GAUHATI UNIVERSITY

SYLLABUS FOR FOURTH YEAR B. E. COURSE (1996 REVISION)

Department of Mechanical Engineering

 

SYLLABUS FOR

EIGHTH SEMESTER(MECHANICAL)

 

 

 

 

Hr/Week

 

 

 

L – T – P

1

ME- 876

Industrial Engineering

3-1-0

100

50

-

2

ME-877

Manufacturing Methods

4-0-3

100

50

-

3

ME-878

Power Plant Technology

4-2-0

100

50

-

4

ME-879

Elective-II

3-2-0

100

75

-

5

ME-880

Elective-III

3-2-0

100

75

-

6

ME-881

Industrial Training

4 weeks during vacation

-

50

25

7

ME-882

Project and Viva Voce

0-0-3

-

150

75

 

 

 

Total

500

500

100

 

ME 876 : INDUSTRIAL ENGINEERING AND MANAGEMENT (3-1-0)

Theory : 100

Sessional : 50

Organization : Definition of organization, organizational structure, formal and informal organization, matrix organization, span of control, delegation of authority and responsibility.

Plant / Facility Location : Objectives, Location factors, plant location trend, system approach to plant location, lay out objectives, types of layout, techniques of lay out design, principles of material handling and integration to lay out, functional charts, line balancing and work station design and its technique.

Product design and Development : Requirements, Product life cycle, product mix, Research development and technology, Development stages, Reliability and maintainability of product. Product simplification and diversification. Product standardization, Product packaging and sales promotion, value analysis of product.

Work Study: Scope, steps of method study, Process charts, Principle of motion economy, work measurement, time study, Standard time, methods of time study, work sampling.

Network Analysis: Objectives, Network development technique, Network computation, use of PERT and CPM, Cost optimization (Crasing).

Production Planning and Control: Objectives, Effects of types of production, forecasting technique, Master production schedule, Loading , dispatching, follow up, Procedure of production planning and control, effective planning and control.

Maintenance Management: Concept, Types of maintenance, Preventive, Break down and condition based plant maintenance, standards of maintenance, Effective maintenance and check list.

Inspection and Quality Control: Objectives, types of inspection, variables and attributes, control charts for variables X-R chart, attributes control charts, - P and C charts quality management, quality system and assurance, ISO 9000 standards.

Inventory Management : Objectives, types of inventory, inventory cost, Economic order quantity, ABC analysis, Maximum, minimum and safety stock, Just in time inventory concept, Model under certainty.

Pollution Management : Ecology , types of industrial pollutions, Factors affecting, obligation and legislation, Waste management and energy recovery.

Case study: Only for sessional – with an objective to help students to develop ability to apply JEM concepts to solve industrial problems. 

Recommended books:

1.      Industrial Organization and Management by BETHEL, AFWATER, SMITH, STACHKMAN.

2.      Industrial Engineering and Management by O P Khanna.

3.      Operation Management by BUFFA ( John Wiley)

4.      Elements of Production Planning and Control by EILON (McMillan)

5.      Production , Planning and inventory control by P J Billington ( PHI, 2nd Edition,1995)

  

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ME 877 : MANUFACTURING METHODS (4 – 0 – 3)

Theory – 100

Sessional – 50

Chapter – 1 : Melting and Casting of alloys/metals. Comparative study of different furnaces for melting. Special casting methods – permanent mould casting, slush casting, pressed casting -- Die casting. Non-metallic mould casting – Centrifugal casting, investment casting, continuous casting. Casting defects, cleaning and inspection.

Chapter – 2 : Mechanical working of metals – hot working and cold working.

Smithing and forging – forgeability, grain flow pattern, Hot forging tools, forging operations, forging hammers and presses, forging processes, forging defects, design considerations.

Rolling – Concept of the process, rolling parameters and their effects, forces acting on metal during rolling. Types of rolling mills – Roll pass design – tube rolling.

Extrusion – Different types, methods and principles, Applications , advantages and limitations.

Drawing – Drawing of rod, wires and tubes.

Metal spinning.

Chapter – 3: Press work: Introduction – types of press and press safety devices. Press working dies. Press working operations -- cutting and shearing, bending, forming , drawing reducing and squeezing operations.

Stock lay-out. Defects in sheet metal formed parts.

Fundamentals of die design, factors affecting die design.

Chapter – 4: High energy rate forming: Introduction – Pneumatic and mechanical forming, explosive forming, electromagnetic and electro-hydraulic forming.

Chapter – 5: Manufacture of threads and gears. Different methods – finishing operations.

Chapter – 6 : Surface finishing processes : Lapping, honing, superfinishing – tools and operation principles – Application – Polishing, Buffing, Tumbling and Burnishing.

Chapter – 7 : Jigs and Fixtures : Introduction, factors affecting design, principles of location , locating devices. Clamp and clamping – Indexing and fool – proofing.

Chapter – 8: powder metallurgy : Introduction, Power metallurgy processes. Primary and Secondary operations. Production of metal powders and characteristics. Typical application of the process. Cemented carbides. Advantages and disadvantages.

Chapter 9 : Coating of metal surfaces : Introduction, Organic, Inorganic, metallic and conversion coatings.

Recommended books:

1.      Manufacturing processes by L. Begeman.

2.      Workshop Technology by B S Raghuwanshi

3.      Workshop Theory by Hajra Choudhury

4.      A text book of production technology, Vol-I by M. Lal and OP Khanna

5.      Fundamentals of tool design by ASTME

6.     Manufacturing Science by Ghosh and Mullick.  

 

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ME 878 : POWER PLANT TECHNOLOGY ( 4-2-0 )

Theory – 100

Sessional – 50

UNIT I : Introduction, power plants, types of power plants, requirements of plant design, Resources and development. Concepts of captive power plant and co-generation.

UNIT II : Power plant lay-out and economics, general design of power plant, unit plant station, cost of energy, selection of types of generator, selection of equipments, performance and operating characteristics, Load division, Tarrif methods.

UNIT III : Steam Power Plants : Site selection, General lay-out of thermal power plants, Steam generation – high pressure boiler, Economizer, Superheater, Reheater, Regenerator, Super-critical cycles, efficiency and heat rate, Air preheater, Fuel handling equipments, coal firing furnace, fluidized bed combustion. Ash handling systems, Cooling tower and ponds. Steam turbines and ponds. Steam turbines – Installations, testing and maintenance, trouble shooting, Optimization of power plant operating efficiency, Emission control.

UNIT IV : Diesel Power Plants: Introduction, plant lay-out, Engine performance, heat balance, Installation and maintenance of Diesel Engines, advantages, trouble shooting, methods of starting.

UNIT V : Gas turbine plants : Site selection, layout, installation maintenance, inspecting governing, fuels, materials, combined cycle, waste heat boiler.

UNIT VI: Hydroelectric Power Plants: Classification, types, governing, installation, operation and maintenance.

UNIT VII: Nuclear Power Plants : Fission and fusion, Thermal fission reactors, types of plants, fast breeding reactors.

UNIT VIII: Measurement and instrumentation : Importance, water purification and gas analysis.

UNIT IX : Environment aspects : Thermal pollution, Greenhouse effect, Acid precipitation, Radioactivity, Noise pollution, methods of reduction of pollution.

UNIT X: Non-Conventional Power Plants: Introduction to non-conventional non-polluting types – geothermal, wind, solar power plants and direct energy conversion systems.

 Books recommended:

1.      Power Plant Technology by Wakil , Tata-McGrow Hills.

2.      Power Plant Engineering by G R Nagpal, Khanna Publishers.

3.      Power Plant Engineering by S. Domkundwar, Dhanpat Rai and Sons.

 

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 ME 879*(1) : Elective – II : COMPRESSORS AND GAS TURBINES (3-2-0)

Theory – 100

Sessional – 75

Classifications of turbo-machines, Application of Euler equation to radial and axial flow turbo-machines.

Centrifugal Compressors: Impeller, Blade shape, Diffuser, Velocity diagram, Inlet guide vane and Prewhirl, slip, work done, Pressure rise, temperature rise, Enthalpy-entropy diagram, Efficiency, characteristics, Surging.

Axial-flow compressors: Stage, stage-blading arrangement, Velocity diagram, blade angles, Thermodynamics of the compressor stage, Enthalpy-entropy diagram, Efficiency, Degree of reaction, stage pressure and temperature rise, work done factor, stage loading, pressure ratio of a multi-stage compressor, surging and stall, characteristics curve.

Axial-flow turbines: Impulse turbines: Single stage and multi-stage turbines, bleeding and velocity diagram, blading efficiency, thermodynamics of the stage, stage enthalpy entropy diagram, efficiency.

Reaction turbine: Stage, bleeding, Stage velocity diagram, thermodynamics of the stage, Enthalpy-entropy diagram, Efficiency, Degree of reaction, Free vortex design, variation of degree of reaction with radius, Flow characteristics of a multi-stage turbine.

Gas Turbines: Combined cycles , Compounding and governing of gas turbines.

Combustion System: Types of combustion chambers, the combustion chamber performance.

Blading materials: Influence of blading material on the maximum temperature of the cycle, Desirable properties of a gas turbine blading material, various blading material and their strength and weaknesses.

Jet Propulsion: Turboprop, Turbofan, Turbojet and Ramjet systems, matching of turbine and compressor.

Recommended books:

1.      Gas turbine theory by H. Cohen, G F C Rogers, HIGH Saravanamutto, Longman Scientific and Technical.

2.      Turbines, Compressors and Fans by S M Yahaya, Tata-McGrow Hills.

3.      Gas Turbines and Propulsive system by P R Khajuria and S P Dubey, Dhanpat Rai and sons.

  

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ME 879*(2) : Elective – II : AIR – CONDITIONING (3-2-0)

Theory –100

Sessional – 50

Psychometric: Psychometric properties, representations of properties in charts, preparation of charts.

Psychometric processes: Constant sensible heat and latent heat processes, adiabatic saturation and enthalpy deviation. Adiabatic mixing of air stream. Humidification, Dehumidification water spray processes, sensible heat factors, grand sensible heat ratio lines, apparatus dew points, Bypass factors, Air washer-humidifying efficiency.

Comfort A/C: Air temperature, human health, body temperature regulation, comfort indices, comfort charts and their limitations.

Load analysis: Inside and outside design conditions, load classification, summer cooling loads, solar heat gain and transmission and radiation. Flywheel effect of building materials, equipment temperature differential loads due to human beings, load due to electric light, equipments and appliances. Infiltrator and ventilator loads, product loads, miscellaneous loads such as duct heat gain, duct air leakage, fans, pumps etc. Winter heat load – computation of loads.

Duct design and Air distribution: Different methods of duct design such as velocity reflection, equal friction and static regain, aspect ratio duct losses, distribution of air in rooms, nature and supply grill.

A/C System: Unitary control system, special features of residential, commercial and industrial A/C system, Uear roun a/c zoning.

Equipments: (1) Fans – types of fans, characteristics, curves, fan selection. (2) Air filter and cleaner. (3) Cooling towers, evaporators, condensers (4) Cooling coils and water capacity, (5) Chemical dehumidifiers, (6) Heaters, radiators, Convection coils.

Instruments and controls: Temperature, humidity, air velocoty measuring instruments, Thermostat, humidiostat. By pass and damper control. Dew point control, noise control, Pneumatic control.

  

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ME 879* (3) Elective-II : TOOL DESIGN – I (3-2-0)

Theory - 100

Sessional – 75

Design of cutting tools: Single point tools, basic principles of multi-point tools, linear travel tools, axial feed rotary tools, control of the causes of tool wear and failure.

Work-holding devices: Principles of work holders, multification of holding forces, Elementary workholder like vice, vice with hydraulic clamping, chucking round work piece.

Purpose and function of workholders. Methods of location. Twelve degrees of freedom, 3pin methods, five degrees of freedom, five pins arrest eight degrees of freedom, six pins arrest nine degrees of freedom etc. pins, practical holding. V – locators for cylindrical work-pieces.Nesting or cavity locating, Understanding of tools forces and designing of pin-type drill fixture resisting torque and thrust, workholder to resist torque and thrust in tapping operation, workholder for broading operation, cutting resistance by solid jaw of vice.

Clamping forces and commercially available fixture component and components to hold large work-pieces.

Elements and types of fixture design: Workholding principles for Elements and types of fixture design – workholding principles for flat or irregular surfaces and round surfaces. Means of actuation, Rigid Vs elastic workholding. Accuracy of work location. Workholders for flat or irregular workpieces, workholders for round workpieces.

General consideration in workholders design and selection, Evolution of workholders, evolution of drill jigs and fixtures, milling fixtures.

Step-by-step approach for the design of all jigs and fixtures.

 Recommended books:

1.      Fundamentals of tool design by Frank Wilson, ASTME.

 

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ME 880 * (1): Elective – III: INTERNAL COMBUSTION ENGINES (3 – 2 – 0 )

  Fuel Air cycle – effect of variation of specific heats, fuel-air ratio, compression ratio and dissociation. Actual cycle – losses in actual cycle.

Exhaust gas analysis – its interpretation and use in determination of combustion characteristics.

I C engines fuels - - Petrol, Diesel, natural gases and some other alternative fuels and their characteristics and use in engines. Combustion process in S. I. And C. I. engines, abnormal combustion , detonation and fuel knock – additives. Rating of I. C. engine fuel.

Design features of combustion chambers used in S I and C I engines, some important types of combustion chambers.

Carburetion – desirable characteristics – compensation for simple jet carburetor, calculation for air-fuel ratio.

Injection processes – requirements and methods – jerk pump, common rail system and unit injection system.

Ignition processes in petrol engines – requirements and types – battery magneto and electronic.

Performance characteristics of petrol and Diesel engines. Part load and full load characteristics in respect to thermal efficiency, mechanical efficiency, fuel consumption, bmep and torque. I C engine ratings and volume capacity compression ratio and weight to power output ratio and its trends in power – weight characteristics. Supercharging of I C engines – effect of supercharging on Diesel and petrol engines – performance characteristics for supercharged engines.

Supercharger – types, principles of duel-fuel and multi-fuel engines and Stratified combustion engines. 

Recommended books:

1. A course in Internal Combustion engines – by M L Mathur and R P Sarma