Buildings.ThermalZones.Detailed.FLEXLAB.Data.Constructions.OpaqueConstructions.Roofs
Roof constructions commonly found in FLEXLAB test cells
Information
This package contains models of roofs found in the LBNL FLEXLAB facility.
Extends from Modelica.Icons.MaterialPropertiesPackage (Icon for package containing property classes).
Package Content
| Name | Description |
|---|---|
 ASHRAE_901_1975Roof
|
Construction model for a roof minimally compliant with ASHRAE 90.1-1975. Used in test cells X1A and X1B |
| ASHRAE_901_2010Roof
|
Construction model for a roof minimally compliant with ASHRAE 90.1-2010. Used in test cells X3A, X3B, and XRA |
| CA_T24_2013Roof
|
Construction model for a roof minimally compliant with CA Title 24-2013. Used in test cells X2A and X2B |
Buildings.ThermalZones.Detailed.FLEXLAB.Data.Constructions.OpaqueConstructions.Roofs.ASHRAE_901_1975Roof
Construction model for a roof minimally compliant with ASHRAE 90.1-1975.
Used in test cells X1A and X1B
Information
This is a model of a roof which is minimally compliant with ASHRAE 90.1-1975. It is used to model the roof in test bed X1.
This model is not currently completed. For more information see the future work list at Buildings.ThermalZones.Detailed.FLEXLAB.UsersGuide.
Extends from Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (Thermal properties of opaque constructions).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nLay | 3 | Number of layers |
| Material | material[nLay] | {Buildings.HeatTransfer.Data... | Layer by layer declaration of material, starting from outside to room-side |
| Emissivity | absIR_a | 0.9 | Infrared absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absIR_b | 0.9 | Infrared absorptivity of surface b (usually room-facing surface) [1] |
| Emissivity | absSol_a | 0.5 | Solar absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absSol_b | 0.5 | Solar absorptivity of surface b (usually room-facing surface) [1] |
| SurfaceRoughness | roughness_a | Buildings.HeatTransfer.Types... | Exterior surface roughness |
| Advanced | |||
| Integer | nSta[nLay] | {material[i].nSta for i in 1... | Number of states (do not overwrite, used to work around Dymola 2017 bug) |
Modelica definition
Buildings.ThermalZones.Detailed.FLEXLAB.Data.Constructions.OpaqueConstructions.Roofs.ASHRAE_901_2010Roof
Construction model for a roof minimally compliant with ASHRAE
90.1-2010. Used in test cells X3A, X3B, and XRA
Information
This is a model of a roof which is minimally compliant with ASHRAE 90.1-2010. It is used in the bed X3 and test cell XRA.
Note: This model is currently a work in progress. For more information see the documentation available at Buildings.ThermalZones.Detailed.FLEXLAB.UsersGuide.
Extends from Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (Thermal properties of opaque constructions).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nLay | 3 | Number of layers |
| Material | material[nLay] | {Buildings.HeatTransfer.Data... | Layer by layer declaration of material, starting from outside to room-side |
| Emissivity | absIR_a | 0.9 | Infrared absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absIR_b | 0.9 | Infrared absorptivity of surface b (usually room-facing surface) [1] |
| Emissivity | absSol_a | 0.5 | Solar absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absSol_b | 0.5 | Solar absorptivity of surface b (usually room-facing surface) [1] |
| SurfaceRoughness | roughness_a | Buildings.HeatTransfer.Types... | Exterior surface roughness |
| Advanced | |||
| Integer | nSta[nLay] | {material[i].nSta for i in 1... | Number of states (do not overwrite, used to work around Dymola 2017 bug) |
Modelica definition
Buildings.ThermalZones.Detailed.FLEXLAB.Data.Constructions.OpaqueConstructions.Roofs.CA_T24_2013Roof
Construction model for a roof minimally compliant with CA Title 24-2013.
Used in test cells X2A and X2B
Information
This is a model of a roof construction which is minimally compliant with CA Title 24-2013. It is used in test bed 90X2.
Note: This model is currently a work in progress. For more information see the documentation available at Buildings.ThermalZones.Detailed.FLEXLAB.UsersGuide.
Extends from Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (Thermal properties of opaque constructions).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | nLay | 3 | Number of layers |
| Material | material[nLay] | {Buildings.HeatTransfer.Data... | Layer by layer declaration of material, starting from outside to room-side |
| Emissivity | absIR_a | 0.9 | Infrared absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absIR_b | 0.9 | Infrared absorptivity of surface b (usually room-facing surface) [1] |
| Emissivity | absSol_a | 0.5 | Solar absorptivity of surface a (usually outside-facing surface) [1] |
| Emissivity | absSol_b | 0.5 | Solar absorptivity of surface b (usually room-facing surface) [1] |
| SurfaceRoughness | roughness_a | Buildings.HeatTransfer.Types... | Exterior surface roughness |
| Advanced | |||
| Integer | nSta[nLay] | {material[i].nSta for i in 1... | Number of states (do not overwrite, used to work around Dymola 2017 bug) |