4.5.3.1.3 Process Temperature Modeling:

The PromisNTSetupModel interface parameter processTemperature (Table 4.6)
[4]specifies the MDL class which is instantiated to compute the process temperature for each time step during the transient simulation.

Table 4.6: PROMIS-NT setup Model Parameters for process temperature modeling

Name	Type	Description
processTemperature	MdlString	MDL class to compute the process temperature.

The thereby defined MDL class has to be derived from the base class ProcessTemperatureModel. Its evaluate computes the process temperature temp by using a set of interface Parameters described in Table 4.7. Example 4.1 depicts a possible implementation of such a process temperature model resulting into a temperature ramp from $973 K$ to $1073 K$ within the first $10$ seconds of the transient simulation.

Table 4.7: Parameters of the process temperature Model

Name	Type	I/O	Description
time	double	I	Actual simulation time in [$s$]
startTime	double	I	Simulation start time in [$s$] as specified within the PROMIS-NT setup model.
endTime	double	I	Simulation end time in [$s$] as specified within the PROMIS-NT setup model.
temp	double	O	Process temperature in [$K$]

NewModel RampUpTemperatureModel : ProcessTemperatureModel {
   evaluate {
      if ( :time < 10 ) { :temp = 973.0 + :time * 10.0; }
      else { :temp = 1073.0; }
   }
}

Example 4.1: PROMIS-NT process temperature Model