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Technical Physics for Electronics

Degree course Electronic Engineering
Curriculum Curriculum unico
Learnings Orientamento unico
Academic Year 2018/2019
ECTS 6
Scientific Disciplinary Sector ING-IND/11
Year First year
Time unit Second semester
Class hours 48
Educational activity Related and integrative training activities

Single group

Professor ANTONINO FRANCESCO NUCARA
Objectives Aim of the course is to provide the students with basic knowledge regarding heat transfer, in steady state and transient regime, in order to improve their competence on the topic of cooling of the electronic and photovoltaic systems.
Programme HEAT TRANSFER IN STEADY STATE REGIME
CONDUCTION: Fourier's law - General heat conduction equation – Steady state conduction – Mono-dimensional stationary conduction without heat sources: plane, cylindrical and spherical walls with constant or varying with temperature thermal conductivity – Composite plane, cylindrical and spherical walls with constant thermal conductivity – Electrical analogy - Global heat transfer coefficient for plane and cylindrical geometries - Critical insulation thickness - one-dimensional steady-state conduction with heat generation - two-dimensional and three-dimensional steady-state conduction
CONVECTION: forced, natural and mixed convection - Nusselt, Prandtl and Grashof numbers - Fundamental equations of non-isothermal flux - Dimensional analysis.
RADIATION: Thermal radiation - Fundamental parameters: monochromatic, angular and integral emissive power – Radiation laws: Lambert, Planck, Wien, Stefan-Boltzmann laws – Reflection, transmission, and absorption coefficients - Blacks bodies - Grey and real bodies – Emissivity - Kirchoff's law - Radiance – View factors – View factors properties: reciprocity, sum and closure - Heat exchange between black surfaces - Heat exchange between grey surfaces.

HEAT TRANSFER IN TRANSIENT REGIME
systems with internal resistance negligible - Thermal Conduction in variable regime in plane, cylindrical and spherical surfaces - Numerical methods of resolution of transient heat transfer problems - Finite difference method: explicit and implicit formulations.

COOLING OF ELECTRONIC EQUIPMENT
Heat load in electronic equipment - Cooling of electronic equipment and LED - Cooling by conduction - Air cooling (in natural convection and radiation; in forced convection) - Liquid cooling - Cooling immersion - Cooling systems - Fins and cooling plates - Fans - Systems for detection of the surface temperature (Infrared thermography).

COOLING OF SOLAR SYSTEMS
Solar energy - Use of solar energy to produce electricity and thermal energy - Cooling of photovoltaic systems using heat exchangers - Photovoltaic/Thermal systems (PV/T systems) - Electric power and thermal power - Efficiency - Method of the logarithmic mean temperature difference - Method of the efficiency - Energy storage systems.
Books Course notes and slides
Frank Kreith, Raj M. Manglik, Mark S. Bohn - Principles of Heat Transfer - Cencage Learning
Yunus A. Cengel - Introduction to Thermodynamics and Heat Transfer - Content Technologies, Inc. and Cram101 Publishing
Traditional teaching method Yes
Distance teaching method No
Mandatory attendance No
Written examination evaluation No
Oral examination evaluation Yes
Aptitude test evaluation No
Project evaluation No
Internship evaluation No
Evaluation in itinere No
Practice Test No
Professor MATILDE PIETRAFESA
Objectives Aim of the course is to provide the students with basic knowledge regarding heat transfer, in steady state and transient regime, in order to improve their competence on the topic of cooling of the electronic and photovoltaic systems.
Programme HEAT TRANSFER IN STEADY STATE REGIME
CONDUCTION: Fourier's law - General heat conduction equation – Steady state conduction – Mono-dimensional stationary conduction without heat sources: plane, cylindrical and spherical walls with constant or varying with temperature thermal conductivity – Composite plane, cylindrical and spherical walls with constant thermal conductivity – Electrical analogy - Global heat transfer coefficient for plane and cylindrical geometries - Critical insulation thickness - one-dimensional steady-state conduction with heat generation - two-dimensional and three-dimensional steady-state conduction
CONVECTION: forced, natural and mixed convection - Nusselt, Prandtl and Grashof numbers - Fundamental equations of non-isothermal flux - Dimensional analysis.
RADIATION: Thermal radiation - Fundamental parameters: monochromatic, angular and integral emissive power – Radiation laws: Lambert, Planck, Wien, Stefan-Boltzmann laws – Reflection, transmission, and absorption coefficients - Blacks bodies - Grey and real bodies – Emissivity - Kirchoff's law - Radiance – View factors – View factors properties: reciprocity, sum and closure - Heat exchange between black surfaces - Heat exchange between grey surfaces.

HEAT TRANSFER IN TRANSIENT REGIME
systems with internal resistance negligible - Thermal Conduction in variable regime in plane, cylindrical and spherical surfaces - Numerical methods of resolution of transient heat transfer problems - Finite difference method: explicit and implicit formulations.

COOLING OF ELECTRONIC EQUIPMENT
Heat load in electronic equipment - Cooling of electronic equipment and LED - Cooling by conduction - Air cooling (in natural convection and radiation; in forced convection) - Liquid cooling - Cooling immersion - Cooling systems - Fins and cooling plates - Fans - Systems for detection of the surface temperature (Infrared thermography).

COOLING OF SOLAR SYSTEMS
Solar energy - Use of solar energy to produce electricity and thermal energy - Cooling of photovoltaic systems using heat exchangers - Photovoltaic/Thermal systems (PV/T systems) - Electric power and thermal power - Efficiency - Method of the logarithmic mean temperature difference - Method of the efficiency - Energy storage systems.
Books Frank Kreith, Raj M. Manglik, Mark S. Bohn - Principles of Heat Transfer - Cencage Learning
Yunus A. Cengel - Introduction to Thermodynamics and Heat Transfer - Content Technologies, Inc. and Cram101 Publishing
G. Cesini, G. Latini, F. Polonara - Fisica Tecnica - Città Studi Edizioni.
G. Guglielimini, C. Pisoni – Elementi di trasmissione del calore – Ed. Veschi

Traditional teaching method Yes
Distance teaching method No
Mandatory attendance No
Written examination evaluation No
Oral examination evaluation Yes
Aptitude test evaluation No
Project evaluation No
Internship evaluation No
Evaluation in itinere No
Practice Test No

Further information


Documents uploaded by Antonino Francesco Nucara

Description Document
DISPENSE (dispensa) Document

Office hours list:

Description News
Office hours by: Matilde Mariarosa Consolata Pietrafesa
Tutti i pomeriggi alle 15,30, previa conferma la mattina
Office hours by: Antonino Francesco Nucara
Il ricevimento si terrà il Lunedì ed il Giovedì dalle 11:00 alle 13:00 presso il Laboratorio di Energia ed Ambiente, previa richiesta di appuntamento via mail all'indirizzo antonino.nucara@unirc.it
No news posted
No class timetable posted
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