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The World's Most Gargantuan Diesel Engine

Posted July 20, 2011 3:47 PM

From Gizmodo:

Emma Mærsk is the most vast container ship in the world? At over 1300 feet long, it weighs 170,974 tons and carries 11,000 twenty-foot shipping containers. To move this mammoth vessel at its cruising speed of 31 knots (vs. the standard 18-20), you'll need more than some puny nuclear reactor-you need the 109,000Hp Wärtsilä-Sulzer RTA96-C, a 44-foot tall, 90-foot long diesel engine. The 14-cylinder, 2-stroke TRA96 aboard the Emma Mærsk weighs over 2300 tons and operates at a relatively pokey 102 rpm. Unlike traditional diesel engines, the RTA96-C forgoes the camshaft, chain gear, fuel pumps and hydraulic actuators in favor of common rail technology. Common rail technology uses a high-pressure fuel rail to supply individual solenoid valves rather than a fuel pump feeding injectors. This allows the engine to perform better at low revs and consume less fuel. Still, even with these efficiencies, it still injects 6.5 ounces of diesel in every piston for every cycle.

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#1

Re: The World's Most Gargantuan Diesel Engine

07/20/2011 11:01 PM

Just sayin'

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#2

Re: The World's Most Gargantuan Diesel Engine

07/21/2011 7:14 AM

And I thought that my Renault 1600 diesel engine was big!

Spencer.

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#3

Re: The World's Most Gargantuan Diesel Engine

07/21/2011 10:49 AM

6.5 Oz per stroke = 2 barrels of Oil every minute? 89.25 gallons? Wow

6.5*14*102 / 16 / 6.5 / 42 = 2.125 bll per min = 5000+ gallons per hour

oz * cyl * RPM / oz-lbs / lbs-gal / gal-bll

Unfathomable quantity, presumably move efficient at cruise.

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#4
In reply to #3

Re: The World's Most Gargantuan Diesel Engine

07/21/2011 11:55 AM

Well, it's even worse than that.

The Emma Mærsk gets an additional 30MW from five Caterpillar 8M32.

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#5

Re: The World's Most Gargantuan Diesel Engine

07/21/2011 4:59 PM

This ship is quite impressive!

I have checked a couple dozen web sites and have read that she has fuel tanks mounted in the center of the double hull but I can't seem to find how much fuel she actually carries.

Anyone see that anywhere?

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#6
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Re: The World's Most Gargantuan Diesel Engine

07/22/2011 4:45 PM

I looked around and could find nothing about fuel reserve.

Something I found interesting: the site you linked to first is a guy who is building a scale (1:220) model of the Emma Mærsk. Started in 2007. The varied pages of his site came up quite often in my driving around the web looking for this fuel info. Pretty cool project, but he ran out of money and is at a standstill.

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#7
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Re: The World's Most Gargantuan Diesel Engine

07/22/2011 5:03 PM

Hey, thanks for looking.

Now my curiosity has the better of me..........I'm on a mission..............

Yes, that model website was neat. Hopefully he will find another source for funding to complete the project.

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#8

Re: The World's Most Gargantuan Diesel Engine

07/23/2011 7:35 AM

The container ship Maersk Eindhoven is part from the newest series of the Maersk company

"The heavy fuel oil tanks have capacity of 12,400 cubic meters, while the machine diesel oil tanks have capacity of 500 cubic meters"

The best I found on fuel tank capacity. This ship is just a little smaller of its larger sister.

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#10
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Re: The World's Most Gargantuan Diesel Engine

07/25/2011 1:56 PM

Thanks for the info metalSmiths!

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#9

Re: The World's Most Gargantuan Diesel Engine

07/24/2011 6:37 AM

"Puny nuclear reactor"? The typical nuclear aircraft carrier has 4ea. 260,000 h.p. turbines,each powering it's own output shaft.

Economy? They are designed for 20 years between pit stops for refueling....

Nonetheless, that is one awesome Diesel engine!!! Thanks for posting!

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#11
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Re: The World's Most Gargantuan Diesel Engine

07/25/2011 2:44 PM

Yeah, I wondered about the 'Puny' remark too.

Are there any merchant vessels with nuclear power? If there were, the Emma would be a good candidate. I would think not; I believe the varied authorities around the world recognize the need to keep the genie in the bottle as best they can.

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#12
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Re: The World's Most Gargantuan Diesel Engine

07/27/2011 12:11 AM

Are there any merchant vessels with nuclear power?

from here:

"The United States first and only Nuclear powered merchant ship was designed in hopes of finding peaceful uses for Nuclear energy as part of the Atoms for Peace program. President Eisenhower had the ship built in the late 1950s at a cost of $46.9 million, which included a $28.3 million nuclear reactor and fuel core. At 596-feet-long she was the pride of the fleet with sleek lines like that of an oceangoing yacht. During her short 5 years of service (1965-1970) she saved over 29 million gallons of fuel oil but her high maintenance cost led to her downfall. In 1981, the Savannah was brought back to her cold war glory by re-activating her as a museum ship offering Americans a glimpse into the atomic age. Visitors could walk the ship's decks and even tour the reactor from an observation window as well as look into staterooms and passenger areas but in 1994 the charter was terminated. The Maritime Administration, who is responsible for overseeing the Savannah, had the ship moved to Baltimore where she remains under a 3 year, $588,380 U.S. Maritime Administration contract with the Vane Brothers' shipyard at the Canton Marine Terminal. Once the Savannah's DDR (Decommissioning, Decontamination and Radiological) work is completed the U.S. Maritime Administration plans to eventually donate the famous maritime relic as a museum or public attraction."

and quasi-commercial here:

"The Arktika class is a Russian (former Soviet) class of nuclear powered icebreakers. They are owned by the federal government, but were operated by the Murmansk Shipping Company (MSCO) until 2008, when they were transferred to the fully government-owned operator Atomflot. Of the ten civilian nuclear powered vessels built by Russia (and the Soviet Union), six have been of this type. They are used for clearing shipping lanes north of Siberia as well as for scientific and recreational expeditions to the Arctic."

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