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Scheda Riassuntiva
Anno Accademico 2015/2016
Scuola Scuola di Ingegneria Industriale e dell'Informazione
Insegnamento 095909 - ENERGY CONVERSION A
Docente Valenti Gianluca
Cfu 10.00 Tipo insegnamento Monodisciplinare

Corso di Studi Codice Piano di Studio preventivamente approvato Da (compreso) A (escluso) Insegnamento
Ing Ind - Inf (Mag.)(ord. 270) - BV (477) ENERGY ENGINEERING - INGEGNERIA ENERGETICAEEHAZZZZ095909 - ENERGY CONVERSION A
EEPAZZZZ095909 - ENERGY CONVERSION A
EESAZZZZ095909 - ENERGY CONVERSION A
EMDAZZZZ095909 - ENERGY CONVERSION A
Ing Ind - Inf (Mag.)(ord. 270) - BV (478) NUCLEAR ENGINEERING - INGEGNERIA NUCLEARE*AZZZZ095909 - ENERGY CONVERSION A
Ing Ind - Inf (Mag.)(ord. 270) - BV (479) MANAGEMENT ENGINEERING - INGEGNERIA GESTIONALE*AZZZZ095909 - ENERGY CONVERSION A
098408 - ENERGY CONVERSION A

Programma dettagliato e risultati di apprendimento attesi

Objectives and contents of the course

The course, designed for those students who already possess competences in energy topics, covers the electricity generation in modern power plants, focusing in particular on the inherent relation among working fluids, thermodynamic cycles and plant equipment. Thermodynamic, economical, management, environmental, and strategic aspects are addressed. Despite most of the course is dedicated to large-scale fossil-fueled centralized power generation, other technologies, such as Organic Rankine Cycles (ORC) and micro-cogeneration, are presented more briefly. The goal is providing the students with the knowledge and competence to understand, design (in a simplified manner) and optimize (ideally) current and future power plants.

 

Description of the course topics

1. Working fluid properties: thermodynamic properties of ideal gases; real fluids (vapors and liquids); influence on the design of turbomachines, heat exchanger, and power cycle (conventional and unconventional cycles, open and close cycles).

2. Second-law analysis of power cycles: second-law analyses (energy and entropy balances) of diverse power cycles (open and close, fossil and renewable); physical meaning of entropy; choice of the heat source reservoir.

2.a. Advanced steam cycles: historical evolution of pulverized-coal power plants; ultra-supercritical cycles; emission abetment, control logics and plant management; second-law analysis and future developments; clean coal technologies.

2.b. Advanced gas turbines and combined cycle: historical evolution of gas turbines; combined cycles: state of the art and trends; second-law analysis and future developments; generalized theory of closed cycles.

2.c. Closed gas cycles: applications; generalized theory; analysis of the recuperator; partial-load management; full-load and partial-load efficiency.

2.d. Nuclear power plants: overview of nuclear reactor; choice of nuclear source, moderating fluid and cooling fluid; choice of operational parameters for diverse technologies (water- and gas-cooled).

3. Turbomachines: stage optimization: free variable, objective function and constraints; velocity triangles and limits related to transonic and supersonic flows; effect of geometrical parameters on stage efficiency; similitude theory parameters and influence of the working fluid on the geometry.

  

Course organization

The course comprises lectures, computer lab hours (developing own codes or employing existing codes) on specific projects, numerical exercise hours, and technical visits at equipment manufacturers and/or power plants.

 

Bibliography

Recommended: M.J. Moran, H.N. Shapiro, D.D. Boettner, M.B. Bailey. Principles of Engineering Thermodynamics, 8th Edition SI Version. ISBN: 978-1-118-96088-2. John Wiley & Sons, 2015.

 

Suggested for the technology description of modern power plants: P. Kiameh. Power Generation Handbook. 2nd Edition. McGraw-Hill, 2011.

 

Moreover, printouts will be handed out during the course and specific readings will be suggested at the beginning of each topic.


Brief description of the subjects

The course covers the electricity generation in modern power plants, focusing in particular on the inherent relation among working fluids, thermodynamic cycles and plant equipment. Thermodynamic, economical, management, environmental, and strategic aspects are addressed. Despite most of the course is dedicated to large-scale fossil-fueled centralized power generation, other technologies, such as Organic Rankine Cycles (ORC) and micro-cogeneration, are presented more briefly. The goal is providing the students with the knowledge and competence to understand, design (in a simplified manner) and optimize (ideally) current and future power plants. The course addresses a variety of topics fundamentals for understanding  modern technologies: thermodynamic properties of working fluids for power cycles, second-law analysis of open and closed cycles (advanced steam cycles, gas turbines, combined cycles, closed gas cycles and nuclear plants); main components, such as heat exchangers and, in particular, turbomachines.

 

Descrizione sintetica dei contenuti del corso

Il corso si propone di illustrare criticamente le più moderne tendenze in atto nella conversione in energia elettrica delle varie fonti di energia, sottolineando in particolare la stretta relazione tra fluidi di lavoro, cicli termodinamici e apparecchiature impiantistiche. I temi sono presentati in un’ottica che consideri, oltre agli aspetti energetici, quelli economici, gestionali, ambientali e strategici. Si analizzano sia la produzione centralizzata di energia elettrica in grandi centrali alimentate da combustibili fossili e da reattori nucleari, sia altre tipologie applicative quali la micro-cogenerazione e i motori a fluido organici (noti con l’acronimi inglese ORC). Il corso tratta tematiche generali fondamentali per la comprensione delle tecnologie energetiche, quali l’analisi entropica di cicli chiusi e aperti, le proprietà termodinamiche dei fluidi di lavoro dei cicli di potenza, i componenti principali, turbomacchine e scambiatori di calore.

 


Note Sulla Modalità di valutazione

The exam comprises a written test and an oral examination. The written test covers lectures and exercises, while the oral examination covers lectures and computer labs; in particular, it is mandatory handing in at the oral examination a written report describing the solved projects.


Bibliografia
Risorsa bibliografica facoltativaM.J. Moran, H.N. Shapiro, D.D. Boettner, M.B. Bailey, Principles of Engineering Thermodynamics, 8th Edition SI Version, Editore: John Wiley & Sons, Anno edizione: 2015, ISBN: 978-1-118-96088-2
Risorsa bibliografica facoltativaP. Kiameh, Power Generation Handbook. 2nd EditionPower Generation Handbook. 2nd Edition, Editore: McGraw-Hill, Anno edizione: 2011

Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
62.0
esercitazione
20.0
laboratorio informatico
30.0
laboratorio sperimentale
0.0
progetto
0.0
laboratorio di progetto
0.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
schedaincarico v. 1.6.5 / 1.6.5
Area Servizi ICT
17/06/2021