The course is logically divided in two parts: one is more related to the development of a hands-on attitude for some nuclear-relevant measurements; the second is more theoretical, and related to the problem of removing high heat fluxes from nuclear components.

The students are expected to become aware of techniques and issues in the experiments that concern single phase and two phase pressure drop and heat transfer, and the characterization of materials in nuclear environment, relevant for fission and fusion applications. Furthermore, the acquisition of critical capability to model components or systems characterized by the need for removal of high heat fluxes is expected.

Knowledge of thermo-dynamics, single-phase thermal-fluid dynamics, advanced materials for nuclear applications, basic knowledge of operating principles of fission and fusion nuclear reactors. Basic knowledge of programming (in MATLAB) is welcome.

1. Fundamentals of measurement instruments and signal analysis (17h lectures + 3h lab) a. International System of Measurements (SI) b. Measurement Methods and Experimental Errors c. System Dynamic Models (zero, first and second order) and Fourier analysis d. Basic Electrical Principles (Electrical Components, Bode Plot, Bridges, Amplifiers, Analogical and Numerical Filters) 2. Hydraulic characteristics for components in incompressible and compressible flows: mass and momentum conservation equations in single-phase and two-phase flow. (9h lectures + 6h lab) 3. Thermal-Hydraulic characteristics for components in single-phase flow: enhanced heat transfer in turbulence promoters, finned surfaces, porous media, ... Applications to devices of interest in nuclear applications (10.5h lectures + 9h lab) 4. Thermal-Hydraulic characteristics for components in two-phase flow: the modeling of boiling, condensation and critical heat flux (12h lectures + 4.5h lab) 5. Problems of heat transfer for superconducting materials at cryogenic temperatures and measurements (4.5h lectures + 4.5h lab)

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The course will be organized in room lectures and hands-on experimental and computational lab sessions.

Notes by the teachers. In addition: • Boiling, condensation and gas- liquid flow, P.B. Whalley, Clarendon, Oxford, 1987 • Convective boiling and condensation, John G. Collier, John R. Thome, 3rd ed., Clarendon, Oxford, 1996

Modalità di esame: Prova orale obbligatoria; Progetto individuale;

Exam: Compulsory oral exam; Individual project;

... For the individual project: the teachers will evaluate the methodology used to develop the project, its originality and feasibility. The project max score is 24/30. The compulsory oral exam, based on open questions on the course topics, will allow students to round their score to the maximum.

Gli studenti e le studentesse con disabilità o con Disturbi Specifici di Apprendimento (DSA), oltre alla segnalazione tramite procedura informatizzata, sono invitati a comunicare anche direttamente al/la docente titolare dell'insegnamento, con un preavviso non inferiore ad una settimana dall'avvio della sessione d'esame, gli strumenti compensativi concordati con l'Unità Special Needs, al fine di permettere al/la docente la declinazione più idonea in riferimento alla specifica tipologia di esame.