Computing Inductive Heating

Physical background
Prerequisites and Tasks
Prerequisites for calculations with inductive heating
Specification of the furnace used in this tutorial
Additional Notes
Computing inductive heating for fixed power
Computing inductive heating for controlled power

CrysMAS can compute magnetic fields produced by an alternating current through a coil (alternating field) and also inductive heat produced by the magnetic fields in materials with non-zero electric conductivity.

An arbitrary number of coils can be handled with fixed frequency and current. Furthermore, CrysMAS offers the possibility to control one inductive heating element (that may consist of several coils) by adjusting the current of the coils to fix the temperature at a chosen control point. The restriction to one controlled heater in contrast to resistance heating is based on the fact that heat is not released in the regions of the heaters themselves, but in any electrically conducting region of the furnace model. This does not affect the number of induction heaters with fixed or prescribed currents; there may also be an arbitrary number of controlled resistance heaters.

You can compute inductive heating not only for pseudo-stationary, but also for time-dependent simulation by providing profile files. The heater setting, however, is more important, because fixed power and controlled power effect the proceeding.

At first the assumptions and prerequisites used by CrysMAS and in this tutorial are explained and subsequently the following tutorial tasks are addressed: