Using the heating elements
Materials for electrical resistors
Article REF: D2620 V1
Using the heating elements
Materials for electrical resistors

Author : Gilles GREFFIER

Publication date: March 10, 1996 | Lire en français

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1. Using the heating elements

Understanding the radiative transfers between a heating element and the walls of a furnace, or the load processed in a furnace, is essential to establish the link between the thermal power dissipated and the temperature of the element. After all, it's the temperature of the resistor that determines its service life, and not, as is usually said, the surface power dissipated.

1.1 Heat transfer

A heating element or resistor is a conductor in which electrical power is transformed into heat by the Joule effect, according to the equation :

P = R I 2 = U 2 /R

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