Diploma (Mechanical Engineering) Syllabus

Semester VI

  • COURSE CODE
    COURSE NAME
    CREDITS
  • JDME-601

    Dynamics of Machines:

    UNIT-I

    Dynamics of Machines: Static and dynamic force analysis, Graphical and analytical approaches, Engine mechanisms, Turning moment diagram, Flywheel analysis, Gyroscopic action in machines.

    UNIT-II

    Governors: Types and classification, Principle of working of gravity controlled and spring controlled governors, Stability, Isochronisms, Sensitivity and capacity.

    UNIT-III

    Unbalance in Machines: Origin of unbalanced forces and moments and effects of unbalance, Unbalance in rotating bodies and balancing of discs and rotors, Balancing machines, Field balancing of discs and rotors, Unbalance in reciprocating machines -engine, Compressor, Presses.

    UNIT-IV

    Engines and Balancing: Unbalance force and moment in a single cylinder engine and balancing, Multi cylinder engine balancing in Line engine, V and Radial engines, Lanchestor balancing techniques

    UNIT-V

    Vibrations: Vibration of single degree of freedom, Systems, Free forced, Damped and undamped vibration, Frequency response and resonance, Bare excitation-Transmissibility and Isolation, Free vibration 2 DOF system - Concept of normal mode, vibration absorber, Multidegree of freedom systems, Free vibration of bars, Shafts and beams, Energy methods and approximate methods.

    Books:

    • 1. Theory of Machines by : R.S. Khurmi
    • 2. Theory of Machines by : S.S. Ratan
    04
  • JDME-602

    Refrigeration & Air Conditioning:

    UNIT-I

    Refrigeration: Introduction to refrigeration system. Methods of refrigeration, Carnot refrigeration cycle, Unit of refrigeration effect and C.O.P. Air Refrigeration Cycle: Open and Closed air refrigeration cycles, Reversed Carnot cycle, Bell Coleman or Reversed Joule air refrigeration cycle, Aircraft refrigeration system. Classification of aircraft refrigeration system. Simple air refrigeration system. Boot strap refrigeration, Regenerative, reduced ambient, Dry air rated Temperature (DART).

    UNIT-II

    Vapour Compression System: Single stage system, analysis of vapour compression cycle, use of T-S and P-H chart, Effect of change in suction and discharge pressures on C.O.P. , Effect of sub cooling of condensate and superheating of refrigerant vapour on C.O.P. of the cycle, Actual vapour compression refrigeration cycle, Multivapour compression system requirement, removal of flash gas, intercooling, Different configuration of multistage, Cascade system.

    UNIT-III

    Vapour Absorption System: Working Principle of vapour absorption refrigeration, Comparison between absorption and Compression system, Elementary idea of refrigeration absorbent mixtures, Temperature- concentration diagram and Enthalpy-concentration diagram, Adiabatic mixing of two streams, Ammonia-water vapour absorption system, lithium –Bromide water vapour absorption system, Comparison. Refrigerants: Classification, Nomenclature, Desirable properties of refrigerants, Common refrigerants, Secondary refrigerant and CFC free refrigerants

    UNIT-IV

    Air Conditioning: Introduction to air conditioning, Psychometric properties and their definitions, Psychometric chart, Different Psychometric processes, thermal analysis of human body Effective temperature and comfort chart , cooling and heating load calculation , Selection of inside and outside design conditions, Heat transfer through Walls & Roofs, Infiltration and ventilation, Internal heat gain , sensible heat factor(SHF),By-pass factor, Grand Sensible heat factor (GSHF),Apparatus dew point(ADP).

    UNIT-V

    Refrigeration Equipment and Application: Elementary knowledge of refrigeration and air conditioning equipments e.g. Compressor, Condeners, evaporators and expansion devices, Air washers, cooling towers and humidifying efficiency, Food preservation, cold storage, Refrigerates Freezers, Ice plant, Water coolers, Elementary knowledge of transmission and distribution of air through ducts and fans, Basic difference between comfort and industrial air conditioning.

    Books:

    • 1. Refrigeration and Air conditioning: C.P. Aurora, TMH.
    • 2. Refrigeration and Air conditioning: Manohar Prasad, New Age.
    • 3. Refrigeration and Air conditioning: R.S. Khurmi.
    • 4. Refrigeration and Air conditioning: P.L. Baloney.
    04
  • JDME-603

    Metrology & Measuring Instrument:

    UNIT-I

    Introduction, Principles And Classifications Of Measuring Instruments: Meaning and scope of metrology in field of engineering. Standards and types of mesaurements (Line and Wave length, Primary, Secondary and Tertiary measurement concept only). Limits, Fits and Tolerances. Interchangeability, precision and accuracy, Sources of error.

    • A. Principle of Mechanical Measuring Instruments: Lever method, vernier method, screw and screw nut method, compound gearing and helical spring methods
    • B. Principles of Optical Instruments: Reflection, Refraction, Interference, Polarisation, Optical prisms, Lenses and Optical projection (Magnification)
    • C. Principle of Electrical measuring instruments
    • D. Principle of Hydraulic and Pneumatic Instruments.

    UNIT-II

    Transducers And Comparators: Definition, various types of transducers such as resistive, capacitive, inductive, electromagnetic, photo electric, piezo electric and their use in instrumentation. General principles of constructions, balancing and graduation of measuring instruments, characteristics of comparators, use of comparators, difference between comparators, limit gauges and measuring instruments. Classification of comparators, construction and working of dial indicator, johanssen "Mikrokator", read type mechanical comparator, mechanical-optical, zeiss optotest, electro limit, electromechanical, electronics, pneumatic comparators, gauges, tool makers microscope.

    UNIT-III

    Surface Finish: Geometrical characteristics of surface roughness- Wavyness. Lay, flaws. Effect of surface quality on its functional properties. Factor affecting the surface finish. Drafting symbols for surface roughness. Evaluation of surface finish. RMS and CLA values. Methods of measuring surface roughness. Qualitative and quantitative methods. Comparison of surfaces produced by common production methods.

    Various Types of Instruments used for:

    • a) Physical Measurements such as - Length, Depth height, Thickness, Gaps, Curvature, Angle, Taper, Area, Undulations, Surface finish, Thread and Gear measurement.
    • b) Liquid Level & Viscosity - Liquid level measuring methods and devices Viscometer - Plate and Cone viscometer, Two float viscometer, Rheo viscometer.
    • 2. Mechanical Quantities:
      • a) Displacement, velocity, acceleration, speed, torque-Use of transducers and electronic counters, stroboscope, vibrating reeds and techno meters.
      • b) Pressure and Vacuum - Idea of atmospheric pressure, Gauge pressure and vacuum - Use of instruments such as manometers and pressure gauge using elastic elements such as diaphragm, Capsule, Bellows, Bourdon tube and various transducers and thermo couple, vacuum gauges.
      • c) Strain Gauge - Use of strain gauge and load cells.

    UNIT-IV

    Temperature Measurement And Special Measuring Devices: Various types of thermometers, thermocouples, pyrometers (Radiation and optical type both), Computerized 3-D measuring machine (Working Only).

    UNIT-V

    Measurement Of Vibrations And Inspection Of Geometrical Errors: Use of siesmic Accelerometer, Potentio metric type and L. V. D. T. type, Piezoelectric type accelerometer. Construction and working of auto collimeter, checking of straightness, flatness, squareness and parallelism, circularity (By dial gauge and telerod).

    Books:

    • 1. Metrology: R.K. Jain
    04
  • JDME-604

    Industrial Engg. & Safety:

    UNIT-I

    Inspection and Work Study: Inspection, Need and its planning, objective. Types of inspection. Inspection standards. Duties of inspector in inspection. Inspection needs. Method Study-Process chart, Flow process chart, Flow diagram, Man and Machine chart, Gang process Chart. Work Measurement-Time study, Tools used in time study, Performance rating, Allowance and use of time standard, Time and Motion study. Principle of human motion economy, Micro motion study, Memo motion study, Therbligs, left hand and right hand chart.

    UNIT-II

    Production, Planning and Control, Material Handling and Material Handling Equipment: Methods of production-Unit, Batch, mass. Sales forecasting and its use. Planning-Products, process parts, materials, Optimum Batch quantity for production and Inventory, Theory and Analysis of M/C capacity, Batch quantity, Loading and balancing-Scheduling M/C loading. Preplanning activities, Routing, Dispatching, Follow up activities Factors in material handling problems, Cost reduction through improved material handling, Reduction in time of material handling, Material handling equipments –Lifting lowering devices, Transporting devices, Combination devices, Maintenance of material handling equipments.

    UNIT-III

    Plant Layout, Standard and Code: General plant location factors, Influence of location on plant layout, selection of plant site, Product layout, Process layout. Advantages and disadvantage of process Layout. National and International code, value of standardisation. Standardisation programme, Role of Standardisationdepartment, standardisation techniques and problems.ISO-9000 - Concept and its evolution and implications.

    UNIT-IV

    Quality Control and Cost Estimation: Concept of quality control, Quality assurance elements of quality control, Statistical quality control, Acceptance sampling, control chart for variable and attributes, Uses of X, R, "P" and "C" chart - O.C. curve, Concept of Total Quality Management Introduction and function of cost estimation, estimation procedure, elements of cost, depreciation - methods of calculating depreciation, overhead expenses, distribution of over head expenses, calculation of cost for machining and metal forming process and break even analyzer

    UNIT-V

    Value Engineering, Accidents and Safety: Concept of value engineering and technique Classification of accidents, causes of accidents, Effects of accidents, Action to be taken in case different types of accidents, Safety - needs, consciousness, procedures, measures. General safety devices used on machines, Safe working condition and productivity.

    Books:

    • 1. Industrial Engineering: M.I. Khan.
    • 2. Industrial Engineering: J.C. Varshney , Deepak Prakashan.
    04
  • JDEV-601

    Environmental Education & Disaster Management:

    UNIT-I

    Introduction: Basics of ecology, Ecosystem, Biodiversity Human activities and its effect on ecology and eco system, different development i.e. irrigation, urbanization, road development and other engineering activities and their effects on ecology and eco system, Mining and deforestation and their effects.

    • i) Lowering of water level, Urbanization.
    • ii) Biodegradation and Biodegradibility, composting, bio remediation, Microbes. Use of biopesticidies and biofungicides.
    • iii) Global warning concerns, Ozone layer depletion, Green house effect, Acid rain, etc Sources of pollution, natural and manmade, their effects on living environments and related legislation.

    UNIT-II

    Water Pollution & Noise Pollution:

    • i) Factors contributing water pollution and their effect.
    • ii) Domestic waste water and industrial waste water. Heavy metals, microbes and leaching metal.
    • iii) Physical, Chemical and Biological Characteristics of waste water.
    • iv) Indian Standards for quality of drinking water.
    • v) Indian Standards for quality of treated waste water.
    • vi) Treatment methods of effluent (domestic waste water and industrial/mining waste water), its reuse/safe disposal Sources of noise pollution, its effect and control.

    UNIT-III

    Air Pollution and Radioactive Pollution: Definition of Air pollution, types of air pollutants i.e. SPM, NOX, SOX, GO, CO2, NH3, F, CL, causes and its effects on the environment.

    • i) Monitoring and control of air pollutants, Control measures techniques. Introductory Idea of control equipment in industries i.e.
      • a. Settling chambers
      • b. Cyclones
      • c. Scrubbers (Dry and Wet)
      • d. Multi Clones
      • e. Electro Static Precipitations
      • f. Bog Fillers.
    • ii) Ambient air quality measurement and their standards.
    • iii) Process and domestic emission control
    • iv) Vehicular Pollution and Its control with special emphasis of Euro-I, Euro-II, Euro-III and Euro IV. Sources and its effect on human, animal, plant and material, means to control and preventive measures.

    UNIT-IV

    Solid Waste Management and Legislations: Municipal solid waste, Biomedical waste, Industrial and Hazardous waste, Plastic waste and its management. Preliminary knowledge of the following Acts and rules made there under-

    • i) The Water (Prevention and Control of Pollution) Act - 1974.
    • ii) The Air (Prevention and Control of Pollution) Act - 1981.
    • iii) The Environmental Protection (Prevention and Control of Pollution) Act -1986. Rules notified under EP Act - 1986

    Viz.

    • • The Manufacture, Storage and Import of Hazardous Chemical (Amendment) Rules, 2000.
    • • The Hazardous Wastes (Management and Handling) Amendment Rules, 2003.
    • • Bio-Medical Waste (Management and Handling) (Amendment) Rules, 2003.
    • • The Noise Pollution (Regulation and Control) (Amendment) Rules, 2002.
    • • Municipal Solid Wastes (Management and Handling) Rules, 2000.
    • • The Recycled Plastics Manufacture and Usage (Amendment) rules, 2003.

    UNIT-V

    Environmental Impact Assessment (EIA) and Disaster Management: Basic concepts, objective and methodology of EIA. Objectives and requirement of Environmental Management System (ISO-14000) (An Introduction). Definition of Disaster: Natural and Manmade, Type of disaster management, How disaster forms, Destructive power, Causes and Hazards, Case study of Tsunami Disaster, National policy- Its objective and main features, National Environment Policy, Need for central intervention, State Disaster Authority- Duties and powers, Case studies of various Disaster in the country, Meaning and benefit of vulnerability reduction, Factor promoting vulnerability reduction and mitigation, Emergency support function plan. Main feature and function of National Disaster Management Frame Work, Disaster mitigation and prevention, Legal Policy Frame Work, Early warning system, Human Resource Development and Function, Information dissemination and communication.

    04
  • JDME-652

    Refrigeration & Air Conditioning Lab:

    • 1. Experiment on the refrigeration test-rig and calculation of various performance parameters.
    • 2. To study different types of expansion devices used in a refrigeration system.
    • 3. To study different types of evaporators used in a refrigeration system.
    • 4. To study basic components of an air conditioning system.
    • 5. Experiment on air conditioning test-rig and calculation of various performance parameters.
    • 6. To study air washers.
    • 7. Study and determination of volumetric efficiency of a compressor.
    • 8. Visit of a central air conditioning plant.
    • 9. Visit of a cold storage plant.
    • 10. Study of a window air conditioner.
    02
  • JDME-656

    Project
    08
  • JGP-651

    General Proficiency
    02
  • Total Credits
     
    32