2110006 - Gujarat Technological University

GUJARAT TECHNOLOGICAL UNIVERSITY
ELEMENTS OF MECHANICAL ENGINEERING (Modified on 4th Feb 2014)
SUBJECT CODE: 2110006
B.E. 1st YEAR
Type of course: Engineering Science
Prerequisite: Zeal to learn the subject
Rationale: Understanding of basic principles of Mechanical Engineering is required in various field
of engineering.
Teaching and Examination Scheme:
Teaching Scheme
Credits
Examination Marks
L
T
P
C
Theory Marks
Practical Marks
ESE
PA
ESE
PA
(E)
(M)
Viva (V)
(I)
4
0
2
6
70
30*
30#
20**
Total
Marks
150
L- Lectures; T- Tutorial/Teacher Guided Student Activity; P- Practical; C- Credit; ESE- End Semester Examination;
PA- Progressive Assessment
Content:
Sr #
1
2
3
4
5
6
7
Topic
Introduction:Prime movers and its types, Concept of Force,
Pressure, Energy, Work, Power, System, Heat, Temperature,
Specific heat capacity, Change of state, Path, Process, Cycle,
Internal energy, Enthalpy, Statements of Zeroth Law and First
law
Energy: Introduction and applications of Energy sources like
Fossil fuels, Nuclear fuels, Hydel, Solar, wind, and bio-fuels,
Environmental issues like Global warming and Ozone depletion
Properties of gases:Gas laws, Boyle's law, Charle's law,
Combined gas law, Gas constant, Relation between Cp and Cv,
Various non-flow processes like constant volume process,
constant pressure process, Isothermal process, Adiabatic process,
Poly-tropic process
Properties of Steam:Steam formation, Types of Steam,
Enthalpy, Specific volume, Internal energy and dryness fraction
of steam, use of Steam tables, steam calorimeters
Heat Engines:Heat Engine cycle and Heat Engine, working
substances, Classification of heat engines, Description and
thermal efficiency of Carnot; Rankine; Otto cycle and Diesel
cycles
Steam Boilers:Introduction, Classification, Cochran, Lancashire
and Babcock and Wilcox boiler, Functioning of different
mountings and accessories
Internal Combustion Engines:Introduction, Classification,
Teaching
Module
Hrs.
Weightage
4
3
25%
5
6
5
30%
4
20%
8
9
10
11
12
13
Engine details, four-stroke/ two-stroke cycle Petrol/Diesel
engines, Indicated power, Brake Power, Efficiencies
Pumps: Types and operation of Reciprocating, Rotary and
Centrifugal pumps, Priming
Air Compressors:Types and operation of Reciprocating and
Rotary air compressors, significance of Multistaging
Refrigeration & Air Conditioning:Refrigerant, Vapor
compression refrigeration system, vapor absorption refrigeration
system, Domestic Refrigerator, Window and split air conditioners
Couplings, Clutches and Brakes: Construction and applications
of Couplings (Box; Flange; Pin type flexible; Universal and
Oldham), Clutches (Disc and Centrifugal), and Brakes (Block;
Shoe; Band and Disc)
Transmission of Motion and Power: Shaft and axle, Belt drive,
Chain drive, Friction drive, Gear drive
Engineering Materials:Types and applications of Ferrous &
Nonferrous metals, Timber, Abrasive material, silica, ceramics,
glass, graphite, diamond, plastic and polymer
3
3
4
3
25%
4
4
Note: Topic No. 6 of the above syllabus to be covered in Practical Hours.
Reference Books:
1. Basic Mechanical Engineering by Pravin Kumar, Pearson
2. Thermal Science and Engineering by Dr. D.S. Kumar, S.K. Kataria & sons, Publication New
Delhi
3. Fundamental of Mechanical Engineering by G.S. Sawhney, PHI Publication New Delhi
4. Elements of Mechanical Engineering by Sadhu Singh S. Chand Publication
5. Introduction to Engineering Materials by B.K. Agrawal Tata McgraHill Publication, New Delhi
Course Outcome:
After learning the course the students should be able to
1. To understand the fundamentals of mechanical systems
2. To understand and appreciate significance of mechanical engineering in different fields of
engineering
List of Experiments:
1.
2.
3.
4.
5.
To understand construction and working of various types of boilers.
To understand construction and working of different boiler mountings and accessories.
To determine brake thermal efficiency of an I. C. Engine.
To understand construction and working of different types of air compressors.
To demonstrate vapor compression refrigeration cycle of domestic refrigerator OR window air
conditioner OR split air conditioner.
Open Ended Problems: Apart from above experiments a group of students has to undertake one
open ended problem/design problem. Few examples of the same are given below.
1. Develop a prototype of gear train/drive for certain velocity ratios.
2. Develop a small boiler with different mountings.
3. Develop a hot air engine
Major Equipments: Models of Cochran, Lancashire and Babcock and Wilcox boilers, models of
various mountings and accessories, Models of various types of IC engines, Single cylinder two
stroke /four stroke petrol/ diesel engine, models of pumps, compressors, refrigerator/air conditioner,
models of various types of brakes, coupling, clutches, drives
List of Open Source Software/learning website: http://nptel.iitm.ac.in, http://vlab.co.in/
*PA (M): 10 marks for Active Learning Assignments, 20 marks for other methods of PA
ACTIVE LEARNING ASSIGNMENTS: Preparation of power-point slides, which include videos,
animations, pictures, graphics for better understanding theory and practical work – The faculty will allocate
chapters/ parts of chapters to groups of students so that the entire syllabus of Elements of Mechanical
Engineering is covered. The power-point slides should be put up on the web-site of the College/ Institute,
along with the names of the students of the group, the name of the faculty, Department and College on the
first slide. The best three works should be sent to [email protected]
** PA (I): 10 marks for a case study of Systems, 10 marks for other methods of PA.
The case study of Systems: The case study should be of a working EE system, which shows the working of
the concepts, included in the Syllabus.
# ESE Pr (V):10 marks for Open Ended Problems, 20 marks for VIVA.
Note: Passing marks for PA (M) will be 12 out of 30.
Passing marks for ESE Pract(V) will be 15 out of 30.
Passing marks for PA (I) will be 10 out of 20