Learning outcomes of the course unit
The course aims to provide the basic notions for the energy analysis of systems, both through the study of the conversion processes between the different forms of energy (thermal, mechanical), and by providing the fundamental elements on the mechanisms of heat exchange and fluid dynamics.
Knowledge and understanding:
At the end of the educational path, the student will have acquired basic knowledge in the field of thermodynamics, fluid dynamics and heat transfer. With regard to the themes of thermodynamics and heat transfer, he will also be able to outline some simple problems of practical interest, highlighting the relevant physical phenomena.
The student will be able to perform the energy and thermal analysis of simple problems, after schematizing the system and its interactions with the boundary.
Autonomy of judgment:
At the end of the learning process, the student will have acquired tools to critically interpret energy conversion and heat transfer phenomena.
The student must have the ability to outline the problem, presenting the details of the physical phenomenon and the results of the analysis carried out in a clear manner and with command of language.
To successfully follow the course, it is necessary to have acquired the basic notions of mathematical analysis. The skills acquired in the basic courses of physics and chemistry are also useful for understanding
To successfully follow the course, it is necessary to have acquired the basic notions of mathematical analysis. The skills acquired in the basic courses of physics and chemistry are also useful for understanding.
Course contents summary
The course includes the following main topics: thermodynamics, fluid dynamics, heat transfer.
For each topic, the fundamental definitions are first presented, then the physical laws underlying the phenomena considered. With regard to thermodynamics, the fundamental principles are presented and discussed in detail, with their related corollaries. The study of thermodynamics is then extended to the description of fluid systems (gases and liquids) and gas mixtures (mixtures of air and water vapor).
The study of the fluid dynamics is limited to what is necessary for the study of the transmission of heat by convection; however, some problems relating to the motion of compressible fluids are analyzed.
As part of the third topic, the different modes of heat transfer are dealt with in detail: conduction, convection, radiation. Finally, what has been learned is applied to the resolution of some heat exchange problems that are particularly significant for the mechanical engineer. During the course, some simple problems of thermodynamics and heat transmission are presented and discussed, with the aim of facilitating the assimilation of the theoretical concepts presented.
M.J. Moran, H.N. Shapiro, B.R. Munson, D.P. DeWitt, “Elementi di Fisica tecnica per l’ingegneria”, McGraw-Hill
Y. A. Çengel, “Termodinamica e trasmissione del calore”, McGraw-Hill.
Both the theoretical framework of the topics and the development of application examples will be carried out in the classroom, on the blackboard.
Assessment methods and criteria
Verification of learning is based on an oral test preceded by a written test in which two simple problems are proposed, one of thermodynamics and one of heat transfer. The correct resolution of the proposed exercises constitutes a constraint for admission to the oral exam, in which the correct and complete answer to theory questions are verified.
During the test it is not possible to consult texts or lecture notes.
The results of the written test is communicated immediately after the correction of the papers, usually within three days, by means of a communication sent by e-mail to the students enrolled in the exam; the final grade is communicated immediately at the end of the oral exam before its eventual registration.
Honors are awarded in the case of achieving the maximum score to which is added the mastery of the disciplinary vocabulary.
During the teaching period, two intermediate tests will be held (the first at the end of October and the second in December) which, if passed, will allow direct access to the oral exam in the next exam session (January).