These and other questions of heat transfer by radiation are to be answered in the lecture Thermal Radiation. In addition to imparting basic knowledge, the focus is on engineering calculation methods and the industrial application of radiation sources. Basic knowledge of thermodynamics is a prerequisite for understanding the lecture.
Thermal Radiation - Interactive study plans of the TU Ilmenau
Outline and references
Outline
- Introduction - Fundamentals of heat transfer by radiation - Link to thermodynamics - Fundamental concepts
- Radiation of solid bodies - Model of the black body radiator (Planck's radiation distribution, Stefan-Boltzmann law, Wien's displacement law, band emission) - Model of the gray body radiator (real surfaces, reflection, transmission, absorption)
- Radiation exchange - Visibility factor - Radiation exchange between two surfaces - Radiation exchange in closed volumes
- Non-contact temperature measurement - pyrometers and thermal imaging cameras - functional principle - structure, types - applications, measurement errors
- Radiant heating - Basics, power ranges - Technical radiators - Applications
References
F.P. Incropera, D.P. DeWitt: Fundamentals of Heat and Mass Transfer, Wiley & Sons, New York (1996). A.F. Mills: Heat Transfer, Prentice Hall Inc, Upper Saddle River (1999). H.D. Baehr, K. Stephan: Wärme- und Stoffübertragung, Springer, Berlin (1996), (good German textbook). R. Siegel, J.R. Howell, J. Lohrengel: Wärmeübertragung durch Strahlung, Springer-Verlag, Berlin (1988). C. Kramer, A. Mühlbauer: Praxishandbuch Thermoprozesstechnik, Vulkan-Verlag, Essen (2002). VDI-Wärmeatlas, VDI-Verlag, Düsseldorf (1994).
Lectures: Tuesdays at 9:00 a.m. in Buildung M, Room 408
The first lecture will take place on October 14, 2025.
Exercises: Thursdays at 11:00 a.m. in Building M, Room 408
The first exercise will take place on October 23, 2025
Lecture/exercise: Dr. Ronald du Puits
Exam date: To be announced
