Salta al contenuto principale della pagina

FLUID MACHINERY

CODE 66166
ACADEMIC YEAR 2021/2022
CREDITS
  • 6 cfu during the 3nd year of 8720 INGEGNERIA MECCANICA (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. Combustion processes: general aspects, combustion in SI and diesel engines. Part load operation of SI and diesel engines. ICE performance curves. Supercharging and turbocharging: basic plants design, application fields, operational issues. ICE emissions: pollutants formation processes and their effect on health and environment, 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” - CittàStudi Edizioni, 2020.
    • G. Cornetti, F. Millo - “Macchine idrauliche”, “Macchine a gas” - Il Capitello, 2015.
    • G. Ferrari - "Motori a combustione interna" - Esculapio, 2016.
    • O. Acton, C. Caputo - “Compressori ed espansori volumetrici”, UTET, 1992.
    • O. Acton - “Turbomacchine”, UTET, 1992.

    TEACHERS AND EXAM BOARD

    Exam Board

    MASSIMO CAPOBIANCO (President)

    DARIO BARSI

    MATTEO DELLACASAGRANDE

    DAVIDE LENGANI

    MATTEO LUZZI

    SILVIA MARELLI

    FRANCESCA SATTA

    DANIELE SIMONI

    VITTORIO USAI

    GIORGIO ZAMBONI

    PIETRO ZUNINO (President Substitute)

    LESSONS

    Class schedule

    FLUID MACHINERY

    EXAMS

    EXAM DESCRIPTION

    Oral exam on the topics presented during the lessons and exercises.

     

    ASSESSMENT METHODS

    The oral examination will be focused on the topics treated during the lessons and will be aimed at evaluating not only the fulfilment of an adequate knowledge level, but also the acquisition of critical analysis skills on the topics of the exam and the aptitude of correlation of different topics.

    Exam schedule

    Date Time Location Type Notes
    21/12/2021 09:00 GENOVA Orale
    13/01/2022 09:00 GENOVA Orale
    15/02/2022 09:00 GENOVA Orale
    14/06/2022 09:00 GENOVA Orale
    14/07/2022 09:00 GENOVA Orale
    01/09/2022 09:00 GENOVA Orale

    FURTHER INFORMATION

    Pre-requisites:

    Energy Systems course contents.

    Basic knowledge of thermodynamics and fluid mechanics.