Last modified: 30/01/2002
Heat transfer by means of conductivity is caused by local temperature differences in a material. Kinetic energy is transfered due to collisions between atoms. The heat flow q'' [W / m2] from higher to a lower temperature is, according to Fourier's law, dependent on the temperature difference or temperature gradient and the thermal conductivity k in [W/m K]:
In a cylindrical system this becomes a one - dimensional relation. If the radial temperature profile in the steady state is measured one is able to determine the thermal conductivity of the conducting material.
Gain knowledge about the basics of heat transfer through conduction Build a simple set up for measurement of temperature profiles Interpret measured data correctly to establish temperature profiles and estimate the thermal conductivity
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vrije Universiteit amsterdam