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Презентация на тему "Different types of marine engines"

библиотека
материалов
 Different types of marine engine
There are four main types of marine engine: the diesel engine the steam turbi...
Diesel Engine The diesel engine is a form of internal combustion engine. Its...
 The diesel engine is a form of internal combustion engine.
Low-Speed Engine Large diesel engines, which have cylinder nearly 900 mm in d...
The MAN B&W 5S50MC 5-cylinder, 2-stroke, low-speed marine diesel engine.
Medium-Speed Diesel Engine More and more of the larger merchant vessels are b...
Steam Turbine In steam turbines high pressure steam is directed into a series...
Turbines are often used in container ships.
Gas turbine Gas turbines differ from steam turbines if that gas rather than s...
A gas turbine engine is very light and easily removed for maintenance. It is...
Marine Nuclear Plant Nuclear power in ship has mainly been confined to ice-br...
Thank You For Attention!
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Описание презентации по отдельным слайдам:

№ слайда 1  Different types of marine engine
Описание слайда:

Different types of marine engine

№ слайда 2 There are four main types of marine engine: the diesel engine the steam turbi
Описание слайда:

There are four main types of marine engine: the diesel engine the steam turbine the gas turbine the marine nuclear plant Each type of engine has its own particular application.

№ слайда 3 Diesel Engine The diesel engine is a form of internal combustion engine. Its
Описание слайда:

Diesel Engine The diesel engine is a form of internal combustion engine. Its power is expressed as break horse power (b.h.p). This is the power put out by the engine. Effective horse power is the power developed by the piston in the cylinder, but some of is lost by friction within the engine. This power is now expressed in kilowatts.

№ слайда 4  The diesel engine is a form of internal combustion engine.
Описание слайда:

The diesel engine is a form of internal combustion engine.

№ слайда 5 Low-Speed Engine Large diesel engines, which have cylinder nearly 900 mm in d
Описание слайда:

Low-Speed Engine Large diesel engines, which have cylinder nearly 900 mm in diameter, turn at the relatively slow speed of about 145 rpm and less. They are known as low-speed diesel engines. They can be connected differently to the propeller without gearing. Although higher power could be produced by higher revolutions, this would reduce the efficiency of the propeller, because the propeller is more efficient the larger it is and the slower it turns.

№ слайда 6 The MAN B&W 5S50MC 5-cylinder, 2-stroke, low-speed marine diesel engine.
Описание слайда:

The MAN B&W 5S50MC 5-cylinder, 2-stroke, low-speed marine diesel engine.

№ слайда 7 Medium-Speed Diesel Engine More and more of the larger merchant vessels are b
Описание слайда:

Medium-Speed Diesel Engine More and more of the larger merchant vessels are being powered by medium-speed diesel engines. These operate between 150 and 450 r.p.m, therefore they are connected to the propeller by gearing. They are cheaper than slow-speed diesel engines, and their smaller size and weight can result in the smaller cheaper ships.

№ слайда 8 Steam Turbine In steam turbines high pressure steam is directed into a series
Описание слайда:

Steam Turbine In steam turbines high pressure steam is directed into a series of blades or vanes attached to the shaft, causing it to rotate. This rotary motion is transferred to the propeller shaft by gears. Steam is produced by boiling water in the boiler, which is fired by oil. Recent developments in steam turbines which have reduced fuel consumption and raised power output have made them more attractive as an alternative to diesel power in ships. Turbines are often used in container ships.

№ слайда 9
Описание слайда:

№ слайда 10 Turbines are often used in container ships.
Описание слайда:

Turbines are often used in container ships.

№ слайда 11 Gas turbine Gas turbines differ from steam turbines if that gas rather than s
Описание слайда:

Gas turbine Gas turbines differ from steam turbines if that gas rather than steam is used to turn the shaft. These have also become more suitable for use in ships.

№ слайда 12 A gas turbine engine is very light and easily removed for maintenance. It is
Описание слайда:

A gas turbine engine is very light and easily removed for maintenance. It is also suitable for complete automation.

№ слайда 13 Marine Nuclear Plant Nuclear power in ship has mainly been confined to ice-br
Описание слайда:

Marine Nuclear Plant Nuclear power in ship has mainly been confined to ice-breakers. A nuclear-powered ship differs from a conventional turbine ship in that it uses the energy released by the decay of radioactive fuel to generate steam. The steam is used to turn a shaft via a turbine in the conventional way.

№ слайда 14 Thank You For Attention!
Описание слайда:

Thank You For Attention!

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