by running refrigeration,hydraulic pupm
Main engine is used for propulsion of ship.
Mainly on the main decking of the ship, but they can be trained to operate on the mast, sails and hull of the boat.
A ship may have several engines that do different jobs. These might include generating electricity, running refrigeration, producing hydraulic pressure or running pumps. The main engine on a ship is the engine used to drive the propellers. Sometimes a ship may have more than one propulsive engine but it would be called main engine number....
Maine engine(s) using for propulsion purpose.
The propulsion engine on a ship or aircraft is the MAIN engine. -Many aircraft and almost all ships have smaller engines just to produce electrical and hydraulic power.
If they operate the ship, they are the "ship's crew".
main part of a ship
Their main ship was the Mayflower.
Followings could be some reasons for raise in fuel consumption of a ship: 1- Bad quality fuel 2- faulty fuel pump/ fuel valves (main engine) 3- ship's bottom being dirty 4- faulty turbo charger (main engine) 5- blow by of the piston rings (main engine) 5- leaky inlet/exh. valves (main engine) 6- leakage in fuel system (pipping) 7- faulty fuel oil separator 8- Unprefect bunckering 9-.....etc.
Importance of watch engine of the ship?
The main engine of a vessel is primarily responsible for propelling the ship and is typically larger and more powerful than auxiliary engines. Auxiliary engines provide additional power for onboard systems, such as generators for electricity, pumps, and other machinery. While the main engine operates during navigation, auxiliary engines may function continuously or as needed, depending on the ship's operational requirements. Essentially, the main engine is crucial for movement, whereas auxiliary engines support various operational functions.
The heat engine can convert internal energy of sea water if there is a sink at temperature lower than temperature of sea water. Since there is no such sink and hence a ship can not use the internal energy of sea water to operate the engine.