| Lecturer (assistant) | |
|---|---|
| Duration | 2 SWS |
| Term | Summer semester 2025 |
| Position within curricula | See TUMonline |
Description
Introduction to the mechanisms of heat transfer
Fundamentals of heat conduction
• Fourier’s law of heat conduction
• Fourier’s differential equation
• Boundary conditions of in time and space
Steady-state heat conduction
•Simple geometries (plane wall, cylinder, spherical shell)
•Péclet equation (plane wall, cylinder, spherical shell)
• Two-dimensional steady-state heat conduction (shape factors)
Convective heat transfer and Nußelt number
• Physical phenomena of the fluid in convective heat transfer
•Correlations for the Nußelt number in configurations of interest
Free convection
• Free, laminar convection on an isothermal wall
• Boussinesq approximation of the boundary layer equations
• Characteristic numbers of free convection
• Correlations for free convection
Thermal radiation
• Black bodies
• Diffusive emitters
• Kirchhoff’s law
• Heat transfer by thermal radiation
• Spectral dependencies of thermal radiation
Heat exchanger
• Dimensionless numbers
• Characteristic of use
• Log mean temperature difference
Transient heat conduction
• Lumped capacitance method
• Dimensionless numbers of Biot and Fourier
Characteristic numbers and similitude
• Analysis of dimensions and Buckingham Pi theorem
• Design of experiments
• Representation of experimental results
• Reynold’s analogy
Fundamentals of heat conduction
• Fourier’s law of heat conduction
• Fourier’s differential equation
• Boundary conditions of in time and space
Steady-state heat conduction
•Simple geometries (plane wall, cylinder, spherical shell)
•Péclet equation (plane wall, cylinder, spherical shell)
• Two-dimensional steady-state heat conduction (shape factors)
Convective heat transfer and Nußelt number
• Physical phenomena of the fluid in convective heat transfer
•Correlations for the Nußelt number in configurations of interest
Free convection
• Free, laminar convection on an isothermal wall
• Boussinesq approximation of the boundary layer equations
• Characteristic numbers of free convection
• Correlations for free convection
Thermal radiation
• Black bodies
• Diffusive emitters
• Kirchhoff’s law
• Heat transfer by thermal radiation
• Spectral dependencies of thermal radiation
Heat exchanger
• Dimensionless numbers
• Characteristic of use
• Log mean temperature difference
Transient heat conduction
• Lumped capacitance method
• Dimensionless numbers of Biot and Fourier
Characteristic numbers and similitude
• Analysis of dimensions and Buckingham Pi theorem
• Design of experiments
• Representation of experimental results
• Reynold’s analogy
Prerequisites
Thermodynamics, fluid and structural mechanics
Teaching and learning methods
In this lecture, the course contents are taught on the basis of class lectures and presentations. Concepts and basic relationships are presented and taught in exercises based on real-world applications and calculation examples. The presentation slides of the lecture, the exercises with corresponding sample solutions and a questionnaire for independent processing are available on the TUM learning platform Moodle.
Individual issues can be discussed afterwards the lecture with the lecturer or within the assistants’ office hours (by appointment).
Individual issues can be discussed afterwards the lecture with the lecturer or within the assistants’ office hours (by appointment).