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Scheda Riassuntiva
Anno Accademico 2018/2019
Tipo incarico Dottorato
Insegnamento 099091 - ADVANCED MEASUREMENT METHODS
Docente Cozzi Fabio
Cfu 5.00 Tipo insegnamento Monodisciplinare

Corso di Dottorato Da (compreso) A (escluso) Insegnamento
MI (1372) - SCIENZE E TECNOLOGIE ENERGETICHE E NUCLEARI / ENERGY AND NUCLEAR SCIENCE AND TECHNOLOGYAZZZZ099091 - ADVANCED MEASUREMENT METHODS

Programma dettagliato e risultati di apprendimento attesi

ADVANCED MEASUREMENT METHODS (5 CFU)
The course will be offered in English and starts on March 2019 (1 day per week) and ends on May 2019
Co-ordinator: Fabio Cozzi, Department of Energy, Politecnico di Milano
Programme:
The aim of the course is to provide PhD students with general concepts and updated information on advanced experimental methods relevant to the development of conventional and nuclear power systems. The course program will cover applications related to the measurement of thermo-fluid-mechanic quantities, under both steady and unsteady regimes, with single phase or two-phase flows, turbulent and reactive conditions.
The course is divided in five modules as follows:
1. Introduction to Measurement Methods and Temperature measurement.
Error analysis of experimental data; frequency analysis, transfer function, Fourier transform (FFT). Temperature measurement: general principles; classical temperature probes (thermocouples, resistance thermometers, thermistors); static and dynamic calibrations; use in complex environment (high temperature reactive flows or high speed flows). Temperature measurement by radiative methods: principle and application of infrared thermography, optical pyrometers and noncontact techniques.
2. Measurement of thermal fields by optical techniques.
The nature of light, visible and IR spectrum, propagation of light, refractive index and Snells law of refraction. Lenses and Simple Optical Systems, Spectrometers. Diffraction, Diffraction Limited Imaging , Depth of field, magnification. Principles of Interference, Shadowgraph and Schlieren Methods. Measurements of thermal fields in transparent media by optical techniques.
3. Flow measurement by optical techniques.
Flow visualization through laser beams and laser sheets. Photodetection: photomultipliers, Cameras (CCD, MOS,..). Light sources: thermal, laser, diodes.
Quantitative flow measurements by LDV and PIV: theory and applications. Quantitative flow visualization by Background Oriented Schlieren technique
4. Flow measurement by probes.
Directional pressure probes and hot wire anemometry for steady and unsteady flow measurements.
5. Two-phase flows.
Fundamental equations and governing parameters, averaged models. Measurement of void fraction (local, multi-local, spatially-averaged), optical probes, impedance probes, problems of temperature measurement in two-phase flows, temperature measurement using combined local probe, thermocouple devices.


Note Sulla Modalità di valutazione

The students will be requested to perform at least one laboratory experience with the supervision of one of the teachers, and to prepare a report on the subject. The exam will be based on a general overview of the subjects covered during the entire course and a more detailed discussion on the report.


Intervallo di svolgimento dell'attività didattica
Data inizio
Data termine

Calendario testuale dell'attività didattica

Le date definitive di svolgimento delle lezioni verranno comunicate prima dell'inizio del corso.

The final dates of the lessons will be communicated before the course starts.

The course is divided in five modules as follows:

1. Introduction to Measurement Methods and Temperature measurement.
Error analysis of experimental data; frequency analysis, transfer function, Fourier transform (FFT). Temperature measurement: general principles; classical temperature probes (thermocouples, resistance thermometers, thermistors); static and dynamic calibrations; use in complex environment (high temperature reactive flows or high speed flows). Temperature measurement by radiative methods: principle and application of infrared thermography, optical pyrometers and noncontact techniques.
2. Measurement of thermal fields by optical techniques.
The nature of light, visible and IR spectrum, propagation of light, refractive index and Snells law of refraction. Lenses and Simple Optical Systems, Spectrometers. Diffraction, Diffraction Limited Imaging , Depth of field, magnification. Principles of Interference, Shadowgraph and Schlieren Methods. Measurements of thermal fields in transparent media by optical techniques.
3. Flow measurement by optical techniques.
Flow visualization through laser beams and laser sheets. Photodetection: photomultipliers, Cameras (CCD, MOS,..). Light sources: thermal, laser, diodes.
Quantitative flow measurements by LDV and PIV: theory and applications. Quantitative flow visualization by Background Oriented Schlieren technique
4. Flow measurement by probes.
Directional pressure probes and hot wire anemometry for steady and unsteady flow measurements.
5. Two-phase flows.
Fundamental equations and governing parameters, averaged models. Measurement of void fraction (local, multi-local, spatially-averaged), optical probes, impedance probes, problems of temperature measurement in two-phase flows, temperature measurement using combined local probe, thermocouple devices.

 


Bibliografia
Risorsa bibliografica facoltativaLecture Notes provided by each teacher https://beep.metid.polimi.it/web/8538595/attivita-online-e-avvisi
Risorsa bibliografica facoltativaErnest O. Doebelin, Strumenti e metodi di misura, Second edition, Editore: McGraw-Hill, Anno edizione: 2008, ISBN: 9788838664359
Note:

Basic textbook usefull to update personal background in Experimental Methods

Risorsa bibliografica facoltativaJack Holman, Experimental Methods for Engineers, 8th Edition, Editore: McGraw-Hill, Anno edizione: 2011, ISBN: 978-0073529301
Note:

Fundamental Textbook for Engineers


Mix Forme Didattiche
Tipo Forma Didattica Ore didattiche
lezione
30.0
esercitazione
0.0
laboratorio informatico
0.0
laboratorio sperimentale
15.0
progetto
0.0
laboratorio di progetto
0.0

Informazioni in lingua inglese a supporto dell'internazionalizzazione
Insegnamento erogato in lingua Inglese
Disponibilità di materiale didattico/slides in lingua inglese
Disponibilità di libri di testo/bibliografia in lingua inglese
Possibilità di sostenere l'esame in lingua inglese
Disponibilità di supporto didattico in lingua inglese

Note Docente
schedaincarico v. 1.6.1 / 1.6.1
Area Servizi ICT
04/04/2020