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MV1252 MARINE HEAT ENGINES
Posted Date: 25 Apr 2008 Resource Type: Articles/Knowledge Sharing Category: Syllabus
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Posted By: Nithya Krishna Member Level: Gold
Rating:  Points: 5
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MV1252 MARINE HEAT ENGINES
UNIT I
Steam and vapour power cycles: Carnot cycle for steam and ideal efficiency. Rankine cycle with dry, saturated and super heated steam. Modified Rankine, Reheat and Regenerative cycles. Binary vapour power cycles. Feed pump working. Isentropic efficiency, cycle efficiency, work ratio. Reheating and Regenerative feed heating and their effect on thermal efficiency.
UNIT II
Marine Steam Engine: Modified Rankine cycle for steam engines. Hypothetical indicator diagram. Mean effective pressure and work transfer – Diagram factor. Indicated Power – Specific steam consumption – Indicated thermal Efficiency – Efficiency ratio. Energy balance – Compound steam Engines.
UNIT III
Steam Nozzles: General flow analysis. Velocity at exit. Critical pressure ratio and maximum mass flow. Convergent and convergent-divergent nozzles – Isentropic flow – Effect of Friction. Nozzle area at the throat and exit. Problems of steam flow through nozzles.
UNIT IV
Marine Stream Turbine Plants: General principle of Impulse and Reaction Turbines. Compounding of steam turbines - Pressure and Velocity compounding, stage efficiency overall efficiency and re-heat factor. Multi-Stage Turbine with regenerative and reheat cycles. Maximum work output condition. Typical steam plant with turbines, condensers and boilers. Thermal efficiency of steam turbine plant.
UNIT V
Basic Principle of Heat Transfer: Conduction: Fourier law of Conduction. One dimensional Heat Diffusion equation. Convection: Forced and Free Convection. Radiation: Stefan-Boltzmann's equation. Law of Radiation – Problems.
TUTORIAL
TEXT BOOKS
1. P.K. Nag, “Basic & Applied Thermodynamics”, 1st Edition, Tata McGraw–Hill Publishing Co., Ltd., New Delhi, 2002.
2. T.D. Eastop and McConkey, “Applied Thermodynamics for Engineering Technologist SI units”, 2nd Edition, ELBS with DP Publications, London, 1993.
REFERENCES
1. Y.V.C. Rao, “Thermodynamics”, 2nd Edition, Wiley Eastern Ltd., New Delhi, 1993.
2. E. Ratha Krishnan, “Fundamentals of Engineering Thermodynamics”, 1st Edition, Prentice – Hall of India, New Delhi, 2000.
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