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Old 19th December 2009, 15:02   #61
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That engine is for the EMMA MAERSK.
The worlds largest container vessel.

UM
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Old 6th December 2010, 20:01   #62
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Default I felt so homely here, thnx GTO!

Well gents,
I was referred to this thread by GTO. And I really felt homely. I am a marine engineer and all that is contained in here is my day to day part of on-board life. Though the thread seems a bit older I am contributing my 2 cents. I'm sure there are many more marine engineers on Team-bhp who can share there words too.

Quote:
Hahahaah!! awesome!!

There is a ladder leading into the crankcase!! hahaha..how awesome is that!?!
I wonder if we could shoehorn that into one of these > ;-]
Not only crank case, during piston overhauls we put a ladder in cylinder (cylinder liner in marine parlance) to measure ovality/cloverleafing/wear down etc.

Quote:
Heh,
I wonder how they torque the head bolts
Dom______
For tightening there are OEM hydraulic jacks. First leg of tightening is by hand and then these hydraulic jacks are mounted which literally stretch the cylinder heads' studs creating gap b/e nut and landing face. Now the nut is tightened again by hand. Usually pressure applied to the jocks is of the order of 1500-1800 bar.

[quote]By karizma_devil[

12CYLINDERS CRANK!
PISTON ______/QUOTE]

Yes, the propulsion engines invariably are cross head type. Thus there is a diaphragm in engine which separates cankcase from underpiston space. In the PISTON photo one can see the round shape STUFFING BOX that seals mentioned two spaces.


Quote:
Advice : Never brag to a Marine Engineer about the size of your diesel engine - they don't care ;-)

My dad's a marine engineer - the most powerful engine he's worked on are 49860 hp B&W diesels on 50,000 ton (Gross Tonnage)container ships. Surprisingly many small container ships may have much more powerful engines as compared to bulk carriers many times their size as they have much higher cruising speeds.
I liked it. I am currently sailing on world's biggest type of its genre.
Length @ 320m Breadth @70m
Fuel burnt per day: 180 ton.
Can carry 215000-265000 cubic meter liquefied gas, add another three zeroes for litre, at @36 kmph. There is no other more economical mode of transport.
Jargon changes though. We don't talk of average but SFOCi.e. specific fuel oil consumption in gm/kwH.
Fuel is what is know as Furnace oil ashore. Heavy Fuel Oil in our jargon. Needs to heat to 140 deg C approax to make it thin enough to be injectable. Boilers with 8 bar pressure are usually installed to produce steam for heating. These boilers run on exhaust gas of engines itself.

Currently there are three major manufacturers in market:
MAN B&W - Hold majority market share in slow speed propulsion engines.
Wartsila - after acquiring Sulzer, became second biggest in the world of slow speed propulsion engnies.
Mitsubishi - UE-C series of engines, though very limited market share.

Container ships usually will have biggest engines as they need good speed to survive in cut throat competing business.
Gas ships usually for given length, breadth and depth (draft) have smaller BHP engine coz the density of liquefied gas gas is quite less and hence for given volume, lesser weight is carried.

Now some twisters.

What is the size of starting air motor / battery requirements for starter.
How about clutch.
How about gearbox and reversing gear.
What about emergency provisions and engine safeties.

Thanks indeed GTO to guide me to this htread. Currently we are not allowed to upload / download photos but once back home I w'd sure contribute my photos which definitely are not as exciting as the ones already put here up, but nonetheless lil different.

Rgds all.
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Old 8th December 2010, 15:24   #63
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Default Re: The Most Powerful Diesel Engine in the world

Goodness! My next dream car is to fit one these engines into my M800......

Lets see then ....

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Old 28th July 2012, 18:59   #64
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Default Re: The Most Powerful Diesel Engine in the world

here are some pictures of this engine being built
note the date in the bottom
Thats quick!!!
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