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A basic knowledge of thermodynamics and heat transfer.
The short course aims to provide the basic knowledge on fluid machines now widely used in industry. With particular reference to their use and role in energy conversion plants.
The short course provides the necessary basic knowledge for understanding the operation of the most common fluid machines. At the end of the course the student will also be able to correctly set the choice of the machine according to the plant and industrial context.
(1) The role of fluid machines in the industry. (2) Classification of fluid machines. The operating principles of volumetric machines and "dynamic" machines. (3) Review on the properties of fluids: compressibility, thermal properties. (4) The main thermodynamic transformations typical of the usual fluid machines. (5) The characteristic curves and the regulation of the turbo-machines. Examples: centrifugal pumps, hydraulic turbines. (6) Heat exchangers: types, the NTU method. Design and off-design operational conditions. Examples. (7) The role of machines in energy conversion systems. Thermal engines. (8) The main design parameters of a turbo-machine. Example: axial turbine stage. (9) Renewable energies (introductory notes).
The teacher, from time to time, will indicate and provide the necessary teaching material. However, as a general text, it should be recommended the following book: R.Della Volpe, Macchine, Liguori Editore, Napoli, 2011.
The lectures will be held in the classroom using material made available from time to time. The lectures will always be accompanied by numerical applications. Students will always be directly involved in solving significant problems, directly in the classroom.
Learning will take place through the direct involvement of students in solving simple problems during the lessons. At the end of the course the student will take (1) a written exam - solution of simple exercises; (2) an oral exam.