.BuildingSystems.BoundaryConditions.SolarGeometry.BaseClasses.ZenithAngle

Information

This component computes the zenith angle, which is the angle between the earth surface normal and the sun's beam. Input are the solar hour angle and the declination angle.

Revisions

• September 6, 2021, by Ettore Zanetti:
  Changed lat from being a parameter to an input from weather bus.
  This is for IBPSA, #1477.
• January 5, 2015, by Michael Wetter:
  Updated comment of the input connector as this is used in the weather bus connector. This is for issue 376.
• Dec 7, 2010, by Michael Wetter:
  Rewrote equation in explicit form to avoid nonlinear equations in room model.
• May 17, 2010, by Wangda Zuo:
  First implementation.