ID: 1451
Course type: theoretical and methodological
Course coordinator: Banjac J. Miloš
Lecturers: Banjac J. Miloš
Contact: Banjac J. Miloš
Level of studies: M.Sc. (graduate) Academic Studies – Mechanical Engineering
ECTS: 6
Final exam type: written+oral
Department: Department of Thermomechanics
Students should gain basic theoretical and professional knowledge and skills that will enable them to independently recognize and solve a moderately complex multidimensional stationary and transient heat transfer problems that faced by engineers of thermo-technique, thermo-energetic and processes engineering.
After successful completion of this course students should be able to: 1) describe and explain the physical essence and mechanisms and express the basic hypotheses and laws that describe the processes of heat transfer: steady and unsteady heat conduction, natural and forced heat convection with and without changing phase state (boiling and condensation) and heat radiation of gases and vapors, 2) calculate the temperature field and heat flow in solid bodies, especially rods, ribs and ribbed surfaces on the basis knowledge of the boundary and initial conditions in case of steady heat conduction 3) calculate the temperature field in simple geometric solid bodies in case of unsteady heat conduction with the change the aggregate state - the melting and solidification 4) calculate the local and average values the coefficient of heat transfer, ie. heat flux in case free and forced convective heat transfer for fluid flows across, through and around solid bodies but without changing its phase state, 5) calculate the heat flux, mass flow and thickness of the layer of condensate in case convective heat transfer during condensation of steam on the vertical and inclined solid surface, 6) calculate the heat flux, mass flow and thickness of the layer of condensate in forced flow condensation of steam on the vertical and inclined solid surface, 7) calculate the radiation heat flux from semi-transparent absorbing gases on opaque gray surfaces and the radiation heat flux from semi-transparent absorbing gases with solid particles on opaque gray surfaces.
1. Basic principles and laws of energy, momentum and mass transfer 2. Steady heat conducting - Heat transfer from extended surfaces 3. Heat transfer with phase change - processes of melting and solidification 4. Heat transfer by convection without changing the the aggregate state of the fluid; Boundary layer theory; Local and averaged values of the coefficient of heat transfer. 5. Analogies between the phenomena of transferring of substance, momentum and energy 6. Heat transfer with phase change - boiling and condensation 7. Coupled heat and mass transfer problems 8. Thermal radiation of gases and vapors. Radiation exchange between flue gases with and without solid particles and surface of solid body.
1. Радионица и дискусија посвећена општим појмовима и законитостима преношења преношења енергије и импулса 2. Рачунски примери и лабореаторијска вежба у вези с провођење топлоте кроз штапове, ребра и оребрене површи 3. Рачунски примери у вези с неустаљеним провођењем топоте са променом агрегатног стања – процеси топљења и очвршћавање 4. Рачунски примери у вези са конвективним прелажење топлоте без промене агрегатног стања флуида, теорија граничног слоја, локалне и осредњене вредности коефицијената прелажења топлоте 5. Рачунски примери у вези са прелажењем топоте при промени агрегатног стања флуида, кључању течности и кондензовању паре 7. Рачунски примери у вези са истовременим преносом топлоте и супстанције 8. Топлотно зрачење гасова и пара: Размена топлоте зрачењем између димних гасова са и без чврстих честица на површину чвстог тела.
Passed exams: Applied Thermodynamics or Thermodynamics M Desirable, passed exams: Basic heat and mass transfer
1. Handouts
Total assigned hours: 75
New material: 25
Elaboration and examples (recapitulation): 5
Auditory exercises: 30
Laboratory exercises: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Consultations: 0
Discussion/workshop: 0
Research study work: 0
Review and grading of calculation tasks: 0
Review and grading of lab reports: 0
Review and grading of seminar papers: 0
Review and grading of the project: 0
Test: 5
Test: 5
Final exam: 5
Activity during lectures: 0
Test/test: 60
Laboratory practice: 0
Calculation tasks: 0
Seminar paper: 0
Project: 0
Final exam: 40
Requirement for taking the exam (required number of points): 20
Milincic, D., Vasiljevic, B., Djordjevic, R.: Heat Transfer Problems, Faculty of Mechanical Engineering of University of Belgrade, Belgrade, 1991.; Milincic, D.: Heat transfer, Naucna knjiga, Belgrade, 1989.; Incropera, F., DeWit, D., Bergman, T, Lavine, A: Introduction to Heat Transfer, Wiley, 5th edition, 912 pages, 2006.; Cengel, Y.: Heat Transfer A Practical Approach, McGraw - Hill; 2nd edition 1024 pages, 2003.; Cengel, Y., Ghajar, A: Heat and Mass Transfer: Fundamentals and Applications + EES DVD for Heat and Mass Transfer, McGraw-Hill Science/Engineering/Math; 4 edition, 924 pages, 2010.