Internal Combustion Engines

Objective of the course is to introduce the student to the Internal Combustion Engine Fundamentals. The student must understand the basic components of internal combustion engines, their design, as well as the main combustion chamber types. Also, to understand the flow characteristics inside the engine cylinder, the heat transfer and thermal loading computations, the powertrain dynamics and the engine management systems design and operation.

Objectives

Objective of the course is to introduce the student to the Internal Combustion Engine Fundamentals. The student must understand the basic components of internal combustion engines, their design, as well as the main combustion chamber types. Also, to understand the flow characteristics inside the engine cylinder, the heat transfer and thermal loading computations, the powertrain dynamics and the engine management systems design and operation.

Prerequisites

THERMODYNAMICS I THERMODYNAMICS II FLUID MECHANICS I FLUID MECHANICS II MACHINE ELEMENTS

Syllabus

Historic evolution of Internal Combustion Engine. Reciprocating engine cycles–gas turbine cycles. Design, construction, materials of engine components – subsystems. Main categories of reciprocating engines. Vehicle engines. Naval engines. Static engines. Airplane engines. Gas turbines. Engine design and operation parameters. Thermochemistry of flammable air-fuel mixtures. Thermophysical properties software. A/F calculation based on exhaust gas composition. Engine breathing processes. Flow through valves – ports. Supercharging. Mixture preparation in SI engines. Flow in the cylinder. Combustion in Spark-Ignition engines. Thermodynamic Analysis, computation of fuel burning rates by analysis of indicator diagram. Flame structure, propagation, engine knock. Combustion in diesel engines. IDI and DI combustion chambers. Diesel fuel injection systems. Fuel jet behavior, droplet distribution. Droplet vaporization – ignition. Ignition delay. Gasoline Direct Injection Engines (GDI). Gas turbine combustion. Heat transfer in reciprocating engine cooling systems. Computation of thermal loading of engine components (piston, cylinder head, cylinder liners, exhaust valves. Diesel engine simulation. SI engine simulation. Engine friction and lubrication. Supercharging – turbocharging. Pollutant formation and control.