Università degli Studi di Napoli "Parthenope"

Teaching schedule

Academic year: 
2020/2021
Belonging course: 
Course of Master's Degree Programme on ENGINEERING MANAGEMENT
Location: 
Napoli
Disciplinary sector: 
ENERGY SYSTEMS AND POWER GENERATION (ING-IND/09)
Language: 
Italian
Credits: 
6
Year of study: 
2
Teachers: 
Cycle: 
Second semester
Hours of front activity: 
48

Language

ITALIAN. ENGLISH ON REQUEST.

Course description

The course is aimed at providing the knowledge of the chemical and physical phenomena that characterize the operation of the internal combustion engines as well as the issues related to engine control and exhaust emissions reduction. The course will provide the tools needed for performing a critical analysis on the choice of the ICEs according to the application fields. Moreover, great attention will be devoted to the experiments to be performed at the test bench to evaluate performance and emissions vs. engine operating conditions. Alternative powertrain systems, such as the hybrid electric powertrains, will be analyzed.

Risultati di apprendimento (declinati rispetto ai descrittori di Dublino)

Conoscenza e capacità di comprensione (knowledge and understanding).
Knowledge of the ideal and limit cycles of ICEs. Knowledge of the characteristic curves. Knowledge of the methodologies for engine control. Understanding of the aspects concerning the environmental impact of the ICEs. Knowledge of measuring instruments for test benches. Knowledge of the hybrid-electric powertrains. .

Conoscenza e capacità di comprensione applicate (applying knowledge and understanding)
Applying knowledge on performance and exhaust emissions measurements at the test benches. Applying understanding in internal combustion engine optimization criteria.

Autonomia di giudizio (making judgements)
Making judgements on the most suitable ICE depending on the application field. Making judgements on the most suitable instruments for the experimental characterization at the test bench. Making judgements on the influence of the operating and control parameters on performance and environmental impact.

Abilità comunicative (communication skills)
skill to work as part of a team and perform oral presentations on a topic dealing with testing, operation and control of internal combustion engines

Capacità di apprendere (learning skills)
skill to apply the gained expertise to different contexts from those presented during the course and to deepen the topics using materials other than those proposed.
Learning skills by finding the useful tools for elaborating the own critical analysis concerning performance and socio-economic issues.

Prerequisites

The student has to know the main contents of the courses of Physics, Chemistry and Fluid Machines:
- Stoichiometry of chemical reactions
- Combustion reactions
- Ideal gas law
- Efficiencies of Thermodynamic cycles
- Fluid dynamics of flows in ducts
- Operation of Pumps, compressors and turbines

Syllabus

INTRODUCTION to ICEs (lessons 4 h, exercises 4 h)
Classification, working principle and operating fields. Ideal and real cycles. Characteristic curves and maps, performance.
Definition/Calculation of engine parameters.
NATURAL AIR CHARGING IN 4 STROKE and 2 STROKE ENGINES (lessons 4 h, exercises 2 h)
Four stroke and two stroke engines. Air intake systems.
Definition/Calculation of performance parameters of two stroke engines. Air charging in two stroke engines.
Air charging in four stroke engines. Ram effect of incoming charge. Pressure wave tuning.
COMBUSTION (lessons 8 h)
Combustion in spark ignition engines. Knocking.
Combustion in Diesel engine: ignition delay, spray evolution. Direct injection engines. Pre-chamber combustion systems.
TURBULENCE and FLUID MOTIONS IN THE CYLINDERS (lessons 2 h)
Steady-state turbulence, unsteady-state turbulence. Mean and Instantaneous values. Cyclic dispersion in combustion engines. Length and time scales in turbulent flows. Organized motion.
SUPERCHARGING AND TURBOCHARGING (lessons 4 h)
The effect of the charging in a ideal Diesel Cycle. Volumetric and dynamic compressors. External supercharging. Mechanical Supercharging. Exhaust-gas Turbocharging.

POLLUTANT FORMATION AND CONTROL (lessons 6 h)
Pollutants formation in Diesel and spark ignition engines. EUROx regulations for emissions standards. After-treatment systems in SI engines: TWC. After-treatment systems in Diesel engines: DPF, LNT and SCR.

ENGINE CONTROL SYSTEMS (lessons 4 h, excercises 4h)
SI engine control. Impact of control variables on performance and emissions. Control strategies.
Diesel engine control. The Common Rail fuel injection system. Impact of control variables on performance and emissions. Control strategies.
DUAL FUEL ENGINES AND HYBRID ELECTRIC VEHICLES (lessons 6 h)
Dual fuel engine (diesel-methane) description. Dual fuel engine performance and emissions.
Hybrid electric vehicles (HEV). Description of the HEV powertrain lay-outs (Micro, Mild, Full, Plug-in). Operating modes and energy management.

INTRODUCTION to ICE (lessons 4 h, exercises 4 h)
NATURAL AIR CHARGING IN 4 STROKE and 2 STROKE ENGINES (lessons 4 h, exercises 2 h)
COMBUSTION IN ICE (lessons 8 h)
TURBULENCE and FLUID MOTIONS IN THE CYLINDERS (lessons 2 h)
SUPERCHARGING AND TURBOCHARGING (lessons 4 h)
POLLUTANT FORMATION AND CONTROL (lessons 6 h)
ENGINE CONTROL SYSTEMS (lessons 4 h, excercises 4h)
DUAL FUEL ENGINES AND HYBRID ELECTRIC VEHICLES (lessons 6 h).

Teaching Methods

The teaching includes theoretical lessons and exercises in the classroom. The exercises will be performed together and a discussion on the results will be carried out.

Textbooks

G. Ferrari. Motori a combustione interna. Il Capitello.
J. B. Heywood, Internal Combustion Engine Fundamentals, McGraw Hill.
Didactic materials, updates and further details on the program available on the website http://edi.uniparthenope.it/course/index.php?categoryid=17.

Learning assessment

The successful achievement of course objectives will be assessed by an interview, that lasts about 30 minutes, during which the level of knowledge of both the main issues related to engine operation and the more detailed phenomena related to engine combustion, testing and control will be assessed. In addition, the skill to present with a clear exposition exhibiting full knowledge of the topics will be also taken into account.

More information