Ship diagram pdf

The use of a ship circuit diagram is to enable the reader to understand the operation of the circuit, to follow each sequence in the operation from the moment of initiating the operation e. If the equipment fails to operate correctly, the reader can follow the sequence of operations until he comes to the operation that has failed. The components involved in that faulty operation can then be examined to locate the suspect item.

There is no need to examine other components that are known to function correctly and have no influence on the fault, so the work is simplified. Necessary cookies are absolutely essential for the website to function properly.

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A circuit diagram is an essential tool for fault finding on ship electrical system. Follow Us. Shop for mariners. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More. Close Privacy Overview This website uses cookies to improve your experience while you navigate through the website. Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website.

Having bow thrusters greatly affects the overall running cost of a ship by reducing part of port cost for tug A small boat used by port authorities to help safely dock a ship assistance. For ships having bow thrusters it is required to have proper markings on both sides above waterline.

These thrusters are mostly powered electrically using a prime mover attached to the impeller shaft using a bevel gear assembly. For some ships they are also powered hydraulically where electrical option is not possible or is unfeasible. Function: A ship is maneuvered using propulsion and rudder angle variation. A rudder is a blade like structure situated at aft of propeller which moves horizontally across the medium to steer a ship. Rudder angle is changed by a value to get desired change in ship direction.

But what if the speed of ship is too slow to be effectively controlled by rudder angle? This is where the bow thrusters came into picture assisting captain to steer ship even at very low speed. It is a place on ship where the crew resides or live. Together with offices, crew cabins, gym, prayer room Few ships , salon, recreation room, laundry, hospital and galley it is the heart of a ship next to engine room and bridge.

A salon on board is the common area or living space for its crew, passengers and any visiting authorities to interact; and often include common room and dinning space. On another hand galley is just a nautical term for kitchen; where food is prepared. Being one of the key parts of ship; accommodation accounts for major systems on board including; fresh water system, refrigeration system domestic , garbage disposal system, sewage treatment plant and air conditioning for accommodation block.

Under international and local maritime laws of flag state it is required to have accommodation of all vessels including; passenger ship, cargo ship, salvage ship, tug and dredger above the summer load line situated aft or amidships of the ship structure. Function: An accommodation accounts for the living space of the ship. Under maritime labor convention MLC ; it is required by law to provide adequate accommodation facilities to ships crew and officers along with proper recreational facilities.

In this it is stated to have proper provision for safety, accommodation, health and accidents of crew on board ship. It is now required to have hospital accommodation, proper ventilation, lighting, head space, heating with adequate size of crew cabins.

A deck is a floor or covering to the ships hull structure. A ship can have different decks at different section or parts of ship; namely upper and lower deck or deck 1, deck 2 and deck 3 in a sequential downward way. What it means is that; the topmost deck exposed to weather is called main deck or weather deck. The levels and floors below weather deck is called deck 1, while one below deck 1 is called deck 2 and so on.

On other hand decks or floors that does not extends from aft to forward are generally called as level. The main deck on the ship which run through its entire length is called main deck. For most ships it also the top most deck and so also called the upper deck; but in war ships its a separate deck below the upper deck. The deck below upper deck is called lower deck while any part of ship which is exposed to open weather is called whether deck.

The deck situated in the aft side of a ship is called poop deck; while the part of deck situated in between accommodation and forecastle is called fore deck. Function: One of many parts of ship; a deck is the plane that holds the hull structure providing different celling floor to the ship. The other job it do is to provide space and floor for the equipment and people to stand and work while protecting them from outside weather.

A hull is that part of ship that extends below the waterline to cover and protect water from getting in. You can consider it as the shell which protects the inside treasures from outside environment. Everything that is stored and situated within the main ship structure is covered and protected by the ships hull. It includes the key parts of the ship such as bow, deck, the bottom keel and the both sides of the ship. They are made up of series of plates jointed together called stakes along with other structural member such as plating and stiffeners.

A stiffener consists of structural parts such as longitudinal and transverse frames, bulkhead stiffness, girders and beam. While ships plating consists mainly of deck platting along with bottom, bulkhead and side platting.

Ships hull are designed as such to offer minimum resistance to water, is feasible and economical to construct without losing on much needed cargo space. Function: Made of steel the key role of ships hull is to maintain its water tight integrity and reduce water drag.

And so hull plays a major role in determining overall efficiency of a ship. Ships hull are thus coated with special paints that not only reduce frictional drag but also avoid marine growth which further increase the resistance to ships motion.

Thus ships hull are cleaned and repainted with special coating during dry dock operation. A keel is a part of ships hull that is responsible for providing strength to the ships structure; spreading stress and load equally along its longitudinal sides.

Due to its this property to hold and support ship structure it is often termed as the backbone of the ship. In simple terms it provide stability to a ship and increase its effective speed. The introduction of keel in shipping reduce much of the work regarding stabilizing ship structure. It was first known to be used by vikings to reduce lateral movement of their boats at the time.

A keel is nothing but a thick plate that runs longitudinal across the ship from stern to stern; passing through the centerline of ships bottom structure.

There are three main types of keels used in marine industry; flat keel, duct keel and bar keel. A flat keel is used in all major ships in operation; bar keels are used when the ship has to work in shallow water while duct keels are preferred for offshore vessels and double hull tankers.

Function: Being one of the key parts of ship; it helps stabilize and support ship structure. It also plays an important role increasing the effective speed of a ship. With displacement of ship dependent upon the depth of keel from water line; it is helpful to measure draft and reserve buoyancy of ship.

A freeboard stands for the part of ships hull located above the waterline. It is the distance between the upper deck of ship and the point of waterline. The freeboard of a ship is not fixed but rather depends on the amount of cargo it carries.

It is required at all times to maintain a minimum freeboard at all times to avoid ship from sinking. Thus to ensure safety of ships at sea; load line marking is used to ensure maximum possible draft for safe voyage.

The distance between the upper deck and the load line accounts for the minimum freeboard of a ship. Under international convention on load line ICLL ; it is required by law to maintain a minimum freeboard at all times. This puts a cap on the amount of cargo a ship can load. By law it is required by ships to load only up to the load line marking for the designated water type. Thus it is a must for ships to have proper load line marking amidships on either side of the ships hull.

Function: The role of freeboard among different parts of ship is to maintain ships stability and avoid it from sinking. These load lines ensure that the ship have minimum sufficient freeboard at all times for safe voyage. An engine room is the power house of the ship located in the lowest most deck on aft of the ship.

It contains important machinery such as main engine, auxiliary engine Alternator , shafting, boiler, fresh water generator, air compressor, calorifier, purifier, incinerator, pumps, heat exchangers, workshop machineries etc. If you ask a mariner about engine room the first thing he might tell; its hot, noisy and full of vibration. The average temperature of engine room is always above 45 degree centigrade.

All the machinery in engine room is well segregated across different places on three different decks named utility deck, weather deck and machinery deck.

With all the propulsion and auxiliary machinery installed in place it is also called as the heart of the ship. All the machinery in engine can be controlled from a control room called Engine control Room or ECR in short.

It is the only place in engine room where you will get relief from hot temperature and much of the noise. Function: The key role of engine room is to hold all the key machinery and auxiliaries required for different operations on board ship.

On deck one it usually has control panels for diesel generators and pump, workshop, store room, settling tanks, service tanks, fresh water expansion tanks, Inert gas platform, deck air compressor, air bottles etc.

On deck two it contains; Fuel oil heaters, purifiers, boilers, main air compressor, diesel generators, fresh water generator etc. While the deck 3 mainly consist of main engine, different supporting coolers, oily water separators etc. A funnel is what from which the exhaust gases are released into atmosphere. You can consider it as the chimney of the ship. Since the introduction of mechanized ship; it has been an integral part of the ships structure. The cross section or width of these funnel largely depends on the amount of exhaust engine room produce.

In early days of shipping it was used to release everything that the ship emits; but nowadays it is used within the limits of controlled emission with shoot collection in place to reduce pollution. All the shoot that is collected in the shoot collection tank is then later discharged to the port authorities.

If not possible they are discharged overboard via an eductor recording the time and amount in garbage record book. If you look up-close carefully; will find that these funnels are in fact not that straight but inclined to an angle. This is done deliberately to assist the flow of flue gas away from the navigation bridge and ships deck.

Function: Being one of the parts of ship the function of a funnel is to safely release exhaust gas produced in engine room to the outside atmosphere. Together with the forward motion of the ship and funnel inclination towards the aft; exhaust gas is easily moved away from ship avoiding possible hindrance to ship navigation. If engine room is the heart of the ship; navigation bridge is its brain. It is an wide platform on top of the accommodation from which the ship is controlled.

They are many a times aided with additional narrow passage called bridge wing; to allow broader and better view of the outside to safely maneuver the ship. The main part of the bridge from which the ship is controlled and steered is called pilot house.

According to the maritime rules and regulation it should be constructed such that; it provide a clear view from 0 port to 0 starboard from conning position.

It is the position in the navigation bridge from which the duty officer command, monitor and maneuver a ship. Under normal condition an able seaman is present with duty officer in the navigation bridge. Under dangerous maneuvers or near port; captain is present in the navigation room with assisting duty officer, able seaman and a pilot If provided. A ships bridge is equipped with equipments including; gyroscope, radar, magnetic compass, auto pilot, sonar, rudder angle indicator, G.

S, ships horn, navigation lights, signaling flags etc. Function: Out of various parts of ship; the function of navigation bridge is to provide ample space for officers to look out and maneuver safely.

It also holds necessary equipments and controls to change ships speed and its direction while monitoring outside sea condition and establishing proper means of communication. While not all ships have them but most do to help assist in cargo operation and readjustment of cargo in between the voyage if necessary.