CH3301 Syllabus - Basic Mechanical Engineering - 2021 Regulation Anna University

CH3301 Syllabus - Basic Mechanical Engineering - 2021 Regulation Anna University

CH3301	BASIC MECHANICAL ENGINEERING	LTPC

3003

COURSE OBJECTIVES:

• To impart knowledge on thermodynamics and thermal engineering power generating units such as engines and theory of machines

UNIT I	LAWS OF THERMODYNAMICS	9

Basic concepts and hints; Zeroth law; First Law of Thermodynamics - Statement and application; Steady flow energy equation-problems- Second law of Thermodynamics – Kelvin - Plank statement and Clausius statement- problems; Limitations; Heat Engine, Refrigerator and Heat Pump, Available energy, Third law of Thermodynamics - Statement.

UNIT II	HEATING AND EXPANSION OF GASES	9

Expressions for work done, Internal energy and heat transfer for Constant Pressure, Constant Volume, Isothermal, Adiabatic and Polytropic processes-Derivations and problems; Free expansion and Throttling process.

UNIT III	AIR STANDARD CYCLES	9

Carnot cycle; Stirlings cycle; Joule cycle; Otto cycle; Diesel cycle; Dual combustion Cycle-Derivations and problems.

UNIT IV	I.C. ENGINES, STEAM AND ITS PROPERTIES AND TEAM	9

Engine nomenclature and classification; SI Engine; CI Engine; Four Stroke cycle, Two stroke cycle; Performance of I.C.Engine; Brake thermal efficiency; Indicated Thermal Efficiency, Specific fuel consumption. Steam - Properties of steam; Dryness fraction; latent heat; Total heat of wet steam; Dry steam; 57 Superheated steam. Use of steam tables; volume of wet steam, volume of superheated steam; External work of evaporation; Internal energy; Entropy of vapour, Expansion of vapour, Rankine cycle. Steam turbines – Impulse and Reaction types - Principles of operation.

UNIT V	SIMPLE MECHANISM, FLY WHEEL, DRIVES AND BALNCING	9

Definition of Kinematic Links, Pairs and Kinematic Chains; Flywheel-Turning moment Diagram; Fluctuation of Energy. Belt and rope drives; Velocity ratio; slip; Creep; Ratio of tensions; Length of belt; Power Transmitted; gear trains-types. Balancing of rotating masses in same plane; Balancing of masses rotating in different planes.

TOTAL: 45 PERIODS

COURSE OUTCOMES: On Completion of the course, the students would

• Thermodynamics and thermal engineering to understand the principles behind the operation of thermal equipments like IC engines and turbines.
• Be able to appreciate the theory behind operation of machinery and be able to design simple mechanisms.

TEXT BOOKS:

1. Nag, P.K., “Engineering Thermodynamics “, IInd Edition, Tata McGraw Hill Publishing Co., Ltd., 1995.
2. Rajput, R .K, “Thermal Engineering”, Laxmi publications (P) Ltd, 2001. 3. Khurmi R.S., and Gupta J.K, “Theory of Machines”, Eurasia Publishing House (P) Ltd., 2004.

REFERENCES:

1. Bhaskaran, K.A., and Venkatesh, A., “Engineering Thermodynamics “,Tata McGraw Hill, 1973.
2. Khurmi R.S., and Gupta J.K, “Thermal Engineering”, S.Chand & Company (P) Ltd.,2001.
3. Kothandaraman and Dhomkundwar,”: A course in Thermal Engineering (SI Units)”, Dhanpat Rai and Sons, Delhi (2001).
4. Pandya A. and Shah, “ Theory of Machines “, Charatakar Publishers, 1975.
5. Smith, “Chemical Thermodynamics “, Reinhold Publishing Co., 1977.