Emma Mærsk class
 The Emma Mærsk in Aarhus 5th September 2006
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The Emma Mærsk class is a series of eight identical container ships owned by the Danish shipping company Mærsk , which were built at the Odense Staalskibsværft shipyard . From 2006 to the commissioning of the CMA CGM Marco Polo in November 2012, they were the largest ships of their kind. The type ship is considered the first ultra-large container ship .
details
The model ship of the class, which is referred to as the PS or E-class series, is the Emma Mærsk . The ships, which belong to the Postpanamax class, were put into service between early September 2006 (Emma Mærsk) and early 2008 (Eugen Mærsk) .
The Emma Mærsk was because of a fire during construction with two-month delay in August 2006 in the Group's own shipyard in Odense completed / Denmark. It has a length of 397 m and a width of 56.4 m, with which it exceeds the second MSC Danit by 5 m in width. The load capacity is 156,907 DWT . The maximum speed is around 26 knots at construction draft .
So that the ships can call at the Bremerhaven container terminal , the turning point in front of the river quay in the Weser was specially widened to 600 m. The Emma Mærsk is so far the only ship of this class that has called at the JadeWeserPort deep-water port in Wilhelmshaven , which was specially designed for container ships of this size (as of 2015).
According to official information, the ships could load 14,770 20-foot standard containers (TEU), 1,000 of which are refrigerated containers. The shipping company Mærsk, which always assumes loaded, 14-ton containers in its information on the loading capacity of a container ship, while other shipping companies indicate the maximum number of containers that can be accommodated on the ship, initially stated the capacity as only 11,000 TEU.
In 2016, a start was made on increasing the container capacity of the ships by around 1,300 TEU by increasing the deckhouses and lashing bridges at Beihai Shipbuilding in Qingdao . The renovations should be completed in 2018. The container capacity increases to 17,816 TEU.
Ship propulsion
The main drive of the ship is performed by a using heavy oil operated, charged two-stroke - diesel engine in cross-head design of the Finnish manufacturer Wärtsilä (type 14RT-flex96C ) with 14 cylinders and a power output of 80,080 kW (108,878 hp). The bore of the motor is 96 cm, the stroke 2.50 m. This results in a displacement of 1,809 l and 5,720 kW per cylinder. Extrapolated, this results in a displacement of 25,320 l with 14 cylinders.
The engine weighs 2,300 tons, the crankshaft alone weighs 300 tons. It transmits a torque of 7,500 kNm at 102 / min on the propeller of MMG . With a weight of 135 t and a diameter of 9.6 meters, this is the largest and heaviest propeller ever built. The Emma Mærsk has four transverse thrusters for berthing maneuvers .
The ships of the Emma Mærsk class have the lowest drag value per displaced ton of all container ships due to their size and optimization of the hull. The underwater hull is also coated with a silicone coating, which, according to the shipping company, saves up to 1,200 t of fuel per year. At full power (Brake Specific Fuel Consumption), the fuel consumption is 0.171 kg / kWh, which corresponds to around 14,380 liters of fuel per hour. This results in 2.7 l heavy fuel oil per container with 14 t and a transport distance of 100 km. The relatively low consumption of the diesel engine is due to its high efficiency of 49.0 percent. Modern car engines are only 35 to 45 percent today.
Exhaust heat recovery
Two additional electrical drives (shaft motors) can be switched to the main drive shaft with a total output of 18,000 kW. Ideally, you get the electrical power from the exhaust gas heat recovery generator , which is driven by the exhaust gas turbine and the steam turbine with 8,500 kW. E-power can also be fed in from the diesel generators of the Caterpillar type - MAK 9M32 with 4,148 kW each.
The exhaust heat recovery converts the machine waste heat with a turbine-driven generator into electrical power when the main engine is rated at its rated output. The total output of the engine system is increased by 9,860 kW or 12.0 percent and the specific consumption drops to 0.158 kg / kWh. For this purpose, part of the exhaust gas volume flow past the exhaust gas turbochargers, as well as the exhaust gases from the turbochargers and the auxiliary diesel engines, are directed to an exhaust gas turbine, which acts on the generator via two gear stages. In addition, a large two-pressure exhaust gas boiler with a preheater and superheater was installed. The superheated steam generates mechanical power in a steam turbine, which acts on the same generator via a gear stage. This increases the overall efficiency of the machine system to around 55 percent.
Routes
All eight ships of the Emma Mærsk class will be mainly used on route AE10 between Gdansk and Shanghai in 2011/2012 and call at the following ports: Gdansk (Poland) - Bremerhaven (Germany) - eastwards: Rotterdam (Netherlands) - westwards: Algeciras (Spain) - Suez Canal - Tanjung Pelepas (Malaysia, Port of Singapore) - Shanghai (China) - Xingang (China, Port of Beijing) - Qingdao (China) - Gwangyang (South Korea) - Ningbo (China) - Yantian (China, Port from Shenzhen ).
One circuit takes a good twelve weeks, so that every one to two weeks a ship of the Emma Mærsk class can be seen in Bremerhaven at Container Terminal IV (in operation since September 2008). The port lay times are between 18 hours in China and 45 hours in Bremerhaven.
Movie
- Mega ships. Emma Maersk - superlative with depth. Documentary, Germany, Canada, 2009, 43 min., Written and directed: John Larose, Andrea Hauner, production: Monaco Film, Exploration Production Toronto, ZDF , arte .
- The container giant. The construction of the largest container ship in the world in Denmark. (OT: Mega Builders. King Of Container Ships. ) Documentary, USA, 2009, 46 min., Script and director: Marco Porsia, production: Discovery Channel , series: Projekt Megabau, German premiere: August 24, 2009 on the Discovery Channel.
The ships
| Emma Mærsk class | ||||||
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| Building name | Construction number |
IMO number | delivery | Later names | Whereabouts | image |
| Emma Mærsk | L203 | 9321483 | August 31, 2006 | in motion |
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| Estelle Mærsk | L204 | 9321495 | November 9, 2006 | in motion |
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| Eleonora Mærsk | L205 | 9321500 | January 12, 2007 | in motion |
_001.jpg)
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| Evelyn Mærsk | L206 | 9321512 | March 29, 2007 | in motion |
_001.jpg)
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| Ebba Mærsk | L207 | 9321524 | June 15, 2007 | in motion |
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| Elly Mærsk | L208 | 9321536 | September 5, 2007 | in motion |
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| Edith Mærsk | L209 | 9321548 | November 14, 2007 | in motion |
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| Eugen Mærsk | L210 | 9321550 | January 29, 2008 | in motion |
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Others
At the end of 2006, Emma Maersk transported thousands of tons of British waste to China for recycling on its journey to southern China. When this became publicly known through media reports, China's state environmental authority assured that it would monitor the further path of this waste critically.
In February 2013, the Emma Maersk's engine room was full of water. She had to be towed from the main shipping lane of the Suez Canal . First, the destroyed stern thruster was sealed so that the containers could be reloaded and the ship repaired, said a spokesman for the shipping company. At the end of February the ship reached Palermo (Sicily) and was repaired there until July 2013.
In the investigation report it was found that a rupture of the stern thruster was responsible for the ingress of water and that the engine room was full despite the watertight bulkheads due to unsuitable cable ducts .
See also
Web links
- Henning Siez: "Emma Maersk" - home for eleven thousand containers , Frankfurter Allgemeine Zeitung
- Measures for reducing emissions on Emma Maersk , AP Moller-Maersk Group (English; PDF; 6.4 MB)
Individual evidence
- ^ Vessels ( Memento March 12, 2012 in the Internet Archive ), Maersk Line.
- ^ Vessels ( Memento December 11, 2006 in the Internet Archive ), Maersk Line.
- ^ Mike Wackett: Maersk upgrades E-class containerships to bolster capacity. The Loadstar, August 4, 2016, accessed January 19, 2017 .
- ^ Eckhard-Herbert Arndt: TEU upgrade for “Emma Maersk” and Co. THB - Deutsche Schiffahrts-Zeitung , April 4, 2018.
- ↑ AE10 Eastbound (accessed July 12, 2020)
- ↑ AE10 Westbound (accessed July 12, 2020)
- ↑ Mega Ships: Emma Maersk - Superlative with depth ( memento from January 2, 2011 in the Internet Archive ), Odeon film.
- ↑ The Container-Riese (King Of Container Ships) , fernsehserien.de.
- ↑ www.emma-maersk.com
- ↑ Emma Maersk is shut down for three months after water ingress. Verkehrsrundschau, February 18, 2013, accessed on August 20, 2013 .
- ↑ Emma Maersk Reaches Fincantieri Repair Yard in Palermo. GCaptain, February 25, 2013, accessed August 20, 2013 .
- ↑ Mike Schuler: Emma Maersk Ready to Return. gCaptain, July 12, 2013, accessed August 20, 2013 .
- ^ Tomas Kristiansen: New theory could explain damages to Emma Maersk. Shippingwatch, March 13, 2013, accessed February 10, 2014 .
- ↑ EMMA MÆRSK - Flooding of engine room on February 1. (PDF, 14.9 MB) Marine Accident Report. Danish Maritime Accident Investigation Board, December 2013, accessed August 22, 2016 .