APPLIED PHYSICS A
Academic year and teacher
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- Versione italiana
- Academic year
- 2022/2023
- Teacher
- PATRIZIO FAUSTI
- Credits
- 6
- Didactic period
- Secondo Semestre
- SSD
- ING-IND/11
Training objectives
- The course aims to provide knowledge of the basic principles of thermodynamics, heat transfer and thermo-physics of buildings. Learning of these physical principles will enable the student to understand the complex phenomena of energy interaction between different systems with particular reference to buildings and living environments as well as having a vision of professional applications in the field of energy saving in the same areas.
Prerequisites
- Knowledge of Calculus and Physics
Course programme
- THERMODINAMICS - Definitions. First law. Reversible and irreversible processes: second law. Open systems. Single-component systems: liquid, solids, ideal gases. State equations. Thermodynamic diagrams for pure substances. Gas and vapor power systems. Refrigeration cycles. Multicomponent ideal gas: moist air. Use of psychrometric chart.
HEAT TRANSFER: Fundamentals of heat transfer. Balance equations. Thermophysical properties. Conduction: Fourier equation. Forced, free and mixed convection in single phase systems. The nondimensional groups of heat convection. Radiation: the fundamental laws of thermal radiation. Radiative exchange: black and grey surfaces. View’s factors.
THERMOPHISICS of the BUILDING: Umidity in structures and Glaser Diagram. Didactic methods
- The module "Technical physics A" (Prof. P. Fausti) is integrated with the module "Technical physics B" (Prof. N. Prodi). The lessons held by the teachers of the two modules are integrated to constitute the 12 CFU course called "Technical physics".
In the academic years up to 2018-2019, the course took place in the classroom, through lectures and numerical exercises aimed at solving specific problems of thermodynamics, heat transfer and thermophysics of buildings.
In the academic years 2019-20 and 2020-21, the course took place entirely in e-learning mode, with video lessons and exercises.
In the present academic year 2021-2022, on the basis of the current security rules for the COVID emergency, the lessons will be held partly in mixed mode (in person and streaming). Some lessons or exercises can only be carried out in e-learning mode but with support in the classroom and will mainly consist of video-lessons and exercises in live streaming. Learning assessment procedures
- The exam consists in a written assignment and in an oral talk that are scheduled together with those of the course “Technical Physics” (Prof. N. Prodi).
The written assignment lasts 3h and consists in the solution of three simple exercises. The first one is about thermodynamics, the second is on heat exchange and the third one is either on applied acoustics or on lighting techniques. The numerical data in the exercises are personalized to the candidates by referring to some of the student matriculation numbers. To solve the proposed exercises it is possible to use table, books, notes etc, except internet connections or mobile phones.
To access the successive oral talk (usually scheduled after 7 – 10 days) it is mandatory to equal or surpass the minimal score of 15/30. For scores from 15/30 to 17/30 the access is considered “with a reservation” in the sense that at the oral talk the candidate will be asked to draft the solution of a problem, whereas for marks equal or higher than 18/30 the admission is “without reservation”. The validity of the mark in the written assignment is 12 months from the date of the exam.
The oral talk consists in questions related to the theory, with a minimum of three, or in the drafting and discussion of typical exercises whose topics cover all of the program developed in the frontal lessons. The final mark is assigned after the accurate evaluation of candidate’s preparation in both the written and the oral parts of the exam. Since the Course in integrated with “Technical Physics” (Prof. N. Prodi) the same final mark is registered for both parts.
In addition to the classic methods of carrying out the exams, during the lesson period, partial verification tests will also be carried out at the end of each cycle of lessons. In particular, the partial tests are dedicated to three different groups of topics: the first of "Thermodynamics", the second of "Heat transfer and thermophysics of the building", the third of "Applied Acoustics and Lighting Technology". The partial tests are scheduled well in advance, are performed within the normal lesson schedule and therefore have a duration of 2h and 30 '. Partial tests can replace the written summary proposed within the exam sessions. In this case, the average marks obtained in the partial tests give access to the oral test according to the criteria set out above. The incomplete result of one or more partial tests or the insufficiency of the average mark of the three tests can only be improved by using the written exams of June and July. After the summer session, the incomplete partial tests expire and can no longer be used, although access to the oral exam remains guaranteed with the grade already acquired. In the academic year 2021-22, the partial tests will be carried out in the presence.
In order to facilitate the participation of students in the partial tests, new written test methods are being studied consisting of a part of theoretical multiple choice questions and a part with closed-ended exercises. Google modules or Classroom or any other platforms may be used as a platform for these new verification methods.
As a further option, exclusively for those who carry out the partial tests obtaining an average mark greater than or equal to 18/30, there is the possibility of confirming the grade of the written exam. Reference texts
- 1) Notes of the teachers.
Book for supplementary material on theory:
2) A. Cocchi, Elementi di fisica tecnica ambientale, ed. Progetto Leonardo.
Books for supplementary material on both theory and exercises
3) Y. A. Gengel, G. Dall’ò, L. Sarto, Fisica Tecnica Ambientale, McGraw-Hill
4) Y. A. Gengel, Termodinamica e trasmissione del calore, McGraw-Hill.
5) G. Cesini, G. Latini, F. Polonara, FISICA TECNICA, Seconda edizione, CittàStudi Edizioni
