WINDOWMATERIAL:SHADE:EQUIVALENTLAYER

Specifies the properties of equivalent layer window shade material Shades are considered to be perfect diffusers (all transmitted and reflected radiation is hemispherically-diffuse) independent of angle of incidence. Shade represents roller blinds.

Name

Type: alphanumeric

Shade Beam-Beam Solar Transmittance

Type: real number
The beam-beam solar transmittance at normal incidence. This value is the same as the openness area fraction of the shade material. Assumed to be the same for front and back sides.
Unit: dimensionless
Minimum: 0.0
Maximum: 0.8
Default: 0.0

Front Side Shade Beam-Diffuse Solar Transmittance

Type: real number
The front side beam-diffuse solar transmittance at normal incidence averaged over the entire spectrum of solar radiation.
Unit: dimensionless
Minimum: 0

Back Side Shade Beam-Diffuse Solar Transmittance

Type: real number
The back side beam-diffuse solar transmittance at normal incidence averaged over the entire spectrum of solar radiation.
Unit: dimensionless
Minimum: 0

Front Side Shade Beam-Diffuse Solar Reflectance

Type: real number
The front side beam-diffuse solar reflectance at normal incidence averaged over the entire spectrum of solar radiation.
Unit: dimensionless
Minimum: 0

Back Side Shade Beam-Diffuse Solar Reflectance

Type: real number
The back side beam-diffuse solar reflectance at normal incidence averaged over the entire spectrum of solar radiation.
Unit: dimensionless
Minimum: 0

Shade Beam-Beam Visible Transmittance at Normal Incidence

Type: real number
The beam-beam visible transmittance at normal incidence averaged over the visible spectrum range of solar radiation. Assumed to be the same for front and back sides of the shade.
Unit: dimensionless
Minimum: 0

Shade Beam-Diffuse Visible Transmittance at Normal Incidence

Type: real number
The beam-diffuse visible transmittance at normal incidence averaged over the visible spectrum range of solar radiation. Assumed to be the same for front and back sides of the shade.
Unit: dimensionless
Minimum: 0

Shade Beam-Diffuse Visible Reflectance at Normal Incidence

Type: real number
The beam-diffuse visible reflectance at normal incidence averaged over the visible spectrum range of solar radiation. Assumed to be the same for front and back sides of the shade.
Unit: dimensionless
Minimum: 0

Shade Material Infrared Transmittance

Type: real number
The long-wave transmittance of the shade material at zero shade openness. Assumed to be the same for front and back sides of the shade.
Unit: dimensionless
Minimum: 0
Default: 0.05

Front Side Shade Material Infrared Emissivity

Type: real number
The front side long-wave emissivity of the shade material at zero shade openness. Openness fraction is used to calculate the effective emissivity value.
Unit: dimensionless
Default: 0.91

Back Side Shade Material Infrared Emissivity

Type: real number
The back side long-wave emissivity of the shade material at zero shade openness. Openness fraction is used to calculate the effective emissivity value.
Unit: dimensionless
Default: 0.91