ME - 101-ELEMENTS OF MECHANICAL ENGINEERING |
PART – A |
1. BASIC CONCEPT OF THERMODYNAMICS : Thermodynamic system, boundary
and surroundings, Open, Closed and isolated systems, State, property, process and
cycle, Reversible, Quasi-static and irreversible processes and conditions for
reversibility. Energy and its forms : energy transfer across system boundaries, heat
and work, property and energy as point and path functions. Ideal gas and
characteristic gas equation. Zeroth law of thermodynamics, concept of thermal
equilibrium and principle of thermometry.
2. FIRST LAW OF THERMODYNAMICS : Essence and corollaries of the first law,
analytical expressions applicable to a process ad cycle : internal energy, enthalpy and
specific heats : first law analysis of steady flow, applications of steady flow energy
equation to various engineering devices.
3. APPLICATIONS OF FIRST LAW OF THERMODYANICS : Closed and open
systems, analysis of non-flow and flow processes for an ideal gas under constant
volume ( Isochoric), constant pressure ( Iso baric), constant temperature (Isothermal),
adiabatic and polytropic conditions. Analysis of free expansion and throttling
processes. Representation of these processes o P-V chars and analysis of property
changes and energy exchange ( work and heat) during these processes.
4. SECOND LAW OF THERMODYNAMICS : Limitations of first law, various
statements of second law and their equivalence, applications of statements of second
law to heat engine, heat pump and refrigerator. Philosophy of Carnot cycle and its
consequences. Carnot theorem for Heat engines and heat pump. Claussius inequality,
concept and ;philosophy of entropy and entropy changes during various processes.
Temperature entropy chart and representation opf various processes on it. Third law
of Thermodynamics.
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PART-B |
5. GAS POWER CYLES : Concept and philosophy of Air Standard Cycle and Air
standard Efficiency. Some basic definitions of Piston-Cylinder arrangement. Otto
cycle, Diesel cycle, Dual cycle and Brayton cycle their representation on P-V and T-S
Charts. Comparison of Otto cycle. Diesel cycle, Dual cycles, Mean Effective
Pressure. Introduction to constructional features and working of two stroke and four
stroke petrol and diesel engines and their comparison.
6. MECHANISM AND SIMPLE MACHINES : Philosophy of introducing
Mechanisms and their concept , Definition of element, link, kinematic chain,
mechanism, machine, Examples of mechanisms and their applications (Beam Engine,
Slider Crank, Oldham Coupling, Elliptical Trammel, Socth-yoke.Pantograph),
Concept of Basic machines, Reversibility of lifting Machine, Law of Lifting
Machine, Different systems of pulleys, Differential Pulley block, Simple and
Differential Wheel and Axle arrangement, Worm and Worm Wheel.
7. MECHANICS OF SOLIDS : Concept of mechanical behavior of Engineering
materials; Tension, Compression, Torsion, Bending, Hardness, Fatigue, Creep,
Impact, Concept and philosophy of stress and strain, Normal, Shear and Temperature
stresses congitudinal and lateral strain, Poisson’s ration, Concept of stress strain curve
, yield point, elastic limit, ductility, elongation, true stress and true strain, stain energy
and resilience , Sudden and impact load, Stresses in composite bar due to application
of load and temperature, Elastic constants and their significance , relations between
Elastic constants; Young modulus of Elasticity, Poisson’s ratio, Modulus of
rigidity,and Bulk modulus.
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TEXT BOOKS |
1. Nag P.K. Engineering Thermodynamics , Mc. Graw Hill.
2. Yadav R., Thermodynamics and Heat Engines, Central Publishing House,
Allahabad
3. Singh V.P., Theory of Machines, Dhanpat Rai and Company , New Delhi.
4. Jindal U.C., Engineering Mechanics , Part-I, Galgotia Publications Pvt.Ltd. , New
Delhi.
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REFERENCE BOOKS |
1. Moran M.J and Shapiro H.N., Fundamentals of Engineering Thermodynamics, John
Wiley, New York.
2. Van Wylen G.J., Fundamental of Classic Thermodynamics John Wiley New York.
3. Spalding D.B. and Cole E.H., Engineering Thermodynamics, ELBS , New Delhi.
4. Hibbeler R.C., Engineering Mechanics-Statics, Addison Wesley Longman, New
Delhi.
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