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FLUID MACHINERY

CODE 80377
ACADEMIC YEAR 2021/2022
CREDITS
  • 6 cfu during the 2nd year of 10800 INGEGNERIA MECCANICA - ENERGIA E PRODUZIONE (L-9) - SAVONA
  • SCIENTIFIC DISCIPLINARY SECTOR ING-IND/08
    LANGUAGE Italian
    TEACHING LOCATION
  • SAVONA
  • SEMESTER 2° Semester
    MODULES This unit is a module of:
    TEACHING MATERIALS AULAWEB

    OVERVIEW

    The module provides the students with the fundamental skills to interpret the processes, as well as the technologies, related to fluid machines, thermal machines and energy conversion systems. This allows the student to master the basic principles of thermodynamics and fluid dynamics when applied to the design and the analysis of energy conversion equipment, as well as to address the functional behavior of fluid machines both in themselves and when components of power systems.

    AIMS AND CONTENT

    LEARNING OUTCOMES

    The course provides the skills to interpret the functional processes, and the basic design configurations, related to Energy Conversion Machines (ECM), i.e. fluid machines, thermal machines and power plants

    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.

    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” - 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

    MARCO FOSSA (President)

    DARIO BARSI

    ALESSIA BOCCALATTE

    MATTEO DELLACASAGRANDE

    MATTEO LUZZI

    SILVIA MARELLI

    SAMUELE MEMME

    ANTONELLA PRIARONE

    DANIELE SIMONI

    VITTORIO USAI

    GIORGIO ZAMBONI

    MASSIMO CAPOBIANCO (President Substitute)

    PIETRO ZUNINO (President Substitute)

    LESSONS

    Class schedule

    All class schedules are posted on the EasyAcademy portal.

    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
    14/01/2022 14:30 SAVONA Orale
    09/02/2022 14:30 SAVONA Orale
    13/06/2022 14:30 SAVONA Orale
    11/07/2022 15:00 SAVONA Orale
    02/09/2022 14:30 SAVONA Orale

    FURTHER INFORMATION

    Pre-requisites:

    Basic knowledge of thermodynamics and fluid mechanics.