World biggest engine

[GreenV8S]

Fordo said:

I wonder why not just have smaller pistons, and more of them? Or several large engines, instead of one mahoosive engine.

I don't know what the real reason is, but one possible reason is that bigger combustion chambers have a lower surface area to volume ratio which might reduce heat loss and make them more efficient.

[V6]

how much is a 12,000 mile service?!?!?!?!

[Chris71]

Been doing the rounds for ages, but one thing just struck me:

Look at the size of that turbo!

I suppose obviously it's going to be bigger than the ones I'm used to, but it must be several stories high and it's a turbocharger.

[FourWheelDrift]

One thing to realise is that huge modern diesel engine is only just bigger is size than the steam engines used over 90 years ago on the Olympic class ocean liners : Olympic, Titanic and Brittanic.

Although lighter at 1000tons, they were 30ft high, bore of 54 inches, stroke 75 inches, 16,000hp at 76rpm.

And they carried two of them, side by side, add on the boilers and turbines and you have one massive engine room complex.





Big, when big meant something

[BoRED S2upid]

Thats going to be a bugger to change the oil filter on.

[tdm34ds]

sniff diesel said:

Still not as powerfull as a 335d (mapped of course)

There's always one!!!!!!!!!!

Regards Gandalf........................

[XitUp]

addams said:

Ha Ha, I win

Ahem...

XitUp said:

These engines are only used in huge oil tankers and container ships, like this one - http://en.wikipedia.org/wiki/Emma_Maersk

Edited by XitUp on Tuesday 5th May 15:45

[shalmaneser]

seem all the other pics but that one before. A truly amazing bit of engineering, I'd love to seem some more pics or vids of it....

Anyone?

[Scuffers]

Chris71 said:

Been doing the rounds for ages, but one thing just struck me:

Look at the size of that turbo!

I suppose obviously it's going to be bigger than the ones I'm used to, but it must be several stories high and it's a turbocharger.

I give you the IHI/ABB TPL91-B turbo - the largest the world!

capable of moving some 56M3/sec at a PR of 4.2 exceeding 70% efficency

[Mr_B]

mackie1 said:

The Emma Maersk uses a 14 cylinder one:



Edit: Damn, beaten to it. It's quite big and can carry 11,000 containers.

Edited by mackie1 on Tuesday 5th May 15:57

How many of those containers would go missing on average per year ?

[addams]

XitUp said:

addams said:

Ha Ha, I win

Ahem...

XitUp said:

These engines are only used in huge oil tankers and container ships, like this one - http://en.wikipedia.org/wiki/Emma_Maersk

Edited by XitUp on Tuesday 5th May 15:45

Doh! - must read things more carefully

[Merc fan]

Overfinch do an upgrade for that for the Range Rover Sport. Ryan Giggs has just ordered one.

[addams]

Mr_B said:

How many of those containers would go missing on average per year ?

Have seen figures ranging from 2000/year to 10,000/year worldwide.

Would imagine there are quite a lot more written-off which remain on the ship.
The only time I've seen it happen we lost 3 overboard, around 20 more were completely destroyed but stayed on the ship.

[dugt]

ok, so the engine is quite impressive, but i want to see the socket set there using,

doug

[richyb]

Would it fit into a vauxall Corsa? That'll wow the kevs at the next McDonalds meet.

[thinfourth2]

dugt said:

ok, so the engine is quite impressive, but i want to see the socket set there using,

doug

No socket set required, you use hydraulics to remove the larger nuts

[Trevelyan]

King Herald said:

My compressors put out 1600cfm, at 2000psi, and are driven by an 800hp electric motor, so I claim biggest air compressors on Pistonheads.

Possibly. You've certainly got the edge on pressure, but I'll see your compressors and raise you by 4 Ingersoll Rand Centac compressors. Each is capable of producing 7000 cfm, and is driven by a (IIRC) 1500hp electric motor fed directly at 6.6kV from a main electrical substation. We used to use a lot of compressed air mind..

[VxDuncan]

Hypothetically, if you fitted that to your mondeo it would only cost £215/yr tax as well! Bargain! Cheaper than a V6... (going on the fact it would never be type approved so get a nominal tax band)

[Talksteer]

Trevelyan said:

King Herald said:

My compressors put out 1600cfm, at 2000psi, and are driven by an 800hp electric motor, so I claim biggest air compressors on Pistonheads.

Possibly. You've certainly got the edge on pressure, but I'll see your compressors and raise you by 4 Ingersoll Rand Centac compressors. Each is capable of producing 7000 cfm, and is driven by a (IIRC) 1500hp electric motor fed directly at 6.6kV from a main electrical substation. We used to use a lot of compressed air mind..

I see your puny compressors and raise you:



Pipe line gas compressor powered by 33MW RB211 gas turbine, it delivers 1,150,000 cfm of natural gas. Obviously the fan on a Trent is technically a larger compressor in terms of mass flow (max 2,000,000 cfm) and power input but I don;t think it really counts as a "compressor" for the purposes of this "wow look at my equipment session".

Edited by Talksteer on Tuesday 5th May 19:50

[Talksteer]

GreenV8S said:

Fordo said:

I wonder why not just have smaller pistons, and more of them? Or several large engines, instead of one mahoosive engine.

I don't know what the real reason is, but one possible reason is that bigger combustion chambers have a lower surface area to volume ratio which might reduce heat loss and make them more efficient.

More pistons would mean an even longer engine (for a given capacity) which would presumably result in a longer more flexible crankshaft and worse sealing and wear. More engines means either more propellers and associated propeller shafts, thrust blocks and the like or some sort of gearbox to link them to one shaft (crazy engineering given the torque).

From a fuel economy point of view it make sense to have only one propeller and also to make the ship as large a possible, hence the super large engines.

From a power point of view these engines are pretty weedy though, two MT30 marine gas turbines would actually output more power and do so weighing in at only 6500kg each.