CODE 66382 ACADEMIC YEAR 2024/2025 CREDITS 6 cfu anno 1 ENERGY ENGINEERING 10170 (LM-30) - SAVONA SCIENTIFIC DISCIPLINARY SECTOR ING-IND/10 LANGUAGE English TEACHING LOCATION SAVONA SEMESTER 1° Semester TEACHING MATERIALS AULAWEB OVERVIEW The course deals with one of the fundamental aspects of the energy engineering, introducing the different methods of heat transfer through theoretical lessons and numerical exercises. AIMS AND CONTENT LEARNING OUTCOMES The course introduces the fundamental mechanisms of heat transfer (conduction, convection and thermal radiation) and shows some examples of practical application. The student will demonstrate a deep knowledge of the different heat transfer mechanisms and to be able to apply the fundamental laws to simple engineering problems. The goal of this course is to provide to the student the basis for the thermal analysis of energy transformation and production processes. AIMS AND LEARNING OUTCOMES At the end of course the student is expected to be able to: understand engineering problems related to the heat transfer; apply basic laws and models to the solution of simple heat transfer problems. TEACHING METHODS Lectures SYLLABUS/CONTENT HEAT CONDUCTION: General heat conduction equation; boundary and initial conditions; the thermal resistance approach; critical radius of insulation; heat transfer from finned surfaces; lumped system analysis; transient heat conduction in semi-infinite solids; finite difference formulation of differential equations in heat conduction. HEAT CONVECTION: Fundamentals and preliminary analysis; conservation of mass equation; conservation of momentum equations: newtonian fluids and Navier-Stokes equations; conservation of energy equation; dimensionless forced convection equations and similarity; analogies between momentum and heat transfer; turbulence; Blasius solutions of convection equations for a flat plate; forced convection in tubes; natural convection: Boussinesq assumption; dimensionless natural convection equations. THERMAL RADIATION: Fundamentals; blackbody and gray surfaces radiation; radiation heat transfer: black surfaces and diffuse, gray surfaces. HEAT EXCHANGERS: Classification; the log mean temperature difference method; the effectiveness–NTU method. TWO-PHASE HEAT TRANSFER: Fundamentals of pool and flow boiling; Nusselt equation for condensation. This unit contributes to the achievement of the following Sustainable Development Goals of the UN 2030 Agenda: 4. Quality Education, 7. Clean and Affordable Energy, 9. Enterprise, innovation and infrastructure, 11. Sustainable cities and communities, 13. Fighting climate change. RECOMMENDED READING/BIBLIOGRAPHY Y. Cengel. Heat and Mass Transfer, Ed. McGrawHill, 2015. Incropera, DeWitt, Bergman, Lavine: Fundamentals of Heat and Mass Transfer, John Wiley and Sons, 2011 A.Bejan, Heat Transfer, John Wiley and Sons, Inc, 1993 TEACHERS AND EXAM BOARD ANTONELLA PRIARONE Ricevimento: Available on demand through email request Exam Board ANTONELLA PRIARONE (President) ANNALISA MARCHITTO MARCO FOSSA (President Substitute) LESSONS LESSONS START https://corsi.unige.it/en/corsi/10170 Class schedule The timetable for this course is available here: Portale EasyAcademy EXAMS EXAM DESCRIPTION Oral examination ASSESSMENT METHODS The oral examination in based on a specific topic among those presented during the course, with in addition a couple of short questions on other one/two subjects. The aim of the examination is to assess the student knowledge and the skill in reasoning and subject presentation. Students who have valid certification of physical or learning disabilities on file with the University and who wish to discuss possible accommodations or other circumstances regarding lectures, coursework and exams, should speak both with the instructor and with Professor Federico Scarpa (federico.scarpa@unige.it ), the Polytechnic School's disability liaison. Exam schedule Data appello Orario Luogo Degree type Note 16/01/2025 10:00 SAVONA Orale 31/01/2025 10:00 SAVONA Orale 14/02/2025 09:30 SAVONA Orale 06/06/2025 10:00 SAVONA Orale 10/07/2025 10:00 SAVONA Orale 03/09/2025 10:00 SAVONA Orale 17/09/2025 10:00 SAVONA Orale Agenda 2030 - Sustainable Development Goals Quality education Affordable and clean energy Industry, innovation and infrastructure Sustainable cities and communities Climate action