Location = Libraries/Materials and Assemblies/SolarShades
The Type and Sub Type options that can be selected from the drop down lists in that area of the workspace, which filter the Source Library to display the variables the user can select to include, along with a value, in a Library Entry.
Note: The links within the table are to the EnergyPlus Input Output Reference providing additional detailed explanation of the EnergyPlus objects.
| Type Options | Sub Type Options | EnergyPlus Objects (IO Reference links) |
Overhang |
Default Projection |
Shading:Overhang:Projection |
Fin |
Default Projection |
Shading:Fin:Projection |
| Frame and Divider | Default |
|
An overhang typically is used to shade a window in a building.
Property Category = Shading:Overhang
This field is the height above the top of the door for the overhang.
This field is the tilt angle from the Window/Door. For a flat overhang, this would be 90 (degrees).
This field is the width from the left edge of the window/door to the start of the overhang.
This field is the width from the right edge of the window/door to the start of the overhang.
This field is the depth of the overhang projecting out from the wall.
Property Category = ShadingProperty:Reflectance
The diffuse solar reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The diffuse visible reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
This value if used only for the daylighting calculation (ref: Daylighting:Controls). The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The fraction of the area of the shading surface that consists of windows (default = 0.0). It is assumed that the windows are evenly distributed over the surface and have the same glazing construction (see following “Name of Glazing Construction”). This might be the case, for example, for reflection from the façade of a neighboring, highly-glazed building. For the reflection calculation the possible presence of shades, screens or blinds on the windows of the shading surface is ignored. Beam-to-beam (specular) reflection is assumed to occur only from the glazed portion of the shading surface. This reflection depends on angle of incidence as determined by the program from the glazing construction. Beam-to-diffuse reflection from the glazed portion is assumed to be zero. The diffuse-to-diffuse reflectance of the glazed portion is determined by the program from the glazing construction.
The name of the construction of the windows on the shading surface. Required if "Fraction of Shading Surface That Is Glazed" is greater than 0.0.
An overhang typically is used to shade a window in a building. This object allows for specifying the depth of the overhang as a fraction of the window or door’s height.
Property Category = Shading:Overhang:Projection
This field is the height above the top of the door for the overhang.
This field is the tilt angle from the Window/Door. For a flat overhang, this would be 90 (degrees).
This field is the width from the left edge of the window/door to the start of the overhang.
This field is the width from the right edge of the window/door to the start of the overhang.
This field is the fraction of the window/door height to specify as the depth of the overhang projecting out from the wall.
Property Category = ShadingProperty:Reflectance
The diffuse solar reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The diffuse visible reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
This value if used only for the daylighting calculation (ref: Daylighting:Controls). The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The fraction of the area of the shading surface that consists of windows (default = 0.0). It is assumed that the windows are evenly distributed over the surface and have the same glazing construction (see following “Name of Glazing Construction”). This might be the case, for example, for reflection from the façade of a neighboring, highly-glazed building. For the reflection calculation the possible presence of shades, screens or blinds on the windows of the shading surface is ignored. Beam-to-beam (specular) reflection is assumed to occur only from the glazed portion of the shading surface. This reflection depends on angle of incidence as determined by the program from the glazing construction. Beam-to-diffuse reflection from the glazed portion is assumed to be zero. The diffuse-to-diffuse reflectance of the glazed portion is determined by the program from the glazing construction.
The name of the construction of the windows on the shading surface. Required if "Fraction of Shading Surface That Is Glazed" is greater than 0.0.
Fins shade either side of windows/doors in a building. This object allows for specification of both fins for the window. Fin placement is relative to the edge of the glass and user must include the frame width when a frame is present.
Property Category = Shading:Fin
This field is the width from the left edge of the window/door to the plane of the left fin. The extension width is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the top of the window to the top of the left fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the bottom of the window to the bottom of the left fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the tilt angle from the window / door for the left fin. Typically, a fin is 90 degrees (default) from its associated window/door.
This field is the depth of the left fin (projecting out from the wall).
This field is the width from the right edge of the window/door to the plane of the right fin. The extension width is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the top of the window to the top of the right fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the bottom of the window to the bottom of the right fin and is relative to the edge of the glass and includes the frame width.
This field is the tilt angle from the window / door for the right fin.. Typically, a fin is 90 degrees (default) from its associated window/door.
This field is the depth of the right fin (projecting out from the wall).
Property Category = ShadingProperty:Reflectance
The diffuse solar reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The diffuse visible reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
This value if used only for the daylighting calculation (ref: Daylighting:Controls). The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The fraction of the area of the shading surface that consists of windows (default = 0.0). It is assumed that the windows are evenly distributed over the surface and have the same glazing construction (see following “Name of Glazing Construction”). This might be the case, for example, for reflection from the façade of a neighboring, highly-glazed building. For the reflection calculation the possible presence of shades, screens or blinds on the windows of the shading surface is ignored. Beam-to-beam (specular) reflection is assumed to occur only from the glazed portion of the shading surface. This reflection depends on angle of incidence as determined by the program from the glazing construction. Beam-to-diffuse reflection from the glazed portion is assumed to be zero. The diffuse-to-diffuse reflectance of the glazed portion is determined by the program from the glazing construction.
The name of the construction of the windows on the shading surface. Required if "Fraction of Shading Surface That Is Glazed" is greater than 0.0.
Fins shade either side of windows/doors in a building. This object allows for specification of both fins for the window. This object allows for specifying the depth of the overhang as a fraction of the window or door’s width. Fin placement is relative to the edge of the glass and user must include the frame width when a frame is present.
Property Category = Shading:Fin:Projection
This field is the width from the left edge of the window/door to the plane of the left fin. The extension width is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the top of the window to the top of the left fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the bottom of the window to the bottom of the left fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the tilt angle from the window / door for the left fin. Typically, a fin is 90 degrees (default) from its associated window/door.
This field is the fraction of the window/door width to specify as the depth of the left fin projecting out from the wall.
This field is the width from the right edge of the window/door to the plane of the right fin. The extension width is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the top of the window to the top of the right fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the distance from the bottom of the window to the bottom of the right fin and is relative to the edge of the glass and includes the frame width when a frame is present.
This field is the tilt angle from the window / door for the right fin.. Typically, a fin is 90 degrees (default) from its associated window/door.
This field is the fraction of the window/door width to specify as the depth of the right fin projecting out from the wall.
Property Category = ShadingProperty:Reflectance
The diffuse solar reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The diffuse visible reflectance of the unglazed part of the shading surface (default = 0.2). This reflectance is assumed to be the same for beam-to-diffuse and diffuse-to-diffuse reflection. Beam-to-diffuse reflection is assumed to be independent of angle of incidence of beam radiation. Diffuse-to-diffuse reflection is assumed to be independent of angular distribution of the incident of diffuse radiation. The outgoing diffuse radiation is assumed to be isotropic (hemispherically uniform).
This value if used only for the daylighting calculation (ref: Daylighting:Controls). The sum of this reflectance and the shading surface transmittance should be less than or equal to 1.0.
The fraction of the area of the shading surface that consists of windows (default = 0.0). It is assumed that the windows are evenly distributed over the surface and have the same glazing construction (see following “Name of Glazing Construction”). This might be the case, for example, for reflection from the façade of a neighboring, highly-glazed building. For the reflection calculation the possible presence of shades, screens or blinds on the windows of the shading surface is ignored. Beam-to-beam (specular) reflection is assumed to occur only from the glazed portion of the shading surface. This reflection depends on angle of incidence as determined by the program from the glazing construction. Beam-to-diffuse reflection from the glazed portion is assumed to be zero. The diffuse-to-diffuse reflectance of the glazed portion is determined by the program from the glazing construction.
The name of the construction of the windows on the shading surface. Required if "Fraction of Shading Surface That Is Glazed" is greater than 0.0.
Source: EnergyPlus Input Output Reference - a window with a frame and divider
Property Category - Window Property:Frame and Divider
The width of the frame elements when projected onto the plane of the window. It is assumed that the top, bottom and side elements of the frame have the same width. If not, an average frame width should be entered such that the projected frame area calculated using the average value equals the sum of the areas of the frame elements.
The amount by which the frame projects outward from the outside surface of the window glazing. If the outer surface of the frame is flush with the glazing, Frame Outside Projection = 0.0. Used to calculate shadowing of frame onto glass, solar absorbed by frame, IR emitted and absorbed by frame, and convection from frame.
The amount by which the frame projects inward from the inside surface of the window glazing. If the inner surface of the frame is flush with the glazing, Frame Inside Projection = 0.0. Used to calculate solar absorbed by frame, IR emitted and absorbed by frame, and convection from frame.
The effective thermal conductance of the frame measured from inside to outside frame surface (no air films) and taking 2-D conduction effects into account. Obtained from WINDOW 5 or other 2-D calculation.
The glass conductance near the frame (excluding air films) divided by the glass conductance at the center of the glazing (excluding air films). Used only for multi-pane glazing constructions. This ratio is greater than 1.0 because of thermal bridging from the glazing across the frame and across the spacer that separates the glass panes. Values can be obtained from WINDOW 5 for the user-selected glazing construction and frame characteristics.
The solar absorptance of the frame. The value is assumed to be the same on the inside and outside of the frame and to be independent of angle of incidence of solar radiation. If solar reflectance (or reflectivity) data is available, then absorptance is equal to 1.0 minus reflectance (for opaque materials).
The visible absorptance of the frame. The value is assumed to be the same on the inside and outside of the frame and to be independent of angle of incidence of solar radiation. If visible reflectance (or reflectivity) data is available, then absorptance is equal to 1.0 minus reflectance (for opaque materials).
The thermal emissivity of the frame, assumed the same on the inside and outside.
Source: EnergyPlus Input Output Reference - divider types
The type of divider (see figure below). Divider Type = Suspended is applicable only to multi-pane glazing. It means that the divider is suspended between the panes. (If there are more than two glass layers, the divider is assumed to be placed between the two outermost layers.)
Divider Type = DividedLite means that the divider elements project out from the outside and inside surfaces of the glazing and divide the glazing into individual lites. For multi-pane glazing, this type of divider also has between-glass elements that separate the panes.
The width of the divider elements when projected onto the plane of the window. It is assumed that the horizontal and vertical divider elements have the same width. If not, an average divider width should be entered such that the projected divider area calculated using the average value equals the sum of the areas of the divider elements.
The number of divider elements parallel to the top and bottom of the window.
The number of divider elements parallel to the sides of the window.
The amount by which the divider projects out from the outside surface of the window glazing. For Divider Type = Suspended, Divider Projection = 0.0. Used to calculate shadowing of divider onto glass, solar absorbed by divider, IR emitted and absorbed by divider, and convection from divider.
The amount by which the divider projects inward from the inside surface of the window glazing. If the inner surface of the divider is flush with the glazing, Divider Inside Projection = 0.0. Used to calculate solar absorbed by divider, IR emitted and absorbed by divider, and convection from divider.
The effective thermal conductance of the divider measured from inside to outside divider surface (no air films) and taking 2-D conduction effects into account. Obtained from WINDOW 5/6 or other 2-D calculation.
The glass conductance near the divider (excluding air films) divided by the glass conductance at the center of the glazing (excluding air films). Used only for multi-pane glazing constructions. This ratio is greater than 1.0 because of thermal bridging from the glazing across the divider and across the spacer that separates the glass panes. Values can be obtained from WINDOW 5/6 for the user-selected glazing construction and divider characteristics.
The solar absorptance of the divider. The value is assumed to be the same on the inside and outside of the divider and to be independent of angle of incidence of solar radiation. If solar reflectance (or reflectivity) data is available, then absorptance is equal to 1.0 minus reflectance (for opaque materials).
The visible absorptance of the divider. The value is assumed to be the same on the inside and outside of the divider and to be independent of angle of incidence of solar radiation. If visible reflectance (or reflectivity) data is available, then absorptance is equal to 1.0 minus reflectance (for opaque materials).
The thermal emissivity of the divider, assumed the same on the inside and outside.
The solar absorptance of outside reveal surfaces.
Source: EnergyPlus Input Output Reference - (a) Vertical section through a window (with frame) showing outside and inside reveal surfaces and inside sill. (b) Perspective view looking from the outside of a window (without frame) showing reveal surfaces. Note that “Outside Reveal Depth” is not a user input; it is calculated by the program from the window and wall vertices.
The depth of the inside reveal surfaces other than the sill, measured from the inside surface of the glazing to the edge of the reveal surface.
The solar absorptance of the inside reveal surfaces other than the sill.
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