Engine Room Simulator Briefing

Upload
0
Embed
Share
Upload and view presentations on any device and embed the player to your website! --- > >
Upload PPT
Upload PPT

johnarey_pantua

2021-11-25 published at Education&Career category

Presentation Transcript

1.Engine Simulator Room Familiarization
2.Propulsion plant console
3.ENGINE SYSTEMS
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.Electrical plant console
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.AUXILIARY MaCHINERY console
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.ENGINE SYSTEMS
42.Course: Marine Power Plant Topic: Ancillary and Auxiliary Systems ILO’s: After discussing this chapter, the student should be able to: Explain in detail the flow of the following engine system. Fuel oil system; Lubricating oil system; Instructors Guide
43.Piston cooling system; Jacket cooling system; Starting air system; Accurately identify the principal parts that make up each system; & Correctly state the function of each part
44.ANCILLARY SYSTEM 2.1
45.Ancillary machinery systems - provides basic functions such as cooling, lubrication, exhaust arrangements, starting arrangements, fuel treatment, and so on.
46.Auxiliary machinery - normally fitted for main engine services while other machinery is provided for non-propulsion purposes such as power generation, domestic services, cargo handling, etc.
47.FUEL OIL SYSTEM 2.2
48.FUEL - is something that is burnt to obtain power or heat.
49.Types of fuel used on board the ships: Heavy Fuel Oil (a.k.a. bunker) (High Sulphur Fuel Oil / HSFO) Low Sulphur Fuel Oil (LSFO) Marine Diesel Oil (MDO) & or Low Sulphur MDO Marine Gas Oil & or LSMGO
50.The fuel oil system can be divided into two parts: Fuel Oil Transfer and Purification System Fuel Oil Service System BUNKERING – the process of loading the FUEL OIL or Lubricating Oil Ship bunkering is the process of refueling a ship just as you would get your car refueled.
51.Transfer and Purification – deals mainly with storage and purification of the fuel oil. this part of the system begins from the bunkering manifold and ends in the service tank.
52.FO Purifier
53.B. Fuel Oil Service – FO service line start from the FO Service tank and ends up in the main engine & auxiliary engines.
54.Flow diagram
55.
56.Fuel is loaded to the 2storage tanks via the 1bunker manifold. The fuel is taken from the storage tank by means of fuel oil 3transfer pump to the 4FO settling tanks where it is pre-heated and settled.
57.Depending on the type of oil, storage tank must be heated to 20 to 50oC and the settling tank 60 to 80oC. From settling tank, oil is transferred to the 6FO service tank after passing through the 5FO purifier.
58.From the service tank, oil passes through the 7flow meter and into the 8air separating chamber (mixing tube) where it is suctioned by the 9FO booster pump which delivers the fuel under pressure through the 10oil heater, 11viscosity regulator and 12backwash filter and finally to the 13fuel oil injector system of the engine.
59.The fuel oil injector system has a return or re-circulating line which brings the oil back to the mixing tube.
60.
61.Fuel Oil Injector
62.LUBRICATING OIL SYSTEM 2.3
63.LUBRICATING OIL SYSTEM The LO system can be divided into two parts which uses different type of lubricating oil: System Oil Cylinder Oil
64.Function of Lubrication The lubrication system of an engine provides a supply of lubricating oil to the various moving parts in the engine.
65.Main function: enable the formation of a film of oil between the moving parts, which reduces friction and wear. also used as a cleaner in some engines as coolant.
66.Purifier M/E Lubrication System
67.MAIN LUBRICATING OIL SYSTEM The system oil is held in the main engine sump tank. From there it suctioned by the main LO pump after passing through the suction filter.
68.It is then delivered to the LO cooler. The cooler absorbs heat fro the lube oil and passes it the cooling water. The cooling water used is either seawater from main sea water line or circulating cooling freshwater for the ships centralized cooling system.
69.The automatic temperature control valve acts as a by-pass valve and controls the amount of lube oil entering the cooler. This control depends upon the temperature setting and serves to prevent over cooling of the lube oil.
70.It then passes trough the oil filter which usually of the automatic backwash type for the modern installations. From there, the lube oil enters two lines. The first line goes directly to the main bearing lube oil inlet where it lubricates and cools crankshaft and main bearing. The other line is the suction line for the crosshead LO pump.
71.From there, the lube oil is delivered to lubricate and cool the crosshead. As the lube oil is continuously used, it accumulates dirt, gets contaminated and eventually may form sludge. To prevent contamination, especially the solid contaminants from interfering in the lubrication process and possibly causing damage, the system is also equipped with a LO purifier.
72.The lube oil is suctioned from the lowest point of the sump tank by the LO purifier feed pump and delivers it to the heater and enters the purifier where it is separated from contaminants such as sludge and water.
73.Cleaned oil then returns to the main engine sump tank. The purifier usually is continuously running even when the engine is stopped to effectively clean the system oil.
74.Cylinder Oil Lubricator
75.PISTON COOLING SYSTEM 2.5
76.Path of piston oil cooling
77.ENGINE COOLING SYSTEMS
78.Two Types of Cooling System : Close cooling system Freshwater cooling Open cooling system Seawater cooling
79.In a central cooling system the sea water circuit is made up of high and low suctions, usually on either side of the machinery space, suction strainers and several sea water pumps. The sea water is circulated through the central coolers and then discharged overboard.
80.A low-temperature and high-temperature circuit exist in the fresh water system. The fresh water in the high-temperature circuit circulates the main engine and may, if required, be used as a heating medium for an evaporator.
81.The low-temperature circuit circulates the main engine air coolers, the lubricating oil coolers and all other heat exchangers. A regulating valve controls the mixing of water between the high-temperature and low-temperature circuits. A temperature sensor provides a signal.
82.Freshwater Cooling System
83.Sea Water Cooling System LOW Sea chest Suction HIGH Sea chest Suction Overboard
84.Starting Air System 2.7
85.
86.Main propulsion diesel engines use compressed air as the medium for starting. The components of the air starting system are taken to include compressors and storage bottles in addition to the engine air start arrangement. A minimum of two compressors should be matched to the starting air requirements of the engine.
87.The compressor after-coolers should be protected by a bursting disc. All high pressure lines in the system is to be made of solid drawn pipe. The system starts with the air compressor which charges the air receivers with compressed air up to 30 bar (3.0MPa).
88.From the air receivers, compressed air is led to the main engine starting air line where it reaches the main starting air stop valve and the starting air distributor. The starting air distributor controls the admission of the starting air to each cylinder starting air valve.
89.Air Starting Valve
90.Main Air Compressor
91.Auxiliary Air Reservoir
92.
93.

Latest Release