B8605 - FONDAMENTI DI ENERGETICA T

Learning outcomes

The course aims to provide students with the fundamental concepts of applied thermodynamics, heat transfer, and energetics. By the end of the course, students will be able to understand and address problems related to the energy transition, transformations of thermodynamic systems, and energy exchange mechanisms, with particular attention to issues concerning energy management in various fields of engineering.

Course contents

The nature of thermodynamics: temperature and heat - Applications of thermodynamics to the closed system - The first law of the thermodynamics: work, internal energy and energy balances - The second law of thermodynamics and formulation of entropy - The open system: conservation of mass and balance of mechanic energy - Macroscopic properties of pure substances: (p,v,T) surface and (p,v) diagram - Ideal gases and equation of state - (T,s) Diagram - Conventional thermodynamic cycles: Rankine cycle, refrigeration cycles and heat pump.

Thermal conduction: Fourier's law - Fourier's equation - Simple cases of steady state conduction in cartesian and cylindrical coordinates - Thermal resistance and electrical analogy: thermal resistances networks. - Thermal convection - The Newton's law - Heat transfer coefficient and Nusselt number - Thermal radiation - Overall heat transfer coefficient.

Renewable energy sources : solar energy, heat pump, geothermic, biomass and aeolian energy.

Readings/Bibliography

The handwritten notes taken during the lessons and the material given by the teacher are enough to prepare for the exam. In order to achieve a deeper knowledge of some topics or for self-study, the following books are suggested:

- Moran, Shapiro, Munson, DeWitt, Elementi di Fisica tecnica per l'ingegneria, Edizione italiana a cura di Mauro A. Corticelli, McGraw-Hill;

- Y.A. Çengel, Termodinamica e trasmissione del calore - Quarta edizione, McGraw-Hill;

- G. Evola, L Marletta, G. Piccione, Esercizi di Fisica Tecnica risolti con PTC MathCad Termodinamica e Termocinetica, Città Studi Edizioni;

- G. Moncada Lo Giudice, L. De Santoli, Progettazione di impianti tecnici - Problemi ed applicazioni - Seconda edizione, Casa Editrice Ambrosiana;

- M. D. d'Accadia, Applicazioni di energetica. Introduzione all'analisi tecnico-economica di sistemi per il risparmio energetico, Liguori.

- Applicazioni di termofisica dell'edificio e climatizzazione / Vincenzo Corrado, Enrico Fabrizio. - 2. ed. - Torino : CLUT, 2009.

Teaching methods

Classroom lessons and guided solution of exercises

Assessment methods

The final exam consists of a written test and an oral part, dealing with the notions presented during the course. The written session usually consists of 3 numerical questions. In order to be eligible to take the oral exam, the student must score in the written test a minimum total of 18/30 points. The oral session consists of a technical conversation aimed at evaluating the organic understanding of the subject with reference to the key concepts illustrated during the course.

The achievement by the student of a complete knowledge of the course content and of its application to the solution of engineering problems, along with the use of the specific technical language, are assessed with marks of excellence. The mnemonic knowledge of the matter, with limited synthesis and analysis capabilities, and difficulties in the application to case studies lead to discrete evaluations. Learning gaps, inability to apply and / or inappropriate language justify negative assessments or low marks.

n accordance with the University Code of Ethics (Codice Etico di Ateneo), students’ attention is drawn to the obligation to adopt conduct based on the highest standards of integrity.
Any activity that may compromise the proper conduct of examinations is prohibited, including but not limited to:

• cheating and plagiarism;
• access to online learning resources;
• use of artificial intelligence tools not expressly authorized;
• use or possession of unauthorized materials or equipment.

It is specified that the mere possession of unauthorized tools or materials during the conduct of any examination results in the immediate invalidation of the submitted work and notification to the competent offices.

Any conduct in violation of the above provisions may result in disciplinary proceedings and, where criminal relevance applies, reports to the competent authorities, with the consequent risk of criminal proceedings being initiated against the students involved.

Teaching tools

Blackboard and projector.

Office hours

See the website of Paolo Valdiserri