CODE 66166 ACADEMIC YEAR 2018/2019 CREDITS 6 cfu anno 3 INGEGNERIA MECCANICA 8720 (L-9) - GENOVA SCIENTIFIC DISCIPLINARY SECTOR ING-IND/08 LANGUAGE Italian TEACHING LOCATION GENOVA SEMESTER 1° Semester TEACHING MATERIALS AULAWEB OVERVIEW The course deals with the fundamentals of positive displacement and dynamic fluid machines in order to analyse their functional behaviour and evaluate the key performance aspects. AIMS AND CONTENT LEARNING OUTCOMES The aim of the course is to provide the student a basic knowledge of positive displacement and dynamic fluid machines with reference to their functional behaviour and performance characteristics. AIMS AND LEARNING OUTCOMES At the end of the course the student should achieve a basic knowledge about the operation of positive displacement and dynamic fluid machines and be able to evaluate the main performance aspects. PREREQUISITES It is required that the student has acquired sufficient knowledge of the basic aspects related to applied thermodynamics and fluid mechanics. TEACHING METHODS The course is organized in lectures and exercises. SYLLABUS/CONTENT A. Positive displacement fluid machines - Introductory concepts Classification of fluid machines. The energy equation and the expression of work. Conversion efficiency in fluid machinery. Work exchange in the positive displacement fluid machines . - Reciprocating internal combustion engines (ICE) Historical overview and fields of application. Basic knowledge on ICE: classification, components and nomenclature, main operational parameters. Ideal and real operation of 2 and 4 stroke engines. Indicated diagrams, indicated and brake mean effective pressure, engine power correlations. Reference thermodynamic cycles for spark ignition (SI) and diesel engines. Regular and abnormal combustion processes in ICE. Part load operation of SI and diesel engines. ICE performance curves. Supercharging and turbocharging: basic plants design, application fields, operational issues, thermodynamic cycles, compressor and turbine power. ICE pollutant emissions: influence of combustion process and operational engine parameters on exhaust emissions, emission control systems and aftertreatment devices for SI and diesel engines. - Positive displacement compressors and pumps Reciprocating displacement compressors: operating principle, constructive characteristics, ideal and real working cycle, flow rate control systems. Rotary displacement compressors: vane, lobe, liquid ring, screw compressors. Volumetric pumps: alternative and rotary machines, working principle, construction types. Characteristic curves. Fluid machine-circuit matching. RECOMMENDED READING/BIBLIOGRAPHY M. Capobianco - “Macchine volumetriche” – Appunti del corso. R. Della Volpe - “Macchine” - Liguori Editore, 2011. V. Dossena, G. Ferrari, P. Gaetani, G. Montenegro, A. Onorati, G. Persico - “Macchine a fluido” - De Agostini (CittàStudi Edizioni), 2015. G. Cornetti, F. Millo - “Macchine idrauliche”, “Macchine a gas” - Il Capitello, 2015. G. Ferrari - "Motori a combustione interna" - Il Capitello, 2008. O. Acton, C. Caputo - “Compressori ed espansori volumetrici”, UTET, 1992. O. Acton - “Turbomacchine”, UTET, 1992. TEACHERS AND EXAM BOARD MASSIMO CAPOBIANCO Ricevimento: Meetings with the students by appointment (please send an e-mail to massimo.capobianco@unige.it). PIETRO ZUNINO Ricevimento: Meetings with the students by appointment. Please send a request by e-mail at the address pietro.zunino@unige.it Exam Board MASSIMO CAPOBIANCO (President) PIETRO ZUNINO (President) DARIO BARSI SILVIA MARELLI LUCA RATTO VITTORIO USAI GIORGIO ZAMBONI LESSONS LESSONS START According to the calendar published by the Polytechnic School. Class schedule FLUID MACHINERY EXAMS EXAM DESCRIPTION Oral exam on the topics presented during the lessons and exercises. Exam schedule Data appello Orario Luogo Degree type Note 17/01/2019 09:00 GENOVA Orale 26/02/2019 09:00 GENOVA Orale 28/03/2019 09:00 GENOVA Orale 18/06/2019 09:00 GENOVA Orale 08/07/2019 09:00 GENOVA Orale 03/09/2019 09:00 GENOVA Orale 29/10/2019 09:00 GENOVA Orale FURTHER INFORMATION Pre-requisites: Energy Systems course contents. Basic knowledge of thermodynamics and fluid mechanics.
