Authors : Rabah Diabi , Abdallah Moussaoui and Ali Belhamra
Abstract: This study illustrates the use and advantages of dielectric heating. The essential advantage of dielectric heating resides in the generation of heat within the material to be heated. In comparison with more conventional heating techniques (hot air, infrared) in which the material is heated via the outer surface, dielectric heating is much more rapid. This is because electrically insulating materials, i.e., the domain of dielectric heating, are mostly also poor conductors of heat. Other interesting characteristics of radio frequency and microwave heating are the high power density and the possibility of selective heating of materials. On the other hand, dielectric heating is a very expensive technique that can usually not compete against other techniques such as resistance or infrared heating concerning costs.
Rabah Diabi , Abdallah Moussaoui and Ali Belhamra , 2007. Electro Heat Techniques Applied to Poor Electrical Conductors: Dielectric Heating . Journal of Engineering and Applied Sciences, 2: 1188-1192.