FLUID MACHINERY

FLUID MACHINERY

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iten
Code
80377
ACADEMIC YEAR
2019/2020
CREDITS
6 credits during the 2nd year of 10800 MECHANICAL ENGINEERING - ENERGY AND PRODUCTION (L-9) SAVONA
SCIENTIFIC DISCIPLINARY SECTOR
ING-IND/08
LANGUAGE
Italian
TEACHING LOCATION
SAVONA (MECHANICAL ENGINEERING - ENERGY AND PRODUCTION)
semester
2° Semester
modules
This unit is a module of:
Teaching materials

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” - 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

MASSIMO CAPOBIANCO (President)

FERRUCCIO PITTALUGA (President)

MARCO FOSSA (President)

PIETRO ZUNINO

ANTONELLA PRIARONE

LESSONS

Teaching methods

The course is organized in lectures and exercises.

LESSONS START

The teaching module is offered in the second semester of the academic year.

EXAMS

Exam description

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

Exam schedule

Date Time Location Type Notes
10/06/2020 14:30 SAVONA Orale
02/07/2020 14:30 SAVONA Orale
04/09/2020 14:30 SAVONA Orale
26/10/2020 14:30 SAVONA Orale

FURTHER INFORMATION

Pre-requisites:

Basic knowledge of thermodynamics and fluid mechanics.