- Docente: Cesare Biserni
- Credits: 9
- SSD: ING-IND/10
- Language: Italian
- Moduli: Cesare Biserni (Modulo 1) Paolo Valdiserri (Modulo 2)
- Teaching Mode: Traditional lectures (Modulo 1) Traditional lectures (Modulo 2)
- Campus: Bologna
- Corso: First cycle degree programme (L) in Engineering Management (cod. 0925)
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 -The loss term and Moody Diagram - Macroscopic properties of pure substances: (p,v,T) surface and (p,v) diagram - Ideal gases and equation of state - (T,s) Diagram - Air and water vapour mixtures: psychrometrics - 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 – Steady state conduction with internal heat generation in cartesian and cylindrical coordinates -Thermal convection - The Newton's law - Heat transfer coefficient and Nusselt number - Dimensionless equations, Buckingam Theorem and relationships Nu = Nu (Re, Gr, Pr) - Heat Exchangers with reference to the "shell and tube" elemental configuration -Overall heat transfer coefficient - The log meantemperature difference method andthe ε - NTU method: numerical applications.
Energy performance of buildings: Heating equipment, heating and cooling systems and applications -Load calculations and energy requirements: weather information, thermal insulation and moisture retarders, fenestration, building envelope systems. 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:
- Y.A. Çengel, Termodinamica e trasmissione del calore - Seconda edizione, McGraw-Hill;
- M.J. Moran, H.N. Shapiro, B.R. Munson, D.P. DeWitt, Elementi di Fisica Tecnica per l'Ingegneria, McGraw-Hill;
- A. Cocchi, Elementi di termofisica generale ed applicata, Esculapio;
- AA.VV., Manuale di progettazione edilizia - Volume secondo - Criteri ambientali e impianti, Hoepli Editore;
- 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.
Assessment methods
The final exam consists of a written test and an oral part, dealing with the notions presented during the course.
Teaching tools
Blackboard, transparencies and projector.
Links to further information
http://www.dienca.unibo.it/DIENCA/Dipartimento/Personale/docenti.htm
Office hours
See the website of Cesare Biserni
See the website of Paolo Valdiserri