ABSTRACT

This project details the process of heating an electrically produced heat by electromagnetic induction, through heat generated in the object by eddy currents. An induction heater consists of an electromagnet, and an electronic oscillatorthat passes a high-frequency alternating current (AC) through the electromagnet. The rapidly alternating magnetic field penetrates the object, generating electric currents inside the conductor called eddy currents. The eddy currents flowing through the resistance of the material heat it by Joule heating. An important feature of the induction heating process is that the heat is generated inside the object itself, instead of by an external heat source via heat conduction. The results we obtained, shows ifwe apply a continuously changing current to a coil of wire, we have a continuously changing magnetic field within it. We therefore conclude that the working - principle ofthe induction heating process is a combined recipe of electromagnetic induction and joule heating