesel engines that size.
 
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not a diesel cycle, but could burn about anything. a long forgotten engine type but one of my favorites, mechanically, the Hit-and-Miss
 
XCV330 said:
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not a diesel cycle, but could burn about anything. a long forgotten engine type but one of my favorites, mechanically, the Hit-and-Miss
Click to expand...
Hey, that's interesting.

Hot bulb engines, really old, really crude but they can use about everything liqued as fuel and they'll just keep running.
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They used them in probably the most famous tractor ever, the Lanz Bulldog, there are several versions and this is a Eilbulldog which was used to haul trailers around, the engine is a 10.338 liter singe cylinder hot bulb engine, they're quite fast as you can see.
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I have a tremendous amount of respect for the enthusiasts and volunteers that keep examples of old machinery like that running.
 
^^ I agree with you there. :mallory::techman:

Also the original engineers of those old machines, I mean a 1400 ton diesel and it was built in 1932, must have been something wild in those days. :mallory:
 
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