Elements of Mechanical Engineering


This course is offered to first year students of all degree engineering branches by Gujarat technological University.
Teaching Scheme
Evaluation Scheme
Theory
Tutorial
Practical
Total
Credits
Final Exam
(External)
[E]
Midterm Exam
(Internal)
[M]
Practical Exam
(External)
[I]
4
0
2
6
70
30
50

Syllabus


1.

Introduction

external image Carnot_engine_%28hot_body_-_working_body_-_cold_body%29.jpg
Prime movers, Sources of energy, Types of prime movers, Force and mass, Pressure, Work, Power, Energy, Heat,
Temperature, Units of heat, Specific heat capacity, Interchange of heat, Change of state, Mechanical equivalent of heat,
Internal energy, Enthalpy,Entropy,Efficiency, Statements of Zeroth Law, First law and Second Law of Thermodynamics.

- Lecture Notes
- Lecture Videos
- Tutorials
- Test
- Grades

2.

Fuels and Combustion

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Introduction, Classification, Solid fuels, Liquid Fuels, Gaseous fuels, LPG,CNG and biofuels ,Calorific values.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

3.

Properties of gases

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Gas laws, Boyle's law, Charle's law, Combined gas law, Gas constant, Internal energy, Relation between Cp and Cv,
Enthalpy, Non flow process, Constant volume process, Constant pressure process, Isothermal process,
Poly-tropic process, Adiabatic process.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

4.

Properties of Steam

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Introduction, Steam formation, Types of Steam, Enthalpy, Specific volume of steam and dryness fraction of steam ,
Internal energy, Steam tables, Non-flow process. Measurement of ryness fraction, Throttling calorimeter,
Separating calorimeter, Combined calorimeter.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

5.

Heat Engines

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Thermal prime movers, Elementary heat engines, Sources of heat, Working substances, Converting machines, Classification of heat engines,
Heat engine cycles, Carnot cycle, , Rankine cycle, Ottocycle, Diesel cycle.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

6.

Steam Boilers

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Introduction, Classification, Simple vertical boiler, Vertical multitubular boiler, Cochran type, Lancashire boiler, Locomotive boiler,
Babcock and Wilcox boiler, High pressure boilers, Boiler details, Boiler performance. Functioning of different mountings and accessories.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

7.

Internal Combustion Engines

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Introduction, Classification, Engine details, otto four-stroke cycle, Diesel-four-stroke cycle, Difference between otto cycle and Diesel cycle,
Two-stroke cycle, Difference between two-stroke and four-stroke cycle, indicated power (ip), Brake Power (bp),Efficiencies.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

8.

Speed Control

external image governor.jpg
Introduction, Governors, I.C. Engine governing, Fly wheel.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

9.

Pumps

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Introduction, Reciprocating pump, types and operation, Bucket pump, Air Chamber, Centrifugal pumps,
Types and Priming, Rotary pumps.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

10.

Air Compressors

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Introduction, Uses of Compressed air, Reciprocating compressors, Operation of a compressor, Work for Compression, Power required,
Reciprocating compressor efficiency, Multistage reciprocating compressors, Rotary compressors.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

11.

Refrigeration & Air Conditioning

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Introduction, Refrigerant, Types of refrigerators, Vapour compression refrigerating system, Window and split air conditioners.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

12.

Couplings, Clutches and Brakes

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Introduction, Couplings, Clutches, Brakes, Types of brakes. Difference between a brake and a clutch.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

13.

Transmission of Motion and Power

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Introduction, Methods of drive, Power transmission elements, shaft and axle, Belt-drive, Pulleys, Power transmitted by a belt,
Chain drive, Friction drive, Gear drive

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades

14.

Important Engineering Materials

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Properties of materials, Ferrous & Nonferrous materials and other important engineering materials such as Timber, abrasive material,
Silica, ceramics, glass, graphite, diamond, plastic, polymer and composite material.

- Lecture Notes- Lecture Videos- Tutorials- Test- Grades