الفهرس 
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Abstract
Induction heating is widely used in metal industry because of its good heating efficiency, high production rate, and clean working environments. The development of high-frequency power supplies provided means of using induction furnaces for melting metals in continuous casting plants. Conventional induction furnaces are usually of the coreless or channel type.
This thesis deals principally with the design of coreless induction furnaces. Both mechanical and electrical requirements for induction furnace have been presented. The mechanical aspect gives consideration to the geometrical parameters while the electrical aspect deals with the furnace power requirement to make it functional. A model for an induction furnace has been introduced. Two power supply systems using series and parallel resonant inverters to feed the core less induction furnaces have been presented. MA TLAB computer programs to simulate the complete systems for both open loop and closed loop systems have been created. To verify the design and the simulation results a comparison between simulation and actual results for both types of inverters has been done. A full investigation has been presented for both types of inverters in order to compromise between them.