BuildSysPro.BoundaryConditions.Solar.Irradiation.NaturalIlluminance

# .BuildSysPro.BoundaryConditions.Solar.Irradiation.NaturalIlluminance

Natural illuminance transmitted to a zone

## Information

Natural illuminance transmitted to a zone and artificial lighting demand

Hypothesis and equations

From incident illuminance from each bay window, the luminous flux transmitted in direct, hemispherical and semi-hemispherical form are determined. Thus the equivalent luminous flux transmitted to the zone and the global natural lighting transmitted to the zone are deduced.

With a threshold of luminous autonomy, it's possible to determine the artifical lighting demand.

Bibliography

Method Th-BCE RT 2012

Instructions for use

none

Known limits / Use precautions

none

Validations

Validated model - Laura Sudries 05/2014

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Licensed by EDF under a 3-clause BSD-license
Copyright © EDF 2009 - 2023
BuildSysPro version 3.6.0
Author : Laura SUDRIES, Vincent MAGNAUDEIX, EDF (2014)
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## Revisions

Benoît Charrier 05/2015 : ajout du flux lumineux incident venant du plafond

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