3E-class ship layout
The design work of the 3E-class container ship had begun as early as 2010. At that time, Maersk’s idea was to build a container ship suitable for the Asia-Europe route. , it can carry more cargo per voyage, run out less fuel, and be as environmentally friendly as possible. The ship was originally designed to have a length similar to that of the Emma Maersk, but would need to carry 2,500 more containers and be optimized at a lower speed.
In order to carry as many containers as possible without increasing the length too much, the ship's hull adopts a U-shaped design. The previous generation "Emma Maersk" was V-shaped. The advantages of the U-shaped More containers can be loaded in the cabin, so the 3E class is only 4 meters longer and 3 meters wider than the E class, but it can carry 2,500 more containers, and the loading capacity has increased by 16. The 3E class can load 23 rows of containers, which can better Taking advantage of the current port crane's reach, the "Emma Maersk" is in row 22.
Layout features.
The deckhouse and chimney of the "EmmaMaersk" are arranged in the middle of the ship, and the enclosed flybridge is located on the top of the deckhouse. The deckhouse of the 3E class ship is relatively forward, the bridge is located on the top of the deckhouse, the engine room is located at the rear of the ship, and the chimney is located above the engine room. This arrangement allows containers forward of the bridge to be stacked higher while still maintaining sufficient visibility to meet the visibility requirements of the SOLAS V/22 regulations for large container ship bridges. On the other hand, the living areas Noise and vibration levels are also lower, and the hull strength is increased. However, this layout feature is not the first of its kind in the 3E class. Samsung Heavy Industries’ 14,000TEU and 16,000TEU container ships and STX’s 13,000TEU container ships all adopt this design.
As can be seen from the layout of Maersk's four types of container ships from large to small in different years, as the packing volume becomes larger and larger, the bridge of the container ship is constantly moving. Moving forward, up to the 3E-class ships, the above-mentioned "double island" arrangement in which the wheelhouse and engine room are separated is adopted.
Comparison of the bridge layout of Maersk Type IV container ships
3E-class ship type optimization
In order to achieve the best efficiency, the design team of the 3E-class ship The ship shape has been optimized. First, CFD software is used to optimize the hull shape, such as the bow part. The design plan before optimization is shown in the picture above (top), and the design after optimization is shown in the picture (bottom). The red and blue parts of the figure show the waves generated at the bulbous nose. Through optimization, the waves generated here are minimized, thereby reducing energy loss. It was during the CFD optimization process that the design team realized that the vessel's lower speed allowed the ultra-long-stroke engines to operate at lower rpm, thus reducing fuel consumption by using two engines than using a single engine (high speed) Save more energy.
Secondly, a 10-meter-long, 1:38 scale model was used for ship model testing to examine the status of the 3E ship under normal sea conditions and extreme sea conditions. Finally, during the sea trial phase, all onboard systems, fuel consumption, alarms, vibration, noise, power management, etc. will be verified.