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MV1452 MARINE BOILERS AND STEAM ENGINEERING
UNIT I
VARIOUS TYPES OF MARINE BOILERS & BOILER MOUNTINGS:
Scotch Boiler, Cochran, Spanner, Clarkson thimble tube, Waste heat recovery calculation, Lamont exhaust gas boiler, Composite boilers, Water tube boilers – Babcock Wilcox, Foster Wheeler – D-type, Double evaporation boilers.
Boiler Mountings: Safety Valves – Improved High Lift, Full lift and full Bore type: Gauge glass – Ordinary plate type and remote Indicator; Automatic feed regulator, three element High & Low water level alarms, Main Steam stop valve, Retractable type Soot blower etc.
UNIT II
OPERATION, CARE & MAINTENANCE OF BOILERS:
Pre-commissioning procedures, Hydraulic tests, steam raising and Operating procedures, Action in the event of shortage of water. Blowing down of boiler, Laying up a boiler; general maintenance, External and internal tube cleaning. Tube renewals, etc., maintenance, inspection and survey of boilers.
Refractory: Purposes of refractory, types of refractory and reasons for failure.
Oil burning: Procedure of Liquid fuel burning in open furnace, Various types of atomizer, Furnace arrangement for oil burning, Boiler Control System i.e. master control, fuel control, air control and viscosity control, Introduction to Automation.
UNIT III
MARINE STEAM ENGINEERING:
Reciprocating/Steam Engines: History of multiple expansion marine reciprocating engines &steam turbines. Description of different types of steam turbines.
Layout of Plant: General layout of plant & description of a modern geared steam turbine installation including auxiliaries in modern use, open and closed feed system.
Selection of materials: Materials used in various components like blades, rotors, casings, sealing glands, gears etc &their justification.
UNITIV
Lubrication of turbines: Suitable oils and their properties, lubrication of main bearings, thrust bearings and gears. Gravity and pressure lubrication-oil system and emergency lubrication arrangement.
UNITV
Condensers: Types of condensers, constructional details, location & working principles, contraction and expansion allowances, leak test. Effect of change of temperature, circulating water quantity, change of main engine power, condenser surface.
Operation and Maintenance: Turbine drain system, turbine gland system, warming through a turbine plant, control of speed and power of propulsion, throttle valve control and nozzle control, emergency controls, emergency operation of turbines, vibration in marine steam turbine, steam turbine losses. Breakdown and faultfinding.
TEXT BOOKS
1. J.H. Milton & R.M. Leach, “Marine Steam Boilers”, 4th Edition, Butter worth, London, 1980
2. C. McBirnie, “Marine Steam Engines and Turbines”, 4th Edition, Butter worth, London 1980.
REFERENCES
1. GTH. Flanagan, “Marine Boilers” 3rd Edition, Butter worth, London, 2001.
2. K.M.B. Donald, “Marine Steam Turbines”, 1st Edition, Institute of Marine Engineers, London, 1977.
3. L. Jackson & T.D. Morton, “General Engineering Knowledge for Marine Engineers”, 4th Edition, Thomas Reeds Publication, United Kingdom, 1986.
4. Thomas D. Morton, “Steam Engineering Knowledge for Marine Engineers”, 3rd Edition, Thomas Reed Publications, London 1979.
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