blockRelativeAirMass

Relative air mass
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Extends from Modelica.Blocks.Icons.Block (Basic graphical layout of input/output block).

Information

This component computes the relative air mass for sky brightness.

References

R. Perez (1999). Fortran Function irrpz.f, Emailed by R. Perez to F.C. Winkelmann on May 21, 1999.

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInputaltlocation altitude
Modelica.Blocks.Interfaces.RealInputzenZenith angle of the sun beam
Modelica.Blocks.Interfaces.RealOutputrelAirMasRelative air mass

Revisions

  • September 6, 2021, by Ettore Zanetti:
    Changed lat from being a parameter to an input from weather bus.
    This is for IBPSA, #1477.
  • May 2, 2021, by Ettore Zanetti: Introduced altitude attenuation for relative air mass calculation. This is for IBPSA, issue 1477.
  • April 27, 2018, by Michael Wetter:
    Corrected displayUnit.
    This is for IBPSA, issue 912.
  • July 07, 2010, by Wangda Zuo:
    First implementation.