Oct 12, 2012 ... Construction and operation of IC engine, ... Mathur and Sharma, A course on
Internal combustion Engines, Dhanpat Rai & Sons, 1998.
Faculty of Engineering & Technology, SRM University, Kattankulathur – 603203 School of Mechanical Engineering
Department of Automobile Engineering Course plan Course code Course title Semester Academic year / semester
: AE0301 : Theory of Automotive Engines :5 : 2012-’13 / Odd (July – November 2012)
Date
: 12 Oct 2012
Section details: Section
Class Roo m no
AUTO-A
MB23
AUTO-B
MB24
AUTO-C
MB26
Name
Details of Faculty member Room No. Interco e-mail id m No.
Student contact time
Mr. S. Palanisamy Mr.E. Jayabalaji
MEC201
1906
MEC205
7865
[email protected] n
[email protected]
Dr. Leenus Jesu Martin
MEC204
1901
[email protected]
12.30‐ 1.30 pm & after 4 pm
Direct assessment details: Name of assessment Cycle test - I Surprise test Cycle test - II Model examination End semester examination Attendance
Marks
Topics Engine construction and operation
Tentative date
Duration
25-07-2012 01-10-2012 11-09-2012
100 minutes 30 – 45 min 100 minutes
10 05 10
Surprise
20
Entire Syllabus
15-10-2012
3 hours
50
Entire Syllabus
20-11-2012
3 hours
05
Combustion in SI engines & combustion in CI engine
N/A
AE0301
Theory of Automotive Engines
L
T
P
C
3
2
0
4
Prerequisite Nil Student outcomes
Program Educational Objectives
1. Apply / improve their knowledge in basic sciences for excelling in various disciplines of Mechanical Engineering with the emphasis on Design, Thermal & Manufacturing. (a) an ability to apply knowledge of mathematics, science, and engineering
X
(e) an ability to identify, formulate, and solve engineering problems
X
2. Enhance professional practice to meet the global standards with ethical and social responsibility.
X
Course designed by
Department of Automobile Engineering
1
a
Student outcome
b
c
d
e
× 2
3
Category
Broad area (for professional courses only, i.e ‘under P’ category)
4
Course Coordinator
4. Develop skills to work in teams, think intellectually and pursue life‐long learning.
3. Solve industrial, social, and environment al problems with modern engineering tools.
f
h
i
j
K
×
GENERAL
BASIC SCIENCES
(G)
(B)
Manufacturin g
g
Design
ENGINEERING PROFESSIONAL SUBJECTS SCIENCES AND (P) TECHNICAL ART (E) X Thermal X
Dr. Leenus Jesu Martin.
Genaral
AE 0301 -
Theory of Automotive Engines
PURPOSE Purpose of this course is to impart knowledge about automotive SI and CI engines. INSTRUCTIONAL OBJECTIVE At the end of the course, the student will be able to understand: •
Construction and operation of IC engine,
•
Fuels and combustion of fuels in SI and CI engine,
•
Conduct performance test and carry out calculations
ENGINE CONSTRUCTION AND OPERATION Four stroke SI and CI engines - Working principle - function, materials, constructional details of engine components - Valve timing diagram - Firing order and its significance - relative merits and demerits of SI and CI engines Two stroke engine construction and operation. Comparison of four-stroke and two-stroke engine operation. FUELS AND COMBUSTION Combustion equation, conversion of gravimetric to volumetric analysis - Determination of theoretical minimum quantity of air for complete combustion - Determination of air fuel ratio for a given fuel. Properties and rating of fuels (petrol and diesel), chemical energy of fuels, reaction equation, properties of air/fuel mixture, combustion temperature, combustion chart. COMBUSTION IN SI ENGINES Combustion in premixed and diffusion flames - Combustion process in IC engines. Stages of combustion - Flame propagation - Flame velocity and area of flame front - Rate of pressure rise Cycle to cycle variation - Abnormal combustion - Theories of detonation - Effect of engine operating variables on combustion. Combustion chambers - types, factors controlling combustion chamber design. COMBUSTION IN CI ENGINE Importance of air motion - Swirl, squish and turbulence - Swirl ratio. Fuel air mixing - Stages of combustion - Delay period - Factors affecting delay period, Knock in CI engines - methods of controlling diesel knock. CI engine combustion chambers - Combustion chamber design objectives open and divided. Induction swirl, turbulent combustion chambers. - Air cell chamber - M Combustion chamber. ENGINE PERFORMANCE Performance parameters - BP, FP, IP, specific fuel consumption, volumetric efficiency, thermal efficiency, mechanical efficiency, specific weight, and heat balance. Testing of engines - different methods. Numerical problems
TEXT BOOKS •
Ganesan. V, Internal combustion engines, 2nd edition, Tata McGraw Hill Publishing Co, 2003
•
Rajput. R. K, A textbook of Internal Combustion Engines, Laxmi Publications (P) Ltd, 2005
REFERENCE BOOKS •
John. B, Heywood, Internal Combustion Engine Fundamentals, McGraw Hill Publishing Co.,
New York, 1990 •
Sharma. S. P, Chandramohan, Fuels and Combustion, Tata McGraw Hill Publishing Co, 1987
•
Mathur and Sharma, A course on Internal combustion Engines, Dhanpat Rai & Sons, 1998
SESSION PLAN Session No.
TITLE/DETAILS OF CHAPTER
REFERENCES
1- ENGINE CONSTRUCTION AND OPERATION 1
T1- 1
2
Introduction - Four stroke SI and CI engines Working principle - function, materials
T2- 1
3
Constructional details of engine components
T1- 1
4
Constructional details of engine components
T1- 1
5
T1- 2
7
Valve timing diagram Firing order and its significance Relative merits and demerits of SI and CI engines Two stroke engine construction and operation
8
Comparison of four-stroke and two-stroke engine operation.
T1- 2
9
2-FUELS AND COMBUSTION Combustion equation
T1- 2
6
10
T1- 2 T1- 2
T1- 2
12
Conversion of gravimetric to volumetric analysis Determination of theoretical minimum quantity of air for complete combustion Determination of air fuel ratio for a given fuel.
13
Properties and rating of fuels (petrol and diesel),
T1- 3
14
Chemical energy of fuels
T1- 3
15
Reaction equation
T1- 3
16
Properties of air/fuel mixture,
T1- 3
17
Combustion temperature, combustion chart.
T1- 4
11
T1- 2 T1- 2
3- COMBUSTION IN SI ENGINES 18
Combustion in premixed and diffusion flames
T1- 4
19
Combustion process in IC engines
T1- 4
20
Stages of combustion
T1- 4
21
Flame propagation
T1- 4
22
Flame velocity and area of flame front
T1- 4
23
Rate of pressure rise
T1- 4
24
Cycle to cycle variation
T1- 4
25
Abnormal combustion
T1- 10
26
Theories of detonation
T1- 10
27
Effect of engine operating variables on combustion
T1- 10
28
Combustion chambers - types
T1- 6
29
factors controlling combustion chamber design
T1- 6
4- COMBUSTION IN CI ENGINE 30
Importance of air motion- Swirl, squish and turbulence
T1- 6
31
Swirl ratio
T1- 6
32
Fuel air mixing - Stages of combustion
T1- 7
33
Delay period, Factors affecting delay period
T1- 7
34
Knock in CI engines
T1- 7
35
Methods of controlling diesel knock
T1- 7
36
CI engine combustion chambers
T1- 7
37
Combustion chamber design objectives- open and divided
T1- 9
38
Induction swirl, turbulent combustion chambers
T1- 9
39
Air cell chamber
T1- 9
40
M Combustion chamber
T1- 9
5-ENGINE PERFORMANCE 41
Performance parameters – BP, FP, IP
T1- 9
42
Numerical problems
T1- 9
43
T1- 9
45
Numerical problems Specific fuel consumption, Volumetric efficiency, Thermal efficiency, Mechanical efficiency Numerical problems
46
Numerical problems
T1- 9
47
Heat balance
T1- 9
48
Numerical problems
T1- 9
49
Testing of engines
T2- 19,20
50
Different methods in Testing
T2-18
51
Numerical problems
T2-18
44
T1- 9 T1- 9
TEXT BOOK T1. Ganesan. V, Internal combustion engines, 2nd edition, Tata McGraw Hill Publishing Co, 2003.
T2. Rajput. R. K, A textbook of Internal Combustion Engines, Laxmi Publications (P) Ltd, 2005. REFERENCE BOOKS R1. John. B, Heywood, Internal Combustion Engine Fundamentals, McGraw Hill Publishing Co., New York, 1990. R2. Sharma. S. P, Chandramohan, Fuels and Combustion, Tata McGraw Hill Publishing Co, 1987. R3. Mathur and Sharma, A course on Internal combustion Engines, Dhanpat Rai & Sons, 1998.
Name & Signature Faculty:
Section
Name
AUTO-A
Mr.S. Palanisamy
AUTO -B
Mr.E. Jayabalaji
AUTO-C
Dr. Leenus jesu Martin
Signature
HOD/AUTO
