IC4010 Supercharging and Turbocharging Syllabus:

IC4010 Supercharging and Turbocharging Syllabus – Anna University PG Syllabus Regulation 2021

COURSE OBJECTIVES:

1. To gain knowledge in supercharging and scavenging.
2. To study the thermodynamics of turbo charging
3. To introduce the basic concepts of two stroke cycle engines
4. To gain knowledge in the design of ports and exhaust systems
5. To introduce students the future trends in the design of two stroke cycle engines

UNIT I SUPERCHARGING

Engine modifications required – Effects on Engine performance – Thermodynamics, Mechanical Supercharging. Types of compressors – Positive displacement blowers – Centrifugal compressors – Performance characteristic curves – Suitability for engine application – Matching of supercharger, compressor and engine.

UNIT II TURBOCHARGING

Turbocharging methods – Thermodynamics – Engine exhaust manifolds arrangements. – Waste gate, Variable nozzle turbochargers, Variable Geometry Turbocharging– Multistage turbocharging – Matching of compressor, Turbine and Engine.

UNIT III SCAVENGING OF TWO STROKE ENGINES

Features of two stroke cycle engines – Classification of scavenging systems – Charging Processes in two stroke cycle engine – Terminologies – Sankey diagram – Relation between scavenging terms – scavenging modeling – Perfect displacement, Perfect mixing. Mixture control through Reed valve induction

UNIT IV PORTS AND MUFFLER DESIGN

Porting – Port flow characteristics-Design considerations – Design of Intake and Exhaust Systems – Tuning- Kadenacy system.

UNIT V EXPERIMENTAL METHODS AND RECENT TRENDS IN TWO STROKE ENGINES

Experimental techniques for evaluating scavenging – Firing engine tests – Non firing engine tests – Development in two stroke engines for improving scavenging. Direct injection two stroke concepts.

COURSE OUTCOMES:

1. Recognize and understand reasons for differences among operating characteristics of superchargers
2. Differentiate among different types of turbocharging methods and design turbochargers
3. Exposure to the different terminologies and scavenging systems
4. Design a two stroke cycle engine
5. Develop skills to run engine dynamometer experiments and understand methods of eliminating short circuiting

REFERENCES:

1. Blair G P, Two stroke Cycle Engines Design and Simulation, SAE Publications, 1997.
2. Heinz Heisler, Advanced Engine Technology, Butterworth Heinmann Publishers, 2002.
3. John B. Heywood, Two Stroke Cycle Engine, SAE Publications, 1999.
4. Schweitzer, P.H., Scavenging of Two Stroke Cycle Diesel Engine, MacMillan Co., 1949.
5. Watson, N. and Janota, M.S., Turbocharging the I.C. Engine, MacMillan Co., 1982.