Buildings.HeatTransfer.Data.OpaqueConstructions

Package with opaque constructions for floors, walls, etc.

Information

Package with material definitions for constructions with one or more layers of material. By convention, layer[1] is facing the outside, and the last layer is facing the room-side. This is the same convention as is used in EnergyPlus and in Window 6.

Package Content

Name Description

Generic Thermal properties of opaque constructions

Insulation100Concrete200 Construction with 100 mm insulation and 200 mm concrete

Brick120 Construction with 120mm brick

Concrete200 Construction with 200mm concrete

Name	Description
Generic	Thermal properties of opaque constructions
Insulation100Concrete200	Construction with 100 mm insulation and 200 mm concrete
Brick120	Construction with 120mm brick
Concrete200	Construction with 200mm concrete

Buildings.HeatTransfer.Data.OpaqueConstructions.Generic

Thermal properties of opaque constructions

Buildings.HeatTransfer.Data.OpaqueConstructions.Generic

Information

Generic record with material definitions for constructions with one or more layers of material. By convention, layer[1] is facing the outside, and the last layer is facing the room-side. This is the same convention as is used in EnergyPlus and in Window 6.

Parameters

Type Name Default Description

Integer nLay Number of layers

Generic material[nLay] Layer by layer declaration of material, starting from outside to room-side

Emissivity epsLW_a 0.9 Long wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsLW_b 0.9 Long wave emissivity of surface b (usually room-facing surface) [1]

Emissivity epsSW_a 0.5 Short wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsSW_b 0.5 Short wave emissivity of surface b (usually room-facing surface) [1]

Type	Name	Default	Description
Integer	nLay		Number of layers
Generic	material[nLay]		Layer by layer declaration of material, starting from outside to room-side
Emissivity	epsLW_a	0.9	Long wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsLW_b	0.9	Long wave emissivity of surface b (usually room-facing surface) [1]
Emissivity	epsSW_a	0.5	Short wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsSW_b	0.5	Short wave emissivity of surface b (usually room-facing surface) [1]

Modelica definition

record Generic "Thermal properties of opaque constructions"
  parameter Integer nLay(min=1, fixed=true) "Number of layers";
  parameter Solids.Generic material[nLay] 
    "Layer by layer declaration of material, starting from outside to room-side";
 final parameter Real R(unit="m2.K/W")=sum(material[:].R) 
    "Thermal resistance per unit area";

 parameter Modelica.SIunits.Emissivity epsLW_a=0.9 
    "Long wave emissivity of surface a (usually outside-facing surface)";
 parameter Modelica.SIunits.Emissivity epsLW_b=0.9 
    "Long wave emissivity of surface b (usually room-facing surface)";
 parameter Modelica.SIunits.Emissivity epsSW_a=0.5 
    "Short wave emissivity of surface a (usually outside-facing surface)";
 parameter Modelica.SIunits.Emissivity epsSW_b=0.5 
    "Short wave emissivity of surface b (usually room-facing surface)";


end Generic;

Buildings.HeatTransfer.Data.OpaqueConstructions.Insulation100Concrete200

Construction with 100 mm insulation and 200 mm concrete

Buildings.HeatTransfer.Data.OpaqueConstructions.Insulation100Concrete200

Parameters

Type Name Default Description

Integer nLay 2 Number of layers

Generic material[nLay] {Solids.InsulationBoard(x=0.... Layer by layer declaration of material, starting from outside to room-side

Emissivity epsLW_a 0.9 Long wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsLW_b 0.9 Long wave emissivity of surface b (usually room-facing surface) [1]

Emissivity epsSW_a 0.5 Short wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsSW_b 0.5 Short wave emissivity of surface b (usually room-facing surface) [1]

Type	Name	Default	Description
Integer	nLay	2	Number of layers
Generic	material[nLay]	{Solids.InsulationBoard(x=0....	Layer by layer declaration of material, starting from outside to room-side
Emissivity	epsLW_a	0.9	Long wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsLW_b	0.9	Long wave emissivity of surface b (usually room-facing surface) [1]
Emissivity	epsSW_a	0.5	Short wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsSW_b	0.5	Short wave emissivity of surface b (usually room-facing surface) [1]

Modelica definition

record Insulation100Concrete200 =
    Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (material={
        Solids.InsulationBoard(x=0.1),Solids.Concrete(x=0.2)}, final nLay=2) 
  "Construction with 100 mm insulation and 200 mm concrete";

Buildings.HeatTransfer.Data.OpaqueConstructions.Brick120

Construction with 120mm brick

Buildings.HeatTransfer.Data.OpaqueConstructions.Brick120

Parameters

Type Name Default Description

Integer nLay 1 Number of layers

Generic material[nLay] {Solids.Brick(x=0.12)} Layer by layer declaration of material, starting from outside to room-side

Emissivity epsLW_a 0.9 Long wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsLW_b 0.9 Long wave emissivity of surface b (usually room-facing surface) [1]

Emissivity epsSW_a 0.5 Short wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsSW_b 0.5 Short wave emissivity of surface b (usually room-facing surface) [1]

Type	Name	Default	Description
Integer	nLay	1	Number of layers
Generic	material[nLay]	{Solids.Brick(x=0.12)}	Layer by layer declaration of material, starting from outside to room-side
Emissivity	epsLW_a	0.9	Long wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsLW_b	0.9	Long wave emissivity of surface b (usually room-facing surface) [1]
Emissivity	epsSW_a	0.5	Short wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsSW_b	0.5	Short wave emissivity of surface b (usually room-facing surface) [1]

Modelica definition

record Brick120 =
    Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (material={
        Solids.Brick(x=0.12)}, final nLay=1) "Construction with 120mm brick";

Buildings.HeatTransfer.Data.OpaqueConstructions.Concrete200

Construction with 200mm concrete

Buildings.HeatTransfer.Data.OpaqueConstructions.Concrete200

Parameters

Type Name Default Description

Integer nLay 1 Number of layers

Generic material[nLay] {Solids.Concrete(x=0.2)} Layer by layer declaration of material, starting from outside to room-side

Emissivity epsLW_a 0.9 Long wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsLW_b 0.9 Long wave emissivity of surface b (usually room-facing surface) [1]

Emissivity epsSW_a 0.5 Short wave emissivity of surface a (usually outside-facing surface) [1]

Emissivity epsSW_b 0.5 Short wave emissivity of surface b (usually room-facing surface) [1]

Type	Name	Default	Description
Integer	nLay	1	Number of layers
Generic	material[nLay]	{Solids.Concrete(x=0.2)}	Layer by layer declaration of material, starting from outside to room-side
Emissivity	epsLW_a	0.9	Long wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsLW_b	0.9	Long wave emissivity of surface b (usually room-facing surface) [1]
Emissivity	epsSW_a	0.5	Short wave emissivity of surface a (usually outside-facing surface) [1]
Emissivity	epsSW_b	0.5	Short wave emissivity of surface b (usually room-facing surface) [1]

Modelica definition

record Concrete200 =
    Buildings.HeatTransfer.Data.OpaqueConstructions.Generic (material={
        Solids.Concrete(x=0.2)}, final nLay=1) 
  "Construction with 200mm concrete";

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