In thermal analysis, simulate internal heat generation and internal heat absorption
        in volumes.
        A positive volume heat value indicates a heat source, and a negative volume heat
            value indicates a heat sink.
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                In the Project Tree, click on a Thermal analysis branch to open the
                        Analysis Workbench.
            
 
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                On the workbench toolbar, click the  
(Volume heat) icon.
                The Volume heat dialog will open.
             
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                On the modeling window, click to select specific parts on the model.
            
 
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                Specify volume heat units and value.
            
 
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                Click OK to create.