How can ships save energy and reduce emissions?

As the main means of transportation at sea, along with the continuous development of the economy, the ship is also constantly developing and changing. In recent years, ship energy conservation and emission reduction has become an important topic for communication and development.

How can ships save energy and reduce emissions?

1.Lean shipbuilding

The lean shipbuilding mode shortens the construction period of the ship through the integration of shell and coating, palletized management, and modular shipbuilding, thereby achieving the purpose of saving energy consumption and increasing efficiency.

2.Improve steel utilization

Steel is the main material for the construction of ship products. The utilization rate of steel is the most important indicator for measuring the use of steel in a shipyard. The utilization of steel is directly related to the cost and profit of the ship and reflects the level of enterprise technology and production management. In the whole process of the ship's hull steel sheet nesting, the generation of residual material is inevitable. Popularize and apply automatic optimized nesting software on steel nesting, rationally adjust the nesting arrangement of ship parts, and nest other parts in the openings of sheet metal parts

3.Use welding energy saving measures

Welding is also very energy-consuming during the construction of ships. In recent years, although China's ship welding technology has made great progress, welding costs have dropped significantly, and welding quality has been steadily improved, but it is still compared with shipbuilding in Japan and South Korea. Need to improve further.

4. Use fluid dynamics software to optimize ship design and reduce fuel consumption

Reducing wave-making resistance and friction resistance is the main way to improve the performance of the hull, and the methods of reducing wave-making resistance are mostly concentrated on the bulbous bow and the shape design of the hull. Good bulb nose design can minimize the shock wave between bulb nose and bow. In addition, the advanced antifouling paint and good hull can reduce friction resistance and fuel consumption.

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