| Lectures and exercises |
hours |
| Topics |
Specific contents |
|
| Heat transfer modes. |
Conduction, convection and radiation. Thermal conductivity. Insulating materials. |
6
|
| Conduction rate equations. |
Governing equations for steady-state and transient conduction in two-dimensional geometries. Boundary and initial conditions. |
3
|
| Steady-state conduction. |
Electrical analogy. One-dimensional plane and cylindrical geometries. Extended surfaces. Thermal energy generation. Shape factors. |
9
|
| Transient conduction. |
The lumped capacity model. One-dimensional plane and radial systems with convection. The semi-infinite solid with constant and time-periodic surface temperatures. Multidimensional geometries. |
6
|
| Forced convection in external flows. |
Continuity, momentum and energy equations for forced convection in laminar boundary layers. Similarity parameters: Nusselt, Reynolds and Prandtl numbers. The effects of turbulence. Determination of convection coefficients for non-recirculating and recirculating external flows. |
8
|
| Forced convection in internal flows. |
Velocity and temperature distributions in tubes and ducts. Determination of convection coefficients for internal flows in tubes and channels. |
4
|
| Free convection. |
Governing equations for laminar free convection from a vertical plate. Similarity considerations: Grashof and Rayleigh numbers. Determination of convection coefficients. |
4
|
| Heat exchangers. |
Heat exchangers types, energy balances and temperature behaviours. Log-mean temperature difference and correction factors for multipass and cross-flow exchangers. Effectiveness. |
4
|
| Radiation. |
Intensity, emissive power, irradiation and radiosity. Blackbody radiation. Characterization of real surfaces. |
3
|
| Radiation exchange. |
View factors. Radiation exchange between black surfaces and between gray surfaces in an enclosure. Electrical analogy. |
3
|
| Total hours for lectures and exercises |
50 |
| for exercises only |
8 |
|
Further educational activities
|
hours
|
| Labs |
|
| Tutorials / Seminars |
|
| Workshops |
|
| Guided tours |
|
| |
|
| Total hours for further educational activities |
0 |
| Total hours |
50
|