Abstract
We have solved the stationary heat conduction problem for a metallic conductor heated by electric current with account for the various mechanisms of heat exchange with the environment. The expressions for the conductor temperature distribution along its length with account for the heat exchange with the gas and for the temperature dependence of resistance have been found in analytical form. By means of physicomathematical modeling the temperature profiles along the length of tungsten conductors with account for the chemical reaction on their surface have been obtained. They are in good agreement with experimental results.
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