TESTING AND CONTROL OF HEAT ENGINES
Learning outcomes of the course unit
Reach basic knowledge as to develop new versions of automotive engines
Advanced of Thermal Machines
Course contents summary
Measurements and systems of units.
Testing internal combustion engines: test cells, instruments and procedures.
Measuring forces, torque, angular velocity, power, pressure, temperature, volumes, density. Speed and flow rate measurements in fluids. Heating value and gaseous species concentration measurements.
Pressure diagram, indicators, mep, heat release rate measurements. Fundamentals of road testing of vehicles.
Part load operation. Quantities to be controlled for better performance and lower emissions.
Variable valve timing. Ignition systems. Diesel and gasoline injection systems in an historical perspective.
Pressure charging: supercharging and turbocharging, engine-charger matching.
0D simulation as advanced control tool. Time-varying states in plena/cylinders, quasy-steady analysis of orifices. Filling-emptying method. 1 and 2 zone models for combustion simulation, Wiebe's function.
Berta G.L. & Vacca A.- Sperimentazione sui MCI – MUP (2004)
Horlock J.H. & Winterbone D.E. - The thermodynamics & gas dynamics of ICEs – Clarendon (1986)
Lectures, computer practice
Assessment methods and criteria