FLUID MACHINERY

FLUID MACHINERY

_
iten
Code
66166
ACADEMIC YEAR
2018/2019
CREDITS
6 credits during the 3nd year of 8720 Mechanical Engineering (L-9) GENOVA
SCIENTIFIC DISCIPLINARY SECTOR
ING-IND/08
LANGUAGE
Italian
TEACHING LOCATION
GENOVA (Mechanical Engineering)
semester
1° Semester
Teaching materials

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

Ricevimento: Meetings with the students by appointment (please send an e-mail to massimo.capobianco@unige.it).

Ricevimento: Meetings with the students by appointment. Please send a request by e-mail at the address pietro.zunino@unige.it

Exam Board

PIETRO ZUNINO (President)

MASSIMO CAPOBIANCO (President)

GIORGIO ZAMBONI

VITTORIO USAI

LUCA RATTO

SILVIA MARELLI

DARIO BARSI

LESSONS

Teaching methods

The course is organized in lectures and exercises.

LESSONS START

According to the calendar published by the Polytechnic School.

ORARI

L'orario di tutti gli insegnamenti è consultabile su EasyAcademy.

Vedi anche:

FLUID MACHINERY

EXAMS

Exam description

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

 

FURTHER INFORMATION

Pre-requisites:

Energy Systems course contents.

Basic knowledge of thermodynamics and fluid mechanics.