411-305 Heat Transfer

Credit Points

Coordinator

Prerequisites

421-205 Mathematics for Engineers 2.2, 411-205 Fluid Mechanics 1 and 411-302 Transport Phenomena 2

Corequisites

None

Semester

Contact

Subject Description

The objective of this unit is to present an elementary treatment of the principles of heat transfer and their application in chemical engineering. The topics covered include:

• Convection;
• Radiation;
• Conduction.

Fourier Law of heat conduction. Steady-state heat conduction and the Laplace equation. Some commonly encountered boundary conditions. Steady-state conduction with distributed heat source and the Poisson equation. Simplified equation for steady-state heat conduction. Transient heat conduction and the diffusion equation. Initial condition. Examples of simple solution of transient heat conduction. Fourier modulus and thermal diffusivity. Heisler charts for spheres, cylinders and sheets. Lumped capacitance method and the Biot number. Melting, solidification and Stefan boundary condition. Brief introduction to numerical methods for heat conduction problems.

Assessment

One examination not exceeding three-hours at the end of semester two