ME 205

ME 205INTRODUCTION TO INSTRUMENTATION LTPC

Fourth Semester3006

(Mechanical Engineering Branch)

Generalized measurement system, Measurement terminology Calibration, Accuracy, Precision, Sensitivity, Threshold, Hysteresis, Dead space, errors in measurements, Dynamic characteristic of simplified measuring system, Characteristic of first order and second order systems.

Transducer elements Analog transducers, Digital transducers, Intermediate elements Amplifier, Compensator, Differentiating and Integrating elements, Filters, Data transmission elements.

Indicating and recording elements Digital voltmeters, Cathode Ray Oscilloscope (CRO`S ), Galvanometric recorders, Data acquisition systems.

Strain measurement types of electrical resistance strain gauges, Theory of operation, Gauge material, Gauge factor, Mounting techniques, Moisture proofing, Calibration circuits, Strain measurement in static and rotating shafts, Proper orientation of gauges, Commercial strain measuring system.

Measurement of Force, Torque and Pressure.

Force Hydraulic and pneumatic load cells, elastic force devices.

Pressure moderate pressure measurement, high pressure measurement, low pressure (Vacuum) measurement, elastic pressure measurement devices.

Torque Transmission dynamometer, Absorption dynamometer.

Temperature Temperature measurement using change in physical properties, electrical type temperature sensors, radiation thermometry.

Flow measurement Head type area flow meter, solid flow meter, electrical type (Hot wire Anemometer) and accelerometers.

Miscellaneous Instruments in Industrial and Environmental application- Environmental air pollution measurement, gas chromatography.

Reference books:1. Mechanical Measurement By Buck and Beckwith, Addison- Wisley Publication Co, P. Ltd

2. Measurement Systems By Doeblin, McGraw Hill Publishers

3. Instrument Measurement And Analysis By B.C. Nakra, K.K. Chowdhry, Tata McGraw Hill Publishers

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ME 206THERMODYNAMICS-II LTPC

Fourth Semester3108

(Mechanical Engineering Branch)

Thermodynamic property relations:

Maxwell relation, Clapeyron equation, general relations for du, dh, ds, Cv and Cp, Joule-Thomson coefficient, (h, (u and (s of real gases.

Gas Power Cycle:

Basic considerations in the analysis of power cycles, air-standard assumptions, an overview of reciprocating engines, its classification, engine components, working principle of 2-stroke and 4-stroke engines, valve timing diagrams, engine performance parameters, Otto, Diesel and dual cycles, Stirling and Ericsson cycles, simple Brayton cycle, Brayton cycle with regeneration, reheating and intercooling

Vapour power cycle:

Carnot cycle, Rankine cycle, actual vapour power cycle processes, reheat cycle, regenerative cycle, feed water heaters (open and closed), characteristics of an ideal working fluid in vapour power cycle, binary vapour cycles, thermodynamics of combined cycles.

Reciprocating air compressor:

Single stage and multistage air compressors, work done per cycle, compressor capacity and power computation, volumetric efficiency and isothermal efficiency, effect of clearance ratio on volumetric efficiency, intercooler and after cooler.

Combustion processes:

Fuels and combustion, theoretical and actual combustion processes, enthalpy of formation and enthalpy of combustion, first law analysis of reacting systems (combustion processes), steady flow system and closed system, adiabatic flame temperature, entropy change of reacting systems, second law analysis of reacting systems.

Reference books:

1.Engineering Thermodynamics P K Nag Tata McGraw Hill

2. Engineering Thermodynamics Rogers and Mayhew Pearson education

3. A Text Book on Classical ThermodynamicsM J Moran John Wiley &sons.****************************

ME 210MECHANICS OF FLUIDS-ILTPC

Fourth Semester3108

(Mechanical Engineering Branch)

Introduction:

Introductory concepts and definitions: fluids and solids, continuum. Fluid mechanics, system, control volume, stress at a point and rate of strain. Properties and classification of fluids.

Fluid Statics:

Pascalss law, hydrostatic law, measurement of pressure, forces on submerged plane and curved surfaces, buoyancy, metacenter.

Kinematics of Fluids:

Introduction, scalar and vector fields, flow field and description of fluid motions, existence of flow.

Conservation Equations:

System, conservation of mass, conservation of momentum and conservation of energy.

Applications of Equations of Motion and Mechanical Energy:

Introduction, Bernoullis equation in irrotational flow, measurement of flow rate through pipe, flow through orifices and mouthpieces.

Principles of Physical Similarity and Dimensional Analysis:

Introduction, concept and type of physical similarity, applications of dynamic similarity, dimensional analysis.

Laminar and Turbulent Flows:

Introductions, definitions of laminar and turbulent flows, laminar flow through a circular pipe, laminar flow between parallel plates, laminar flow through an annulus, hydrodynamic lubrication.

References:

1. Introduction to Fluid Mechanics and Fluid Machines: S.K. Som and G. Biswas -

Tata McGraw Hill.

2. Engineering Fluid Mechanics: K.L. Kumar, Eurasia Publishing House (P) Ltd

3. Fluid Mechanics: A.K. Jain, Khanna Publishers

4. Fluid Mechanics: Streeter and Willy, McGraw Hill

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ME 211MECHANICS OF SOLIDS - IL TPC

Fourth Semester3108

(Mechanical Engg)

Properties of materials definition

Simple stresses and Strains

Uni-axial Stress and, strain, type of stresses, stress-strain curve, elastic limit, Hookes law, factor of safety, elastic constants, bars of varying sections, bars of composite sections, elongation due to self weight, bars of uniform strength,.

Transformation of stresses,

Stresses on inclined plane, Mohrs circle, stresses on inclined plane due to normal and shear stresses, principal plane, principal stresses and strains.

Bending moments and Shear forces

Types of beams, type of loads, type of supports, SF and BM , sign convention, SF and BM diagrams for cantilever, simple supported and overhanging beams, Relationship between rate of loading, SF and BM.

Theory of bending, assumptions, neutral axis and moment of resistance, bending stresses in symmetrical sections, section modulus, composite beams.

Shear stresses in beams.

Torsional stresses in shafts

Analysis of torsional stresses, power transmitted,

Combined bending and direct Stresses, resultant stresses for column of rectangular section subjected to eccentric load, limit of eccentricity for no tension.

Thin Shells

Thin cylinders and spherical shells, stresses, strains and volumetric changes.

Deflection of beams

Re;lationship among curvature, slope and deflections, slope and deflection for cantilever and s.s. beams, Machaulays method.

Reference Books:1Strength of MaterialsG.H.RyderELBS & Macmilan

2Mechanics of MaterialsPytel & SingerHarper Collins Publishers India Pvt. Ltd., New Delhi

3Strength of Materials U.C. Jindal Umesh Publication, New Delhi.

5Mechanics of MaterialsBeer & JohnstonTata McGraw-Hill, New Delhi

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ME 207 MATERIAL SCIENCE L T P C

Fourth semester

3 1 0 8(Mechanical Engineering Department)

Chapter 1: Crystal Structure

Unit cells, The face centered cubic crystal structure, The body centered cubic crystal structure, The hexagonal close packed structure, Crystallographic directions and planes, Determination of crystal structures, Crystal defects.

Chapter 2: Mechanical Properties of Metals

Concepts of stress and strain, Tension tests, Compression and Shear tests, Elastic deformation- Stress-Strain behavior, Plastic deformation, Tensile properties, Yielding and yield strength, Ductility, Toughness, True stress and strain, Elastic recovery during plastic deformation, Creep , Fatigue, Proof stress.

Chapter 3: Stability of Phases and Equilibrium

Liquid solid transition, Phase equilibrium diagrams, Cooling curves, The liver rule, Iron-Iron carbide equilibrium diagram.

Chapter 4: Crystallization

Nucleation, Homogeneous nucleation, Heterogeneous nucleation, Crystal growth.

Chapter 5: The heat treatment of steel Full annealing, Spheroidizing, Normalizing, The isothermal transformation diagram, Continuous cooling transformation diagram, Tampering, Hardenability, application of heat treatment for gear, thread etc.

Chapter 6: Cast Iron

Classification of CI, production of various types of cast iron and their applications.

Reference books:

1. Engineering Physical Metallurgy By Y.Lakhtia, Mir Publishers,

Moscow

2. Physical Metallurgy Principle By A.G.Guy, McGraw Hill

Publications

3. Introduction to Physical Metallurgy By Sidney H. Avner, Tata McGraw

Hill Publishers. ***********************

ME 208M.E. Lab-IL TPC

Fourth Semester0022

(Mechanical Engg)

(List of experiments)

1. Calibration of pressure gauge

2. Valve timing diagram of a horizontal diesel engine

3. Determination of air-fuel ratio for a S.I. engine

4. Determination of height of a given specimen by Vernier height gauge

5. Determination of length of a given specimen by Vernier depth gauge

6. Study of boiler mountings and accessories

7. Determination of viscosity of a given fluid by redwood viscometer

8. Determination of velocity of air by Pietometer

9. Calibration of thermocouple

Reference books:

1. I.C. Engine by V. Ganeshan

2. Thermodynamics by P.K.Nag

3. Workshop Technology by Chapmann

4. Instrumentation by Dublin

5. Fluid Mechanics by Som and Biswas

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ME 209Fluid Mechanics LaboratoryL TPC

Fourth Semester0022

(Mechanical Engg)

(List of experiments)

1. Determination of meta-centric height

2. Impact of jet

3. Orifice meter

4. V-notch

5. Bernoullis Theorem

6. Venturimeter

7. Coefficient of Orifices

8. Losses in Pipe Flow

9. Preliminary experiments on airflow bench

10. Preliminary experiments on Kaplan turbine

Reference books:

1. Fluid Mechanics by Som and Biswas

2. Fluid Mechanics by K.L. Kumar

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