Use settings in the Detailed Model section of the Energy Settings dialog to refine an energy simulation performed using building elements, a room-based or space-based export to gbXML, and Revit MEP heating and cooling load calculations.
To open the Energy Settings dialog, click Analyze tabEnergy Analysis panel
(Energy Settings).
The following parameters are listed under the Detailed Model heading.
Specify data export for either Rooms or Spaces.
This parameter applies only to Energy Analysis for Autodesk® Revit® or Export gbXML. Simple complexity is used for heating and cooling loads analysis.
Specify the level of detail provided for openings, and whether shading surface information is exported.
Shading surfaces are surfaces that are not adjacent to any space. They include surfaces that create a solar obstruction.
When the Export Category parameter is set to Rooms, select this parameter to include thermal properties in the building energy analysis.
To use this option, the model must include building elements such as walls and floors with assigned element layer material thermal data. If thermal data is not present in the model, the thermal properties default to Conceptual Constructions.
See About Rooms and Spaces for Energy Analysis, About Thermal Properties for Energy Analysis, and Add Thermal Properties to Building Element for Energy Analysis.
Specify the stage of construction.
To analyze the heating and cooling demands of the entire model, the project phase must correspond to the phase for all zones and spaces in the building model. Otherwise, the software analyzes only those zones and spaces with phases that correspond to the project phase.
Specify the tolerance for areas that will be considered sliver spaces. Spaces that are smaller than the specified size are treated as sliver spaces.
See Account for the Volume of Cavities, Shafts, and Chases and Resolve the Volume of Cavities, Shafts, and Chases.
Specify the method to use to determine the building envelope.
Specify the cell size for the uniform cubical grid used when Building Envelope is set to Identify Exterior Elements. This is the base size of the 3D grid cells, or cubes, used to divide the building shell bounding box into a uniform cubical 3D grid.
When the Export Category parameter is set to Spaces, this parameter specifies the heating and cooling systems for the building.
When the Export Category parameter is set to Spaces, this parameter specifies the type of construction, which determines the materials and insulation (U-values) for the building. This information is used for energy analysis, and for heating and cooling loads analysis.
Click in the Value column, and click the Browse button to access the Building Construction dialog. For more information, see About the Building Construction Dialog and Add Thermal Properties to Spaces for Energy Analysis.
When the Export Category parameter is set to Spaces, this parameter specifies an estimate of outdoor air that enters the building through leaks in the building envelope.
Select one of the following options:
When the Export Category parameter is set to Spaces, this parameter determines whether certain default values will be exported.
When it is selected, the default values for People and Electrical Loads, Occupancy, Lighting, and Power Schedules, and building/space type Construction Types are exported together with all user-specified values.
When it is cleared, only user-specified values are exported.
When the Export Category parameter is set to Spaces, this parameter specifies the level of information provided in the heating and cooling loads report. Select Simple, Standard, or Detailed.