Heaters

This dialog is opened via Settings Menu.

Each region can be defined as a heater. In the Heaters dialog you can display, add, change and delete heaters.

Note

A region can be part only of one heater, but a heater can consist of one or more regions. In this case you must portion out the power of the resistance heater.

Heaters dialog 

Figure 28. Heaters dialog

Item

Description

Heaters

Shows a list of all heaters and their power respectively current in column Actual. When you select a heater from the list, the settings of the heater are displayed and the corresponding regions are selected in the Main Window.

When you click on a region in the Main Window, a new heater is added respectively the corresponding heater is selected in the list.

You can piece together a heater from more than one region, if you select a heater, hold the CTRL key and select further regions. To portion out the total power to the regions see Heaters.

Name

You can enter a name for the heater in this field (no spaces allowed). Confirm with Enter or click Apply to save the entry.

delete heater

Deletes the heater from the list. The corresponding regions remain in the drawing.

Regions of heater

Shows the regions of the selected heater and their fractions of the heaters total power respectively current.

Fraction

Specifies the fraction of the heaters power belonging to the selected region. The sum of all fractions for one resistance heater must be 1, e.g. 0.2, 0.3 and 0.5 for a heater consisting of three regions.

delete region

Deletes the selected region from the list, so that the region does not belong to the selected heater any more. The region in the Main Window will remain, so that you can reassign the deleted region to the heater every time.

You can assign a region only to one heater at the same time.

Resistance

Specifies the selected heater as a resistance heater, which is defined by its power value (in W).

Induction

Specifies the selected heater as an induction heater, which is defined by the current through the coil (in A) and its Frequency (in Hz). (Please read Physical background !)

Fixed power

The heating power respectively current is constant during the simulation.

Profile power

The power respectively current is time-dependent and read from the specified file. The first column contains the time (in s) and the power respectively the current at that time in the column ( col ) specified by the dialog.

Linear interpolation is used between the rows of the file.

Controlled power

The power respectively current will be calculated in an inverse simulation, see Running an Inverse Simulation. In this case, you must set the minimal allowed power respectively current ( min: ) and the maximal allowed power respectively current ( max: ).

Controlled profile

The power respectively current will be calculated in an inverse simulation. In this case, you must set the minimal allowed power respectively current ( min ) and the maximal allowed power respectively current ( max ).

The initial values for the power respectively current of the heater are read from the specified file. After the simulation the final power (current) values will be saved to the same place. If no file exists, it will be created.

Between the rows of the file linear interpolation is used.

file name

Specifies a *.pro file with the desired time-dependent heater profile. This is available for the options Profile power and for Controlled profile.

Column

Specifies the column number in the *.pro file ( file name ) with the heater values (power in W for resistance heaters or current in A for inductive heaters).

TMF effect

calculate TMF forces by this heater,see Computing traveling magnetic fields (TMF)

adj. eff

in the case of inductive heaters with electrically conducting material, this enables an (still experimental) feature which automatically adjusts prescribed currents per coil such that the effective currents are the same in each winding, see Physical background

Related Procedures

Heaters