SGM: Shaft Generator motor

Electricity consumption: reduced by 20%, fully utilized: ship's surplus energy is easy to maintain

Shaft generator (also known as shaft generator or shaft generator system) is a device that converts the mechanical energy of a ship's main engine into electrical energy. It is installed on the main shaft of the ship and drives the generator to generate electricity by utilizing the rotational kinetic energy of the main engine. This system is widely used on ships, especially in situations where high reliability and energy efficiency are required.

working principle

1. Installation of shaft generator

-Installation position: The shaft generator is usually installed on the main engine shaft of the ship, directly connected to the rotating shaft of the main engine.

-Mechanical connection: The generator is connected to the main shaft through a mechanical connection device (such as a coupling) to ensure that the generator can rotate with the rotation of the main shaft.

2. Power transmission

-Main engine rotation: The rotational kinetic energy of the ship's main engine is transmitted to the shaft generator through the shaft.

-Generator operation: The rotor inside the generator generates a magnetic field through the rotation of the main shaft, which cuts through the stator of the generator and produces alternating current.

3. Electricity generation and utilization

-Electricity output: The generated alternating current is transmitted to the ship's power system through the cables of the generator, supplying various electrical equipment and systems on board.

-Power management: The power output of the generator can be integrated with the ship's power management system to ensure the stability and effective utilization of electricity.

Energy saving effect

1. Improve energy utilization efficiency

-Mechanical energy conversion: Axial generators use the mechanical energy of the host to directly generate electricity, reducing the additional power demand of traditional generator sets. This direct conversion improves energy utilization efficiency and reduces energy losses.

2. Reduce fuel consumption

-Fuel saving: As the main engine shaft generator utilizes the rotational kinetic energy of the main engine rather than additional fuel to drive the generator, it reduces the demand for additional fuel power generation. This can reduce the overall fuel consumption of the vessel, especially under operating conditions of the main engine.

-Actual energy saving: According to practical applications, shaft generators can reduce fuel consumption by 5% to 10%. This depends on the specific operating mode of the vessel and the efficiency of the generator.

3. Reduce operating costs

-Reduce equipment quantity: The shaft generator system reduces the demand for traditional generator sets, lowers the number of equipment and maintenance costs in the ship's power system.

-Simplified maintenance: As the generator is directly driven by the main engine, there is no need for additional diesel generator sets or other power generation devices, thus simplifying maintenance work.

4. Reduce emissions

-Reducing emissions: By reducing the demand for additional fuel power generation, shaft generator systems help to reduce the emission of carbon dioxide (CO ₂) and other pollutants from ships. The actual emission reduction depends on the fuel saving ratio and the operation of the vessel.

Marine shaft generators not only improve the energy efficiency of ships but also reduce operating costs and environmental impact by optimizing energy conversion and reducing additional power demand.