WINDOWMATERIAL:GAP:EQUIVALENTLAYER

Gas material properties that are used in Windows Equivalent Layer References only WindowMaterial:Gas properties

Name

Type: alphanumeric

Gas Type

Type: choice (AIR, ARGON, KRYPTON, XENON or CUSTOM)

Thickness

Type: real number
Unit: m

Gap Vent Type

Type: choice (Sealed, VentedIndoor or VentedOutdoor)
Sealed means the gap is enclosed and gas tight, i.e., no venting to indoor or outdoor environment. VentedIndoor means the gap is vented to indoor environment, and VentedOutdoor means the gap is vented to the outdoor environment. The gap types VentedIndoor and VentedOutdoor are used with gas type "Air" only.

Conductivity Coefficient A

Type: real number
Used only if Gas Type = Custom
Unit: W/m-K

Conductivity Coefficient B

Type: real number
Used only if Gas Type = Custom
Unit: W/m-K2

Conductivity Coefficient C

Type: real number
Used only if Gas Type = Custom
Unit: W/m-K3

Viscosity Coefficient A

Type: real number
Used only if Gas Type = Custom
Unit: kg/m-s

Viscosity Coefficient B

Type: real number
Used only if Gas Type = Custom
Unit: kg/m-s-K

Viscosity Coefficient C

Type: real number
Used only if Gas Type = Custom
Unit: kg/m-s-K2

Specific Heat Coefficient A

Type: real number
Used only if Gas Type = Custom
Unit: J/kg-K

Specific Heat Coefficient B

Type: real number
Used only if Gas Type = Custom
Unit: J/kg-K2

Specific Heat Coefficient C

Type: real number
Used only if Gas Type = Custom
Unit: J/kg-K3

Molecular Weight

Type: real number
Used only if Gas Type = Custom
Unit: g/mol
Minimum: 20.0
Maximum: 200.0

Specific Heat Ratio

Type: real number
Used only if Gas Type = Custom