STEADY PERIODIC HEAT-TRANSFER IN A FLAT-PLATE CONDUCTOR CARRYING AN ALTERNATING ELECTRIC-CURRENT

The heat transfer within a flat plate electric conductor crossed by an alternating electric current is analysed. The power generated per uni t volume within the conductor is determined by taking into account the skin effect An analytic expression of the dimensionless temperature d istribution within the plate in steady periodic regime is obtained. It is shown that, as the frequency of the electric current increases, th e amplitude of the temperature oscillations tends to zero very rapidly and the time averaged temperature distribution tends to become unifor m.