Power generation and distribution

Auxiliary engines are necessary for ships because they provide power to various systems and equipment on board. While the main engines are responsible for propelling the ship forward, they cannot generate enough electricity to power all of the ship's systems. Auxiliary engines provide the extra power needed to keep the ship running smoothly. Some specific systems that rely on auxiliary power include:

Lights and power outlets - necessary to provide light throughout the ship and to power various electrical equipment such as computers, telephones and other equipment.
Air conditioning and refrigeration - essential for maintaining a comfortable living and working environment on board and keeping food and other perishable items fresh.

Communication equipment - Ships rely on a variety of communication equipment, such as radio, satellite phones and radar systems, to maintain contact with other ships and port authorities.

Basic backup system

The auxiliary engine provides backup power in case of an emergency, ensuring that if the main engine fails, the ship will not run aground and be vulnerable to hazards such as storms, ocean currents and other ships. Critical systems that rely on auxiliary power include:

Navigation systems - Auxiliary power supplies enable these systems to guide the ship safely through the water. Navigation equipment such as GPS, radar and depth sounders can be powered by auxiliary engines.
Communication systems - In an emergency, communication is important to ask for help or to coordinate with other vessels. Auxiliary engines can power communications equipment such as radios, satellite phones and distress beacons.

Emergency lighting - If the ship loses power, auxiliary engines can power emergency lighting, which is essential to guide the crew safely to their arrival.

Fuel efficiency and emission reduction

Auxiliary engines enable ships to operate more efficiently and reduce emissions by using smaller engines to power non-propulsion systems. This reduces fuel consumption and emissions as the main engine is most efficient at high loads. In addition, some auxiliary engines emit fewer pollutants than older engines and are more fuel efficient. Using auxiliary engines to improve fuel efficiency and reduce emissions offers the following benefits:

Reduced fuel consumption - Ships can reduce overall fuel consumption, save money and reduce environmental impact by using smaller, more fuel-efficient engines in non-propulsion systems.
Reduce emissions - Ships can meet emissions regulations and reduce their environmental impact by using auxiliary engines designed to reduce pollutant emissions and improve fuel efficiency.
Optimising load - Using smaller engines in non-propulsion systems enables ships to optimise the load on their main engines, increasing their overall efficiency and reducing engine wear.

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