CODE 72377 ACADEMIC YEAR 2016/2017 CREDITS 6 cfu anno 2 INGEGNERIA NAUTICA (L-9) - SCIENTIFIC DISCIPLINARY SECTOR ING-IND/08 LANGUAGE Italiano TEACHING LOCATION SEMESTER 1° Semester PREREQUISITES Propedeuticità in ingresso Per sostenere l'esame di questo insegnamento è necessario aver sostenuto i seguenti esami: Pleasure Craft Engineering 8721 (coorte 2015/2016) GENERAL PHYSICS 56987 2015 INGEGNERIA E DESIGN PER LA NAUTICA 10134 (coorte 2015/2016) GENERAL PHYSICS 56987 2015 MODULES Questo insegnamento è un modulo di: APPLIED PHYSICS + THERMAL AND FLUID MACHINERY A TEACHING MATERIALS AULAWEB AIMS AND CONTENT LEARNING OUTCOMES (FURTHER INFO) The aim of the course is to provide an adequate and critical knowledge on the main fluid machines with particular reference to those applied to naval propulsion sector, taking into account turbines, compressors and pumps, internal combustion engines with special reference to energy-related and environmental issues. 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 – Primary energy sources and their transformations – Power plants and relevant application areas – Energy equation and expression of work in closed and open systems - Fluid machines classification - Work exchange in volumetric machines and turbomachines - Euler’s equation - Conversion efficiency in fluid machines - Thermodynamic cycles - Thermal power plants overall efficiency - Specific fuel consumption. 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. 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. Steam power plants – Steam cycles - Methods to improve the cycle performance – Steam cycle components: boiler, steam turbines, condenser, pumps, heat exchangers. Gas turbine power plants – General aspects, open and closed circuit plants - Gas cycles: ideal and fuel-air and real cycle - Gas turbine power plant components: compressor, combustion chamber, expander. Practice Calculation of energy systems, compressors, pumps and internal combustion engines operating parameters. RECOMMENDED READING/BIBLIOGRAPHY S. Marelli: “Macchine 1” – Notes to the course (in Italian). S.L.Dixon - Fluid Mechanics Thermodynamics of Turbomachinery - Pergamon Press, 2005. C.R. Ferguson, A.T. Kirkpatrick - Internal Combustion Engines - Wiley, 2001. TEACHERS AND EXAM BOARD SILVIA MARELLI Ricevimento: Consulting hours on demand. Exam Board FRANCESCO DEVIA (President) SILVIA MARELLI (President) ALESSANDRO BOSIO MASSIMO CAPOBIANCO GUGLIELMO LOMONACO ANNALISA MARCHITTO MARIO MISALE GIORGIO ZAMBONI LESSONS Class schedule THERMAL AND FLUID MACHINERY EXAMS EXAM DESCRIPTION Examination: oral test. Exam schedule Data appello Orario Luogo Degree type Note 08/06/2017 10:00 LA SPEZIA Orale 10/07/2017 10:00 LA SPEZIA Orale 08/09/2017 10:00 LA SPEZIA Orale