Fri 20 Nov 2009, 07:18 GMT

Bulb design change saves 15,000 tonnes of fuel


Maersk Line increases fuel efficiency by implementing an alternate bulb design.



Maersk Line has revealed that it will save 15,000 tonnes of fuel and reduce CO2 emissions by 45,000 tonnes each year, thanks to improvements in the design of 22 new container vessels.

Maersk Maritime Technology was able to increase the vessel’s efficiency by 5.2 percent by testing and implementing an alternate design for the bulb – a bulbous-shaped piece on the bow of the ship, designed to decrease resistance as the ship moves through water.

This is the second time the team at Maersk Maritime Technology has achieved significant savings from a bulb design change.

“We’ve now proved twice in a row that by challenging shipyard designs and combining model tests with operational profiles, we can make major reductions in fuel consumption,” said Troels Posborg, Senior General Manager at Maersk Maritime Technology.

To accomplish the design change, the advanced Maersk Ship Performance System provided a complete historical picture for different shipping routes and generated full operational profiles for the new vessels involved.

Maersk Maritime Technology then designed alternate bulb designs, which were tested by The Hamburg Ship Model Basin, a leading expert in naval design. Maersk Line chose the most efficient design, which will now be implemented in the new vessels.

Earlier this year Maersk Group announced that it had reduced its impact on the environment with a drop of 9 percent in carbon dioxide (CO2) emissions in 2008 compared to the previous year. The figure represents a fall of 5 million tonnes, which is said to have been mainly achieved through lower fuel consumption by its ships.


Tangier Maersk vessel. Maersk completes first US ethanol bunkering of a deep-sea container ship  

Shipper tests US-produced corn ethanol as a marine fuel aboard the Tangier Maersk.

CMA CGM Alceste naming ceremony. CMA CGM names methanol-powered vessel after Molière’s Alceste  

Ship features a MAN B&W 8G85ME two-stroke engine configured to run on conventional marine fuel and methanol.

Cutaway illustration of a battery-electric ship. Why batteries still cannot power ships across oceans  

Battery-electric ships dominate short-sea routes, but energy-density and infrastructure constraints keep deep-sea propulsion out of reach.

VPS logo. VPS to run marine fuel management course in Singapore  

Two-day programme in November covers fuel handling, testing and decarbonisation rules, including a laboratory tour.

Rio de Janeiro aerial view. Petrobras launches HSFO bunker sales in Rio de Janeiro  

Brazilian supplier begins prompt HSFO deliveries in Rio, pricing the fuel more than $80 per tonne below VLSFO.

Launching ceremony of MSC Alina X. Changhong International launches eighth LNG dual-fuel container ship for MSC  

10,300-TEU vessel is designed to meet ammonia- and methanol-ready specifications.

Kokuryu Maru vessel. Japan completes first methanol-fuelled coastal vessel and conducts inaugural bunkering  

Mitsubishi Gas Chemical, Kokuka Sangyo and Hanshin Diesel Works mark the completion of methanol-fuelled chemical tanker Kokuryu Maru.

Eleven Energy logo. Eleven Energy recruiting trader for new Singapore office  

Saudi bunkering firm looking to hire in Asian city-state ahead of planned January 2027 start date.

Singapore skyline. VPS advertises for bunker surveyor role in Singapore  

Testing and inspection firm seeks candidate to conduct bunker fuel surveys under Singapore Standards SS 648 and SS 600.

RCL vessels naming ceremony. RCL names first three of eight dual-fuel-ready 4,488-TEU vessels in China  

Regional Container Lines takes delivery of Anitta Bhum on day of naming ceremony.