Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Your Model is missing the construction it self. you need to go back to the example file you used (1ZoneUncontrolled.idf) and copy the following lines into your model:
Material:NoMass,
R13LAYER, !- Name
Rough, !- Roughness
2.290965, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material:NoMass,
R31LAYER, !- Name
Rough, !- Roughness
5.456, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material,
C5 - 4 IN HW CONCRETE, !- Name
MediumRough, !- Roughness
0.1014984, !- Thickness {m}
1.729577, !- Conductivity {W/m-K}
2242.585, !- Density {kg/m3}
836.8000, !- Specific Heat {J/kg-K}
0.9000000, !- Thermal Absorptance
0.6500000, !- Solar Absorptance
0.6500000; !- Visible Absorptance
Construction,
R13WALL, !- Name
R13LAYER; !- Outside Layer
Construction,
FLOOR, !- Name
C5 - 4 IN HW CONCRETE; !- Outside Layer
Construction,
ROOF31, !- Name
R31LAYER; !- Outside Layer
Zone,
ZONE ONE, !- Name
0, !- Direction of Relative North {deg}
0, !- X Origin {m}
0, !- Y Origin {m}
0, !- Z Origin {m}
1, !- Type
1, !- Multiplier
autocalculate, !- Ceiling Height {m}
autocalculate; !- Volume {m3}
ScheduleTypeLimits,
Fraction, !- Name
0.0, !- Lower Limit Value
1.0, !- Upper Limit Value
CONTINUOUS; !- Numeric Type
GlobalGeometryRules,
UpperLeftCorner, !- Starting Vertex Position
CounterClockWise, !- Vertex Entry Direction
World; !- Coordinate System
BuildingSurface:Detailed,
Zn001:Wall001, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
0,0,4.572000, !- X,Y,Z ==> Vertex 1 {m}
0,0,0, !- X,Y,Z ==> Vertex 2 {m}
15.24000,0,0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,0,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall002, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,0,4.572000, !- X,Y,Z ==> Vertex 1 {m}
15.24000,0,0, !- X,Y,Z ==> Vertex 2 {m}
15.24000,15.24000,0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,15.24000,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall003, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,15.24000,4.572000, !- X,Y,Z ==> Vertex 1 {m}
15.24000,15.24000,0, !- X,Y,Z ==> Vertex 2 {m}
0,15.24000,0, !- X,Y,Z ==> Vertex 3 {m}
0,15.24000,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall004, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
0,15.24000,4.572000, !- X,Y,Z ==> Vertex 1 {m}
0,15.24000,0, !- X,Y,Z ==> Vertex 2 {m}
0,0,0, !- X,Y,Z ==> Vertex 3 {m}
0,0,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Flr001, !- Name
Floor, !- Surface Type
FLOOR, !- Construction Name
ZONE ONE, !- Zone Name
Adiabatic, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
NoSun, !- Sun Exposure
NoWind, !- Wind Exposure
1.000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,0.000000,0.0, !- X,Y,Z ==> Vertex 1 {m}
0.000000,0.000000,0.0, !- X,Y,Z ==> Vertex 2 {m}
0.000000,15.24000,0.0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,15.24000,0.0; !- X,Y,Z ==> Vertex 4 {m}
After you do that you need to invoke Ideal Load Air System so the temperature in the building would not run freely to extreems. Don't worry about HVAC consumption since it will be registered as District Cooling and Heating. To do so you can take a look at GeneratorswithPV.idf example file.
One last think take into account that when you assigned the PV to the roof it is flat on the roof which is non optimal. You can create a shading surface on top of the roof facing the South and slanted according with your site's latitude to have it optimized.
After doing that you should end up with something like that:
| | 2 | No.2 Revision |
Your Model is missing the construction it self. you need to go back to the example file you used (1ZoneUncontrolled.idf) and copy the following lines into your model:
Material:NoMass,
R13LAYER, !- Name
Rough, !- Roughness
2.290965, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material:NoMass,
R31LAYER, !- Name
Rough, !- Roughness
5.456, !- Thermal Resistance {m2-K/W}
0.9000000, !- Thermal Absorptance
0.7500000, !- Solar Absorptance
0.7500000; !- Visible Absorptance
Material,
C5 - 4 IN HW CONCRETE, !- Name
MediumRough, !- Roughness
0.1014984, !- Thickness {m}
1.729577, !- Conductivity {W/m-K}
2242.585, !- Density {kg/m3}
836.8000, !- Specific Heat {J/kg-K}
0.9000000, !- Thermal Absorptance
0.6500000, !- Solar Absorptance
0.6500000; !- Visible Absorptance
Construction,
R13WALL, !- Name
R13LAYER; !- Outside Layer
Construction,
FLOOR, !- Name
C5 - 4 IN HW CONCRETE; !- Outside Layer
Construction,
ROOF31, !- Name
R31LAYER; !- Outside Layer
Zone,
ZONE ONE, !- Name
0, !- Direction of Relative North {deg}
0, !- X Origin {m}
0, !- Y Origin {m}
0, !- Z Origin {m}
1, !- Type
1, !- Multiplier
autocalculate, !- Ceiling Height {m}
autocalculate; !- Volume {m3}
ScheduleTypeLimits,
Fraction, !- Name
0.0, !- Lower Limit Value
1.0, !- Upper Limit Value
CONTINUOUS; !- Numeric Type
GlobalGeometryRules,
UpperLeftCorner, !- Starting Vertex Position
CounterClockWise, !- Vertex Entry Direction
World; !- Coordinate System
BuildingSurface:Detailed,
Zn001:Wall001, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
0,0,4.572000, !- X,Y,Z ==> Vertex 1 {m}
0,0,0, !- X,Y,Z ==> Vertex 2 {m}
15.24000,0,0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,0,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall002, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,0,4.572000, !- X,Y,Z ==> Vertex 1 {m}
15.24000,0,0, !- X,Y,Z ==> Vertex 2 {m}
15.24000,15.24000,0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,15.24000,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall003, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,15.24000,4.572000, !- X,Y,Z ==> Vertex 1 {m}
15.24000,15.24000,0, !- X,Y,Z ==> Vertex 2 {m}
0,15.24000,0, !- X,Y,Z ==> Vertex 3 {m}
0,15.24000,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Wall004, !- Name
Wall, !- Surface Type
R13WALL, !- Construction Name
ZONE ONE, !- Zone Name
Outdoors, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
SunExposed, !- Sun Exposure
WindExposed, !- Wind Exposure
0.5000000, !- View Factor to Ground
4, !- Number of Vertices
0,15.24000,4.572000, !- X,Y,Z ==> Vertex 1 {m}
0,15.24000,0, !- X,Y,Z ==> Vertex 2 {m}
0,0,0, !- X,Y,Z ==> Vertex 3 {m}
0,0,4.572000; !- X,Y,Z ==> Vertex 4 {m}
BuildingSurface:Detailed,
Zn001:Flr001, !- Name
Floor, !- Surface Type
FLOOR, !- Construction Name
ZONE ONE, !- Zone Name
Adiabatic, !- Outside Boundary Condition
, !- Outside Boundary Condition Object
NoSun, !- Sun Exposure
NoWind, !- Wind Exposure
1.000000, !- View Factor to Ground
4, !- Number of Vertices
15.24000,0.000000,0.0, !- X,Y,Z ==> Vertex 1 {m}
0.000000,0.000000,0.0, !- X,Y,Z ==> Vertex 2 {m}
0.000000,15.24000,0.0, !- X,Y,Z ==> Vertex 3 {m}
15.24000,15.24000,0.0; !- X,Y,Z ==> Vertex 4 {m}
After you do that you need to invoke Ideal Load Air System so that the temperature in the building would not run freely to extreems. Don't worry about HVAC consumption since it will be registered as District Cooling and Heating. To do so you can take a look at GeneratorswithPV.idf example file.
One last think take into account that when you assigned the PV to the roof it is flat on the roof which is non optimal. You can create a shading surface on top of the roof facing the South and slanted according with your site's latitude to have it optimized.
After doing that you should end up with something like that:
