CODE 90463 ACADEMIC YEAR 2017/2018 CREDITS 6 cfu anno 2 SAFETY ENGINEERING FOR TRANSPORT, LOGISTICS AND PRODUCTION 10377 (LM-26) - SCIENTIFIC DISCIPLINARY SECTOR ING-IND/08 LANGUAGE English TEACHING LOCATION SEMESTER 1° Semester MODULES Questo insegnamento è un modulo di: MACHINES AND SYSTEMS FOR TRANSPORT, LOGISTICS, AND ENVIRONMENT OVERVIEW The course deals with the most relevant topics relating to the main fluid machines with particular reference to those applied to transportation sector. AIMS AND CONTENT LEARNING OUTCOMES The aim of the course is to provide an adequate and critical knowledge on the main fluid machines (such as turbines, compressors, pumps, and internal combustion engines) with particular reference to those applied to transportation sector, taking into account energy-related and environmental issues. Innovative propulsion systems (hybrid propulsion systems and the application of fuel cells to road vehicles propulsion) and the use of alternative fuels (NG, LPG, hydrogen and biofuels) will be also deepened. TEACHING METHODS Lectures on the different items presented in the course programme and exercises on specific arguments developed within the course. SYLLABUS/CONTENT Lectures General remarks on fluid machines – Fluid machines classification – Work exchange in volumetric machines and turbomachines – Conversion efficiency in fluid machines Compressors and pumps – Positive displacement and dynamic compressors – Compressor insertion in a circuit – Characteristic curves - Positive displacement and dynamic pumps – Pumps operative problems: operating point and flow regulation, series and parallel operation, pump priming, surge and cavitation. Internal Combustion Engines (ICE) – ICE classification, engine components, nomenclature, operational parameters – Ideal and real operation of 2 and 4 stroke engines – Reference thermodynamic cycles for SI and diesel engines – Combustion processes in ICE – Indicated diagrams, indicated and brake mean effective pressure, engine power correlations – Engine part load operation – Constant speed and constant load curves, engine performance maps – Supercharging and turbocharging – ICE pollutant emissions – Emission control systems and aftertreatment devices (exhaust gas recirculation, catalytic converter, particulate filter) – Normalized test procedures for vehicle emissions determination, European emission limits. Alternative fuels – Conventional gaseous fuels (NG, LPG): problems, energy-related, operating and economic issues, effect on exhaust emissions – Hydrogen and hydrogen-methane mixtures for thermal engine powertrains – Biofuels: types, legislation, production techniques, effects on fuel consumption and exhaust emissions – Well-to-wheel energy analysis and CO2 emission overall balance. Innovative propulsion systems – Fuel cell application to propulsion systems: general overview on the electrochemical conversion process, fuel cell types and characteristics, operating problems, performance, energy and emissive balance, applications, technical and economic issues, future developments. - Electric propulsion: advantages/disadvantages, performance, operating range, costs, energy storage devices characteristics - Hybrid propulsion: hybrid system configurations, hybrid categories (start-&-stop, micro, mild, full hybrid systems), characteristics and limits of operating configurations, production vehicles, global energy and emissive balance, future developments. Practice Calculation of compressors, pumps and internal combustion engines operating parameters. Measurements of turbomachines and internal combustion engines characteristic curves. RECOMMENDED READING/BIBLIOGRAPHY S. Marelli: “Macchine e sistemi propulsivi” – Notes to the course (in Italian). R. Della Volpe – Macchine – Liguori, 2011. S.L.Dixon - Fluid Mechanics Thermodynamics of Turbomachinery - Pergamon Press, 2005. G. Ferrari – Motori a Combustione Interna – Il Capitello, 2005. C.R. Ferguson, A.T. Kirkpatrick - Internal Combustion Engines - Wiley, 2001. TEACHERS AND EXAM BOARD SILVIA MARELLI Ricevimento: Consulting hours on demand sending an e-mail to silvia.marelli@unige.it. Exam Board MASSIMO CAPOBIANCO (President) SILVIA MARELLI (President) GIORGIO ZAMBONI LESSONS Class schedule The timetable for this course is available here: Portale EasyAcademy EXAMS EXAM DESCRIPTION Oral exam. ASSESSMENT METHODS Oral exam. Exam schedule Data appello Orario Luogo Degree type Note 16/01/2018 09:00 GENOVA Orale 15/02/2018 09:00 GENOVA Orale 29/03/2018 09:00 GENOVA Orale 07/06/2018 09:00 GENOVA Orale 10/07/2018 09:00 GENOVA Orale 06/09/2018 09:00 GENOVA Orale FURTHER INFORMATION Pre-requisites Basic knowledge on energy systems.
