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Macchine e Sistemi Energetici (M/Z)
Fluid-Machines and Energy Systems
Leonardo Pelagalli

Seat Ingegneria
A.A. 2015/2016
Credits 9
Hours 72
Period I
Language ENG

Prerequisites
Mathematical analysis, Physics, Thermodynamics, Fluidynamics

Learning outcomes
The aim of the course is to provide the student with the tools for understanding the operation of the main energy conversion systems and of the fluid machines they contain.

Program
Introduction and classification of fluid machines Reminds on thermodynamic and fluidynamic applied to fluid machines Hydraulic energy exploitation in hydraulic plants - Pelton, Francis and Kaplan turbine types. Positive displacement pumps and centrifugal pumps. Positive displacement compressors Principals of reciprocating internal combustion engines: reference cycles for both compression and spark ignited engines, combustion process in internal combustion engines; fuel injection plants; Torque and power curves and load matching. Steam plants: thermodynamical cycles and methods to increase conversion efficiency; steam generator and basics on the other components of the plant: condenser, pump, turbine, surface and direc contact regenerative heat exchangers. Turbogas plants: thermodynamical cycles and methods to increase their conversion efficiency and specific work. Basics on turbogas plant components: compressor, combustion chamber and turbine.

Development of the examination
LEARNING EVALUATION METHODS
The assessment of student's learning will take place by means of an oral preceded by a written pre-test consisting of a synthetic answer to three or four questions about basic topics. The overcoming of the pre-test is needed for admission to the oral examination.

LEARNING EVALUATION CRITERIA
The assessment of learning will be based first in the pre-written exam and then in the interview, verifing that the student has well-clear about the basic concepts connected with the operation of machines and energy systems covered during the course. The student will have to acquire competence in respect of constructional configurations and operating conditions and will also have to demonstrate knowledge of the order of magnitude of the main parameters related.

LEARNING MEASUREMENT CRITERIA
Attribution of the final mark out of thirty. The final evaluation results from the weighted average of the pre-trial written examination (25%) and oral (75%). To pass the exam both tests should be sufficient.

FINAL MARK ALLOCATION CRITERIA
In order that the final outcome of the evaluation is positive, the student will have to prove that he has no gaps on basic skills covered in the course. The highest rating is achieved by demonstrating in-depth knowledge of the course content. Praise is given to students who, having done the pre-exam and oral fairly and with good level of detail, have also shown a particular brilliance in exposure and/or have demonstrated particular mastery of the material knowing also the use of the acquired skills to analyze topics not explicitly covered or treating the topics in a way alternative to the proposed one.

Recommended reading
Macchine Renato Della Volpe Liguori Editore Motori a combustione interna Giancarlo Ferrari Il Capitello Torino Macchine idrauliche G. Minelli - Ed. Pitagora Bologna Sistemi energetici e loro componenti, Considerazioni teoriche e valutazioni numeriche - G

Courses

• Ingegneria Meccanica (Corso di Laurea Triennale (DM 270/04))