.Buildings.HeatTransfer.Windows.BaseClasses.Examples.Overhang

Information

This example uses the basic overhang model with solar angles as input and calculates the fraction of total window area that is exposed to the sun. For a detail description of the solar angles used in the model, see Buildings.BoundaryConditions.SolarGeometry. For a detailed description of the overhang block, see Buildings.HeatTransfer.Windows.BaseClasses.Overhang. The required data for the solar angle calculations is obtained from weather data.

• Buildings.BoundaryConditions.SolarGeometry.ZenithAngle: Angle between sun ray and normal to horizontal surface
• Buildings.BoundaryConditions.SolarGeometry.IncidenceAngle: Solar incidence angle on a tilted surface
• Buildings.BoundaryConditions.SolarGeometry.BaseClasses.AltitudeAngle: Angle between Sun ray and horizontal surface
• Buildings.BoundaryConditions.SolarGeometry.BaseClasses.WallSolarAzimuth: Angle measured in horizontal plane between projection of sun's rays and normal to vertical surface

The values of the parameters of the overhang model have been set in such a way that the overhang in non-symmetric with respect to the window center-line.

Revisions

• September 16, 2021, by Michael Wetter:
  Removed assignment of parameter lat as this is now obtained from the weather data reader.
  This is for IBPSA, #1477.
• July 5, 2012, by Michael Wetter
  Changed parameters to test non-symmetric overhang.
• Feb 01, 2012, by Kaustubh Phalak
  First implementation.