1. intro to marine engineering

7/31/2019 1. Intro to Marine Engineering

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Introduction to Marine Machinery


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INTRODUCTION TO MARINE MACHINERY

Before studying about individual machinery,identify all the machinery that are commonlyinstalled onboard ship and briefly explaintheir functions.

Working with a partner, list down as manyship machinery as you can remember.

Discuss with your partner and write down

the short description of their functions. You have 10 minutes for this exercise.


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SO WHAT IS MARINE ENGINEERING?

Boilers Steam turbines

Gas turbines

Diesel engines Pumps

Heat exchangers

Distilling plantsAnd much more


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CAN YOU IDENTIFY THESE MACHINERY?
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HISTORICAL DEVELOPMENTS OF HEAT ENGINES.

1769 - James Watt patents his first improved steam engine1824 - Nicolas Lonard Sadi Carnot developed the Carnot cycle, a

hypothetical engine that is the basic theoretical model for all heatengines. This gives the first early insight into the second law ofthermodynamics.

1859 - Etienne Lenoirdeveloped the first internal combustion engine, asingle-cylinder, two-stroke engine with electric ignition of illumination gas(not gasoline).

1877 - Nikolaus Otto patents a four-stroke internal combustion engine.

1884 - Charles A. Parsons builds the first modern Steam turbine.

1892 - Rudolf Diesel patents the Diesel engine where a high compressionratio generates hot gas which then ignites an injected fuel.

1937 - Hans von Ohain builds a gas turbine

1954 Introduction ofturbocharging on 2-S diesel engines
http://en.wikipedia.org/wiki/James_Watthttp://en.wikipedia.org/wiki/Steam_enginehttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Second_law_of_thermodynamicshttp://en.wikipedia.org/wiki/Second_law_of_thermodynamicshttp://en.wikipedia.org/wiki/Etienne_Lenoirhttp://en.wikipedia.org/wiki/Internal_combustion_enginehttp://en.wikipedia.org/wiki/Nikolaus_Ottohttp://en.wikipedia.org/wiki/Charles_A._Parsonshttp://en.wikipedia.org/wiki/Steam_turbinehttp://en.wikipedia.org/wiki/Rudolf_Dieselhttp://en.wikipedia.org/wiki/Diesel_enginehttp://en.wikipedia.org/wiki/Fuel_injectionhttp://en.wikipedia.org/wiki/Hans_von_Ohainhttp://en.wikipedia.org/wiki/Gas_turbinehttp://en.wikipedia.org/wiki/Gas_turbinehttp://en.wikipedia.org/wiki/Hans_von_Ohainhttp://en.wikipedia.org/wiki/Hans_von_Ohainhttp://en.wikipedia.org/wiki/Fuel_injectionhttp://en.wikipedia.org/wiki/Diesel_enginehttp://en.wikipedia.org/wiki/Rudolf_Dieselhttp://en.wikipedia.org/wiki/Steam_turbinehttp://en.wikipedia.org/wiki/Charles_A._Parsonshttp://en.wikipedia.org/wiki/Nikolaus_Ottohttp://en.wikipedia.org/wiki/Nikolaus_Ottohttp://en.wikipedia.org/wiki/Nikolaus_Ottohttp://en.wikipedia.org/wiki/Internal_combustion_enginehttp://en.wikipedia.org/wiki/Etienne_Lenoirhttp://en.wikipedia.org/wiki/Second_law_of_thermodynamicshttp://en.wikipedia.org/wiki/Second_law_of_thermodynamicshttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Nicolas_L%C3%A9onard_Sadi_Carnothttp://en.wikipedia.org/wiki/Steam_enginehttp://en.wikipedia.org/wiki/James_Watt


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FUNCTIONS SUPPORT THE MISSION

Propulsion and Steering

Electrical generation and distribution

Cargo Handling Personnel Support

Navigation and Communication

General Services


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PROPULSION AND STEERING FUNCTION

Fuel choices

Nuclear

Heavy (residual) fuel oil

Light (distillate) fuel oil

Coal


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NUCLEAR POWER

Reactor

Pressurize

Steam generator Reactor coolant

pump

Secondary system


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NUCLEAR SHIP SAVANNAH

Length 596 feet

Beam of 78 feet

10,000 deadweight tons

10 watertight bulkheads

Designed to carry 60

passengers in 30staterooms.


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SAVANNAH POWER PLANT

20,000 horsepower 107 Shaft rpm

21 knots

8,200 kg of uranium Primary water

8,640,000 lb/hr

1750 psi, 508F

Steam

245,920 lb/hr

485 psi


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Prime mover choices

Steam turbine

Diesel engine

Medium speed

Slow speed

Gas turbine


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Steering choices

Electro-hydraulic

Azipod propulsion

Cycloidal propulsion - Voith Schneider propeller

(VSP)


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SYSTEMS PERFORM THE FUNCTION

Propulsion function (slow speed diesel)

Fuel oil system

Lubricating oil systems

Cylinder wallsBearings

Cooling water system

Intake air systemExhaust system

Control system


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CARGO HANDLING FUNCTION

Tankers

Cargo heating system

Cargo pumping system

Inert gas system

Crude oil washing system

Containerships

Container lashing system

Container power system

Container unloading system


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PERSONNEL SUPPORT FUNCTION

Fresh water system

Sanitary system

HVAC system

Food storage and preparation systems

Lighting system

Entertainment system Internal communication system


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COMPONENTS MAKE UP A SYSTEM

The HVAC system consists of

Refrigerant compressors

Piping & fittings

Heat exchangers

Ducts

Fans


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GENERAL SERVICES FUNCTION

Fire fighting system

Lifeboat system

Navigation lighting systemGeneral lighting system

Mooring and anchoring system

Stabilizer system


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ELECTRICAL GENERATION AND

DISTRIBUTION FUNCTION

Prime movers

Steam turbines

Medium speed diesels

Gas turbines

Generators

Switchboards

Transformers, rectifiers & converters


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ELECTRICAL GENERATION AND

DISTRIBUTION FUNCTION

Motors

Wiring

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