Degree course  Electronic Engineering 
Curriculum  Curriculum unico 
Learnings  Orientamento unico 
Academic Year  2018/2019 
ECTS  6 
Scientific Disciplinary Sector  INGIND/11 
Year  First year 
Time unit  Second semester 
Class hours  48 
Educational activity  Related and integrative training activities 
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 – Monodimensional 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  onedimensional steadystate conduction with heat generation  twodimensional and threedimensional steadystate conduction CONVECTION: forced, natural and mixed convection  Nusselt, Prandtl and Grashof numbers  Fundamental equations of nonisothermal flux  Dimensional analysis. RADIATION: Thermal radiation  Fundamental parameters: monochromatic, angular and integral emissive power – Radiation laws: Lambert, Planck, Wien, StefanBoltzmann 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 – Monodimensional 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  onedimensional steadystate conduction with heat generation  twodimensional and threedimensional steadystate conduction CONVECTION: forced, natural and mixed convection  Nusselt, Prandtl and Grashof numbers  Fundamental equations of nonisothermal flux  Dimensional analysis. RADIATION: Thermal radiation  Fundamental parameters: monochromatic, angular and integral emissive power – Radiation laws: Lambert, Planck, Wien, StefanBoltzmann 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 
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 
