.BuildingSystems.BoundaryConditions.SolarIrradiation.DiffusePerez

Information

This component computes the hemispherical diffuse irradiation on a tilted surface using an anisotropic sky model proposed by Perez. For a definition of the parameters, see the User's Guide.

References

• P. Ineichen, R. Perez and R. Seals (1987). The Importance of Correct Albedo Determination for Adequately Modeling Energy Received by Tilted Surface, Solar Energy, 39(4): 301-305.
• R. Perez, R. Seals, P. Ineichen, R. Stewart and D. Menicucci (1987). A New Simplified Version of the Perez Diffuse Irradiance Model for Tilted Surface, Solar Energy, 39(3): 221-231.
• R. Perez, P. Ineichen, R. Seals, J. Michalsky and R. Stewart (1990). Modeling Dyalight Availability and Irradiance Componets From Direct and Global Irradiance, Solar Energy, 44(5):271-289.

Revisions

• September 6, 2021, by Ettore Zanetti:
  Removed parameter lat as it is now obtained from the weather data bus.
  This is for IBPSA, #1477.
• November 14, 2015, by Michael Wetter:
  Added min, max and unit attributes for rho.
• June 6, 2012, by Wangda Zuo:
  Added contributions from sky and ground that were separated in base class.
• February 25, 2012, by Michael Wetter:
  Changed component to get zenith angle from weather bus.
• May 24, 2010, by Wangda Zuo:
  First implementation.