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how can i assign ''Shading:Zone:Detailed''??

asked 2018-06-21 15:22:22 -0500

day9914 gravatar image

updated 2018-06-22 07:57:15 -0500

BORM gravatar image

how can I assign '' Shading: Zone: Detailed '', I understand that this is a kind of shading for walls , but i do not know how can i assign this since OpenStudio or SketchUp.

I read this in BIG LADDER SOFTAWARE

''Shading:Zone:Detailed This object is used to describe attached “subsurfaces” such as overhangs, wings or fins that project outward from a base surface. This classification is used for convenience; actually, a device of this type can cast shadows on the surface to which it is attached as well as on adjacent surfaces. For example, a fin may shade its parent wall as well as adjacent walls.

Note that a zone surface can cast shadows on other zone surfaces. However, you don’t have to worry about such effects—for example, one wall of an L-shaped building shading another wall–because EnergyPlus will automatically check for this kind of “self shadowing” and do the proper calculations.

Unlike attached (or detached) shading surfaces, building surfaces can only cast shadows in the hemisphere towards which they face. This means, for example, that a roof that faces upward will not cast a shadow downward. (Thus, specifying an oversized roof in an attempt to account for the shading effects of overhangs will not work). Interior surfaces do not cast shadows of any kind.

Inputs Field: Name This is the name of the attached shading surface. It must be different from other surface names.

Field: Base Surface Name This is the name of the surface to which this shading device is attached. This surface can be a wall (or roof) but not a window or door.

Field: Transmittance Schedule Name The name of a schedule of solar transmittance values from 0.0 to 1.0 for the shading surface. If a blank is entered in this field, the transmittance value defaults to 0.0, i.e., the shading surface is opaque at all times. This scheduling can be used to allow for seasonal transmittance change, such as for deciduous trees that have a higher transmittance in winter than in summer. Transmittance based on time of day can also be used—a movable awning, for example, where the transmittance is some value less than 1.0 when the awning is in place and is 1.0 when the awning is retracted.''

Please help me

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answered 2018-06-26 00:00:53 -0500

You can add zone, building, and site shading surfaces using the Shading Surface Group object in OpenStudio.

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Asked: 2018-06-21 15:22:22 -0500

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Last updated: Jun 26 '18