modelCorrectionGDoublePane

Double pane window solar correction

Extends from BaseClasses.PartialCorrectionG (Partial model for correction of the solar gain factor).

Information

This model computes short-wave radiation through transparent elements with any orientation and inclination by means of solar transmission correction factors. Transmission properties of transparent elements are in general dependent on the solar incidence angle. To take this dependency into account, correction factors can be multiplied with the solar radiation. These factors should not be mistaken as calculation of solar radiation on tilted surfaces, calculation of g-values or consideration of sunblinds, as it is an additional step. The implemented calculations are defined in the German Guideline VDI 6007 Part 3 (VDI, 2015). The given model is only valid for double pane windows. The guideline describes also calculations for single pane and triple pane windows.

References

VDI. German Association of Engineers Guideline VDI 6007-3 June 2015. Calculation of transient thermal response of rooms and buildings - modelling of solar radiation.

Parameters

TypeNameDefaultDescription
Integern (from PartialCorrectionG)Vector size for input and output
Modelica.Units.SI.CoefficientOfHeatTransferUWin (from PartialCorrectionG)Thermal transmission coefficient of whole window

Connectors

TypeNameDefaultDescription
Modelica.Blocks.Interfaces.RealInput[n]HSkyDifTil (from PartialCorrectionG)Hemispherical diffuse solar irradiation on a tilted surface from the sky
Modelica.Blocks.Interfaces.RealInput[n]HDirTil (from PartialCorrectionG)Direct solar radiation on a tilted surface per unit area
Modelica.Blocks.Interfaces.RealInput[n]HGroDifTil (from PartialCorrectionG)Hemispherical diffuse solar irradiation on a tilted surface from the ground
Modelica.Blocks.Interfaces.RealInput[n]inc (from PartialCorrectionG)Incidence angles
Modelica.Blocks.Interfaces.RealOutput[n]solarRadWinTrans (from PartialCorrectionG)transmitted solar radiation through windows

Revisions

  • February 7, 2025, by Jelger Jansen:
    Removed import statement. This is for IBPSA, #1961.
  • September 12, 2015 by Moritz Lauster:
    Adapted to Annex 60 requirements.
  • February 24, 2014, by Reza Tavakoli:
    First implementation.