How does the Engine of a ship starts?

Answer 1

THE last vessel of any size I worked on used air to push a starter.The motor it self was started by opening a valve on all of the pistons on the motor to relieve the pressure,and starting 1 cylinder at a time.As each piston is fired ,the valve is closed and move to the next piston ,until the whole bank of pistons is fired.This was an old locomotive style motor

Answer 2

First and foremost, present engines don't really use keys anymore to start anything on the ship. Manual labour is commonly used to press buttons and monitor charts and stuff to make sure nothing goes wrong, there are a set of procedures but what's below is basic.

Auxillary air compressor starts generator at around 7 bars(i think) starts the generators(how? explained later simillar as engine, except uses a spark plug i think) which pumps air to an air tank. Raising the pressure to 10 bars(which trust me it's a lot. enough to crush you like a can or maybe like a juice carton).

This pressured air will blow into the piston and it's jacket, which is found in an engine which is almost 3 storeys high. The air helps to begin rotary motion of crankshaft.

The piston will begin to compress it's own air supplied from the outside air. It'll compress the air to a very high pressure till it becomes seriously hot.

And when it reaches top-dead centre(the highest point where the piston head is closest to the top) the diesel fuel injector will inject the fuel into the jacket. The diesel fuel droplets disperst into minute particles and BOOM!!!! (no spark plug needed)
The force pushes the piston down, turning the crankshaft, which in turn also helps to move other stuff eg, propellor, cam-shaft for mountings, generators, and also at the same time help push other pistons up to compress that piston's air till it reaches top-dead centre.

Any other people can refine this answer? got 2 say that this is what i've learned in my first year diploma course and seriously need to learn some more.

Answer 3

If you are tlking about a full rigged ship, put up the spanker sail first. In a steam powered ship. of which there are many, the boilers need to be started a day early. In diesel ships they start the donkey engine to start the big ones. A tug pushes the ship from the dock.

Answer 4

Slow speed diesels require a large volume of compressed air to turn pistons. When pistons are moving fast enough to support compression without stalling, fuel is injected into the cylinder. But before using air a long list of pre-start procedures must be followed to prevent damage to the engine. Fuel must be pre-heated. Cylinder oil, and crankcase oil must be circulated. Cooling system must be flowing. Ready service fuel tanks are filled. Engines powering large cargo ships are five stories tall and produce more than 2200 hp per cylinder. There is no transmission. The screw moves as fast as the piston, about 90 rpms. It's not as easy as turning a key.

Answer 5

The large ships with diesels use air pressure.

Other ships that use boilers use a match. It takes about 6 hour to build enough steam to get underway.

Nuke boats use magnets to pull the control rods out and expose the core. They work like steam ships otherwise.

Answer 6

well with pistons bigger than your dinner table they start very slowly, very very slowly. different companies use different things, i remember when they use to use kawaisaki motorcycle engines to start the motors on 18 wheelers, we called them pony motors. i have converted many to a regular starter. they also use air startes in some situations but i havent worked on any BIG ships so i cant give you an honest answer. although i did work on a tug boat engine, 40 ft long, 16 ft wide and 8ft tall and it used a 24 volt starter

Answer 7

With a starter, the same as a car, or with a pull cord like a lawn mower (boat sized).

Answer 8

With a push of a button

Answer 9

depends on the type of engine doesnt it???
Gas turbine,Steam turbine,,Diesel,,,,Gasoline,,,

Answer 10

need more info