Comparison of Induction and Dielectric Heating
After studying the induction and dielectric heating followings points may consider for comparison between induction and dielectric heating.
a.The frequency range in induction heating is much less than frequency range in dielectric heating in induction heating it is in the range of 100KHz. To 0.5 MHz whereas in dielectric heating it is in the range of 1 MHz to 40 MHz.
b.Induction heating is due to eddy currents which is induced due to mutual induction whereas the dielectric heating is due to dielectric loss in imperfect dielectrics.
c.Induction heating is basically surface heating because density for eddy currents is maximum at the surface. However dielectric less takes place in the volume of dielectric i ,e dielectric heating is volume heating.
d.As compare to induction heating equipments for dielectric heating are very costly.