INTERNAL COMBUSTION ENGINES


General Info



Course Content / Syllabus


Introduction to Internal Combustion Engines, general principles of operation, fields of application, basic principles of operation of piston and rotary engines. Reciprocating enginess: description and analysis of the kinetic mechanism, basic geometric characteristics, volume capacity, compression ratio 4- & 2-stroke engines Otto's ideal air cycle: thermodynamic analysis and basic calculations of the main characteristics: efficiency, mean pressure, theoretical power, parametric study. Modeling of the combustion process in gasoline engines. Diesel ideal air cycle: thermodynamic analysis and basic calculations of the main characteristics: efficiency, mean pressure, theoretical power, parametric study and comparison with the Otto cycle. Modeling of the combustion process in diesel engines Dual ideal air cycle and its correlation with Otto and Diesel engines. Theory of combustion in ICE, stoichiometry analysis and definition of the ratio of air- fuel equivalence. Preparation of the combustible mixture. • Real ICE cycles and their differences from the theoretical air cycles. Fuel Injection systems (direct and indirect) and ignition in gasoline engines. Fuel injection systems in diesel engines. Design of combustion chambers and pistons. Octane and cetane numbers. Pressure – Volume chart in gasoline and diesel engines and related quantities: indicative work and indicative performance Air induction – preparation of air-fuel mixture. Turbo- and Super-charging systems. Key operating parameters of a real ICE: torque, efficiency, specific fuel consumption, mean pressure, mechanical efficiency. Energy balance in actual ICEs ICE subsystems: cooling, lubrication, valve movement, starter. Multi-cylinder ICEs – Different cylinder arrangements Air pollution and related anti-pollution technologies Characteristics of Marine Diesel Engines. 2 and 4 stroke engines, range of marine engines revolution speeds. Analysis of the special characteristics of slow-moving two- stroke marine engines and their wide applications Rotary internal combustion engines: gas turbine, Joule-Brayton cycle, performance improvements, simple / complex devices, thermodynamic analysis, Gas turbine combustion chambers, turbine blade cooling techniques, Functional characteristics, Compressor -Turbine matching, gas turbine load adjustment. Laboratory exercises using two laboratory engine rigs employing an experimental single-cylinder variable-compression ratio gasoline engine and a twin cylinder diesel engine, a test rig for fuel injectors, a test rig for diesel fuel pumps, a compression tester, a pollutants measurement instrument and tools for assembling and disassembling ICEs.


Course Outline



  1. G.B. = General Background, S.B. = special background, S.: Specialised.↩︎