BuildingControlLib.Utilities.Sunblinds.Sunblind_ControlInput

# .BuildingControlLib.Utilities.Sunblinds.Sunblind_ControlInput

Model of a sunblind which reduces the irradiation on a surface. Sunblind operation is given as an boolean input.

## Information

#### Overview

This model represents a controllable sunblind to reduce the vectorial radiance on facades, windows. etc.

#### Level of Development

#### Concept

- You can define the amount of radiance hitting the facade with gsunblind, which states how much radiance goes through the closed sunblind
- Via a boolean input define when the sunblind is deployed and when not

#### Assumptions

All directions are closed at the same time. The if/else construct to enforce solar shade deployment induces a genuine discontinuity to the equation system.

All three components of the solar radiation of the tilted surface (direct, diffuse and reflected from ground) are reduced by the same factor.

There is no possibility to disable the sunblind in a specific direction. This isn't necessary, as you can set gsunblind in this direction to 1, which means, that the whole radiance is passing through the closed sunblind.

#### Example Results

This model is part of Wall_ASHARAE140_mod and checked in the Examples RoomWithSunshade.

#### Acknowledgements

This model is derived from the model Sunblind from the AixLib library https://www.github.com/RWTH-EBC/AixLib

## Revisions

- September 15, 2016 by Georg Ferdinand Schneider:

Implemented boolean input to be controllable

Revision history of origin:

- January 16, 2015 by Ana Constantin:
  Implemented as extending from PartialSunblind and using the new solar radiation connectors
- May 02, 2013 by Ole Odendahl:
  Formatted documentation appropriately
- January 2012, by Moritz Lauster:
  Implemented.

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