The course provides introductory overview of spark ignition and compression ignition engines. Describes combustion chemistry, and identifies the parameters and engine operations to develop understanding of the thermodynamics and combustion process for a quantitative analysis of internal combustion engines. Detail of gas exchange and inflow and outflow of gases explained. Engine classification, engine cycle, combustion processes, reaction of engine fuels, release of energy and ultimate conversion into useful work is illustrated. A concise discussion on topics like performance of engines, Knocking, Octane number, Cetane number, engine valve timing, ignition advance/ retard, and working principle of turbo-charged engine is also included. Highlighting that Internal Combustion Engines are a source of pollution and controlling the emissions is emphasized.


CLO-1: Distinguish various cycles related to internal combustion engines and analyze combustion processes in engines. (C4)
CLO-2: Evaluate and relate engine design parameters to performance data for a variety of IC engine systems. (C5)
CLO-3: Apply various methods to control pollution and explain pollutant formation in IC engines. (C3)
CLO-4: Design and analyze engine systems for sustainability under various constraints. (C6)


  • Thermodynamic review of IC engine related topics – Two Lectures
  • Chap 1; Introduction Engine types and Basic Operations – Two Lectures
  • Chap 2; Standard cycles and analysis, Operation parameters and characteristics – Four Lectures
  • Chap 3; Thermo-Chemistry of fuel air Mixture – Four Lectures
  • Chap 4; Fuel Cycles and Analysis – Four Lectures
  • Chap 5; Models of Engine cycles – Four Lectures
  • Chap 6; Combustion in spark ignition engine – Two Lectures
  • Chap 7; Combustion in compression ignition Engine – Two Lectures
  • Chap 8, 9, and 10; Fuels and Knocking Carburettors and fuel injectors – Four Lectures
  • Chapters; Friction, Lubrication, and Pollution – Two Lectures
  • Project presentations – Two Lectures