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How to use Thermal Model Exchanger
The following section describes how to use Thermal Model Exchanger to transfer thermal models between Thermal Desktop and Simcenter 3D Space Systems Thermal.
Export a Thermal Desktop model to Simcenter 3D
When you export a Thermal Desktop model to Simcenter 3D Space Systems Thermal, Thermal Model Exchanger reads the CAE entities used in the Thermal Desktop session, and converts the supported entities to an XML file.

User documentation
- Introduction
  Thermal Model Exchanger is a Windows application that allows you to transfer thermal models between Ansys Thermal Desktop^TM and Simcenter 3D Space Systems Thermal. The application supports the transfer of meshes, material and optical properties, and boundary conditions of your model.
- Thermal Model Exchanger user interface
  The Thermal Model Exchanger user interface consists of a top border bar and an information window.
- How to use Thermal Model Exchanger
  The following section describes how to use Thermal Model Exchanger to transfer thermal models between Thermal Desktop and Simcenter 3D Space Systems Thermal.
  - Start Thermal Model Exchanger
    You can start Thermal Model Exchanger in a new or existing Thermal Desktop session.
  - Import a Simcenter 3D model to Thermal Desktop
    When you import a Simcenter 3D model to Thermal Desktop, Thermal Model Exchanger imports the CAE entities listed in the thermal solver input XML file generated by Simcenter 3D Space Systems Thermal.
  - Export a Thermal Desktop model to Simcenter 3D
    When you export a Thermal Desktop model to Simcenter 3D Space Systems Thermal, Thermal Model Exchanger reads the CAE entities used in the Thermal Desktop session, and converts the supported entities to an XML file.
- Simcenter 3D entities supported by Thermal Model Exchanger
  This page summarizes the Simcenter 3D Space Systems Thermal entities supported by the Thermal Model Exchanger during the import.
- Thermal Desktop entities supported by Thermal Model Exchanger
  This page summarizes the Thermal Desktop entities supported by the Thermal Model Exchanger during the export.
- Assumptions and limitations for importing a model
  The following section describes the Thermal Model Exchanger assumptions and limitations when you import a Simcenter 3D Space Systems Thermal model into Thermal Desktop.
- Assumptions and limitations for exporting a model
  The following section describes the Thermal Model Exchanger assumptions and limitations when you export a Thermal Desktop model to a Simcenter 3D Space Systems Thermal XML file.
- Legal notice

Export a Thermal Desktop model to Simcenter 3D

When you export a Thermal Desktop model to Simcenter 3D Space Systems Thermal, Thermal Model Exchanger reads the CAE entities used in the Thermal Desktop session, and converts the supported entities to an XML file.

Start Thermal Model Exchanger, which allows you to export a model from a new Thermal Desktop session or from an existing one.

In Thermal Desktop, open the model you want to export to Simcenter 3D.
In TMX, click Refresh the list of available Case Sets in the current Thermal Desktop session to refresh the list of available case sets from the Thermal Desktop model.
It allows you to select case sets created while the Thermal Model Exchanger application is running.
Select the case set you want to export to the Simcenter 3D XML file.
Click Export the selected Case Set to a Simcenter 3D Thermal XML File .
After the export is completed, an XML file of the Thermal Desktop model will be in your working directory. If you already exported a Thermal Desktop model to a Simcenter 3D Thermal XML file, the export operation places the generated XML file in the same directory as the XML file you used for the export operation.
Start Simcenter 3D Pre/Post.
Choose Home tab→Import Simulation Input File .
From the list, select the Simcenter 3D Space Systems Thermal solver and click OK.
From the File Type list, select Solver Input XML File.
Click Browse, select the Simcenter 3D XML file generated by TMX, and click OK twice.
Specify the location and name of the FEM and Simulation files and click OK.
In the Information window, explore the import report to identify if entities are not imported and potential import errors were encountered by the software.
Close the Information window and explore the imported Thermal Desktop model.