Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx
900 series of ANSI/ASHRAE BESTEST
Information
This package contains the validation cases of the 900 series of the BESTEST validation (ANSI/ASHRAE 2007).
References
ANSI/ASHRAE. 2007. ANSI/ASHRAE Standard 140-2007, Standard Method of Test for the Evaluation of Building Energy Analysis Computer Programs.
Extends from Modelica.Icons.ExamplesPackage (Icon for packages containing runnable examples).
Package Content
| Name | Description |
|---|---|
 Case900
|
Case 600, but with high thermal mass |
| Case900FF
|
Case 600FF, but with high thermal mass |
| Case920
|
Case 900, but with windows on East and West side walls |
| Case940
|
Case 900, but with heating schedule |
| Case950
|
Case 900, but cooling based on schedule, night venting, and no heating |
| Case950FF
|
Case 900, but no heating, no cooling, and ventilation as in case 650 |
| Case960
|
Case 600, but with an unconditioned sun-space |
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900
Case 600, but with high thermal mass
Information
This model is used for the basic test case 900 of the BESTEST validation suite. Case 900 is a heavy-weight building with room temperature control set to 20°C for heating and 27°C for cooling. The room has no shade and a window that faces south.
Extends from Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (Case 600FF, but with dual-setpoint for heating and cooling).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case900 "Case 600, but with high thermal mass"
extends Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600(
matExtWal = extWalCase900,
matFlo = floorCase900,
staRes(
annualHea(Min=1.170*3.6e9, Max=2.041*3.6e9, Mean=1.745*3.6e9),
annualCoo(Min=-2.132*3.6e9, Max=-3.415*3.6e9, Mean=-2.678*3.6e9),
peakHea(Min=2.850*1000, Max=3.797*1000, Mean=3.506*1000),
peakCoo(Min=-2.888*1000, Max=-3.871*1000, Mean=-3.390*1000)));
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.ExteriorWallCase900
extWalCase900 "Exterior wall";
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.FloorCase900
floorCase900 "Floor";
end Case900;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900FF
Case 600FF, but with high thermal mass
Information
This model is used for the test case 900FF of the BESTEST validation suite. Case 900FF is a heavy-weight building. The room temperature is free floating.
Extends from Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF (Basic test with light-weight construction and free floating temperature).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case900FF "Case 600FF, but with high thermal mass"
extends Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600FF
(
matExtWal = extWalCase900,
matFlo = floorCase900,
staRes(
minT( Min=-6.4+273.15, Max=-1.6+273.15, Mean=-4.2+273.15),
maxT( Min=41.6+273.15, Max=44.8+273.15, Mean=43.1+273.15),
meanT(Min=24.5+273.15, Max=25.9+273.15, Mean=25.2+273.15)));
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.ExteriorWallCase900
extWalCase900 "Exterior wall";
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.FloorCase900
floorCase900 "Floor";
end Case900FF;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case920
Case 900, but with windows on East and West side walls
Information
This model is the case 920 of the BESTEST validation suite. Case 920 differs from case 900 in that the west and east facing walls have a window, but there is no window in the south facing wall.
Extends from Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900 (Case 600, but with high thermal mass).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case920 "Case 900, but with windows on East and West side walls"
extends Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case900(
roo(
nConExtWin=2,
datConExtWin(
layers={matExtWal, matExtWal},
each A=6*2.7,
glaSys={window600, window600},
each wWin=3,
each hWin=2,
each fFra=0.001,
each til=Z_,
azi={W_,E_}),
nConExt=3,
datConExt(
layers={roof,matExtWal,matExtWal},
A={48,8*2.7,8*2.7},
til={C_,Z_,Z_},
azi={S_,S_,N_})),
staRes(
annualHea(Min=3.313*3.6e9, Max=4.300*3.6e9, Mean=3.973*3.6e9),
annualCoo(Min=-1.840*3.6e9, Max=-3.092*3.6e9, Mean=-2.552*3.6e9),
peakHea(Min=3.308*1000, Max=4.061*1000, Mean=3.804*1000),
peakCoo(Min=-2.385*1000, Max=-3.505*1000, Mean=-3.077*1000)));
end Case920;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case940
Case 900, but with heating schedule
Information
This model is used for the basic test case 940 of the BESTEST validation suite. Case940 is the same as Case900, but with the following modifications:
- From 2300 hours to 0700 hours, heat = on if zone temperature is below 10°C
- From 0700 hours to 2300 hours, heat = on if zone temperature is above 20°C
- All hours, cool = on if zone temperature below 27°C
- Otherwise, mechanical equipment is off.
Extends from Case900 (Case 600, but with high thermal mass).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case940 "Case 900, but with heating schedule"
extends Case900(
TSetHea(table=[ 0, 273.15 + 10;
7*3600, 273.15 + 10;
7*3600, 273.15 + 20;
23*3600, 273.15 + 20;
23*3600,273.15 + 10;
24*3600,273.15 + 10]),
staRes(
annualHea(Min=0.793*3.6e9, Max=1.411*3.6e9, Mean=1.160*3.6e9),
annualCoo(Min=-2.079*3.6e9, Max=-3.241*3.6e9, Mean=-2.578*3.6e9),
peakHea(Min=3.980*1000, Max=6.428*1000, Mean=5.494*1000),
peakCoo(Min=-2.886*1000, Max=-3.871*1000, Mean=-1.340*1000)));
end Case940;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950
Case 900, but cooling based on schedule, night venting, and no heating
Information
This model is used for the test case 950 of the BESTEST validation suite. Case950 is the same as Case900, but with the following modifications:
- From 1800 hours to 0700 hours, vent fan = on
- From 0700 hours to 1800 hours, vent fan = off
- Heating is always off
- From 0700 hours to 1800 hours, cooling is on if zone temperature > 27°C, otherwise cool = off.
- From 1800 hours to 0700 hours, cooling is always off.
- Ventilation fan capacity is 1703.16 standard m3/h (in addition to specified infiltration rate).
- No waste heat from fan.
Extends from Case900 (Case 600, but with high thermal mass).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case950
"Case 900, but cooling based on schedule, night venting, and no heating"
extends Case900(
TSetHea(table=[0, 273.15 -200]),
TSetCoo(table=[ 0, 273.15+100;
7*3600, 273.15+100;
7*3600, 273.15+27;
18*3600, 273.15+27;
18*3600, 273.15+100;
24*3600, 273.15+100]),
staRes(
annualHea(Min=0*3.6e9, Max=0*3.6e9, Mean=0*3.6e9),
annualCoo(Min=-0.387*3.6e9, Max=-0.921*3.6e9, Mean=-0.605*3.6e9),
peakHea(Min=0*1000, Max=0*1000, Mean=0*1000),
peakCoo(Min=-2.033*1000, Max=-3.170*1000, Mean=-2.674*1000)),
gaiHea(k=0),
multiSum(nu=2));
BaseClasses.DaySchedule vent(table=[ 0, -1703.16/3600;
7*3600, -1703.16/3600;
7*3600, 0;
18*3600, 0;
18*3600, -1703.16/3600;
24*3600, -1703.16/3600])
"Ventilation air flow rate";
equation
connect(multiSum.u[2], vent.y[1]);
end Case950;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case950FF
Case 900, but no heating, no cooling, and ventilation as in case 650
Information
This model is used for the test case 950FF of the BESTEST validation suite. Case 950FF is identical to case 950, except that there is no heating and no cooling.
Extends from Case900FF (Case 600FF, but with high thermal mass).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | extWalCase900 | Exterior wall |
| Generic | matFlo | floorCase900 | Floor |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case950FF
"Case 900, but no heating, no cooling, and ventilation as in case 650"
extends Case900FF(
staRes(
minT( Min=-20.2+273.15, Max=-18.6+273.15, Mean=-19.6+273.15),
maxT( Min=35.5+273.15, Max=38.5+273.15, Mean=36.5+273.15),
meanT(Min=14.0+273.15, Max=15.0+273.15, Mean=14.4+273.15)),
multiSum(nu=2));
BaseClasses.DaySchedule vent(table=[ 0, -1703.16/3600;
7*3600, -1703.16/3600;
7*3600, 0;
18*3600, 0;
18*3600, -1703.16/3600;
24*3600, -1703.16/3600])
"Ventilation air flow rate";
equation
connect(multiSum.u[2],vent.y[1]);
end Case950FF;
Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases9xx.Case960
Case 600, but with an unconditioned sun-space
Information
This model is used for the test case 960 of the BESTEST validation suite. Case 960 is a two zones building, whereas the south-facing zone is an unconditioned sun-space.
Extends from Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600 (Case 600FF, but with dual-setpoint for heating and cooling).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Angle | S_ | Buildings.Types.Azimuth.S | Azimuth for south walls [rad] |
| Angle | E_ | Buildings.Types.Azimuth.E | Azimuth for east walls [rad] |
| Angle | W_ | Buildings.Types.Azimuth.W | Azimuth for west walls [rad] |
| Angle | N_ | Buildings.Types.Azimuth.N | Azimuth for north walls [rad] |
| Angle | C_ | Buildings.Types.Tilt.Ceiling | Tilt for ceiling [rad] |
| Angle | F_ | Buildings.Types.Tilt.Floor | Tilt for floor [rad] |
| Angle | Z_ | Buildings.Types.Tilt.Wall | Tilt for wall [rad] |
| Integer | nConExtWin | 1 | Number of constructions with a window |
| Integer | nConBou | 1 | Number of surface that are connected to constructions that are modeled inside the room |
| Generic | matExtWal | Exterior wall | |
| Generic | matFlo | Floor | |
| Generic | soil | Soil properties | |
| Generic | roof | Roof | |
| Brick120 | matLayPar | matLayPar( mater... | Construction material for partition walls |
| ExteriorWallCase900 | extWalCase900 | Exterior wall | |
| FloorCase900 | floorCase900 | Floor |
Connectors
| Type | Name | Description |
|---|---|---|
| Bus | weaBus |
Modelica definition
model Case960 "Case 600, but with an unconditioned sun-space"
extends Buildings.ThermalZones.Detailed.Validation.BESTEST.Cases6xx.Case600(
roo(
nConExt=4,
datConExt(
layers={roof,matExtWal,matExtWal,matExtWal},
A={48,6*2.7,6*2.7,8*2.7},
til={C_,Z_,Z_,Z_},
azi={S_,W_,E_,N_}),
nConExtWin=0,
datConExtWin(A={0}, hWin={0}, wWin={0}),
nSurBou=1,
surBou(
each A=8*2.7,
each absIR=0.9,
each absSol=0.6,
each til=Buildings.Types.Tilt.Wall)),
souInf(nPorts=2),
staRes(
annualHea(Min=2.311*3.6e9, Max=3.373*3.6e9, Mean=2.846*3.6e9),
annualCoo(Min=-0.411*3.6e9, Max=-0.803*3.6e9, Mean=-0.618*3.6e9),
peakHea(Min=2.410*1000, Max=2.863*1000, Mean=2.701*1000),
peakCoo(Min=-0.953*1000, Max=-1.404*1000, Mean=-1.212*1000)));
Buildings.HeatTransfer.Conduction.MultiLayer
parWal(layers=matLayPar, A=8*2.7,
stateAtSurface_a=true,
stateAtSurface_b=true) "Partition wall between the two rooms";
parameter Buildings.HeatTransfer.Data.OpaqueConstructions.Brick120
matLayPar(material={
Buildings.HeatTransfer.Data.Solids.Generic(
x=0.2,
k=0.510,
c=1000,
d=1400)}) "Construction material for partition walls";
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.ExteriorWallCase900
extWalCase900 "Exterior wall";
parameter Buildings.ThermalZones.Detailed.Validation.BESTEST.Data.FloorCase900
floorCase900 "Floor";
Buildings.ThermalZones.Detailed.MixedAir sunSpa(
redeclare package Medium = MediumA,
hRoo=2.7,
nPorts=3,
energyDynamics=Modelica.Fluid.Types.Dynamics.FixedInitial,
intConMod=Buildings.HeatTransfer.Types.InteriorConvection.Temperature,
extConMod=Buildings.HeatTransfer.Types.ExteriorConvection.TemperatureWind,
nConPar=0,
nConExt=3,
datConExt(
layers={roof,extWalCase900,extWalCase900},
A={8*2,2*2.7,2*2.7},
til={C_,Z_,Z_},
azi={S_,W_,E_}),
nSurBou=1,
surBou(
each A=8*2.7,
each absIR=0.9,
each absSol=0.6,
each til=Buildings.Types.Tilt.Wall),
nConExtWin=1,
datConExtWin(
layers={extWalCase900},
A={8*2.7},
glaSys={window600},
wWin={2*3},
hWin={2},
fFra={0.001},
til={Z_},
azi={S_}),
nConBou=1,
datConBou(
layers={floorCase900},
each A=2*8,
each til=F_),
AFlo=16,
lat=0.69464104229374) "Room model for sun-space";
Modelica.Blocks.Sources.Constant qConGai_flow1(k=0) "Convective heat gain";
Modelica.Blocks.Sources.Constant qRadGai_flow1(k=0) "Radiative heat gain";
Modelica.Blocks.Routing.Multiplex3 multiplex3_2;
Modelica.Blocks.Sources.Constant qLatGai_flow1(k=0) "Latent heat gain";
Buildings.HeatTransfer.Conduction.SingleLayer soiSunSpa(
material=soil,
steadyStateInitial=true,
A=16,
T_a_start=283.15,
T_b_start=283.75) "2m deep soil (per definition on p.4 of ASHRAE 140-2007)";
Buildings.Fluid.Sources.MassFlowSource_T sinInf2(
redeclare package Medium = MediumA,
m_flow=1,
use_m_flow_in=true,
use_T_in=false,
use_X_in=false,
use_C_in=false,
nPorts=1) "Sink model for sunspace infiltration";
Modelica.Blocks.Sources.Constant InfiltrationRate1(k=-16*2.7*0.5/3600)
"0.41 ACH adjusted for the altitude (0.5 at sea level)";
Modelica.Blocks.Math.Product product1;
Buildings.Fluid.Sensors.Density density1(redeclare package Medium = MediumA)
"Air density inside the building";
Modelica.Thermal.HeatTransfer.Sources.FixedTemperature TSoiSunSpa[nConBou](
each T=283.15) "Boundary condition for construction";
Fluid.FixedResistances.PressureDrop heaCoo1(
redeclare package Medium = MediumA,
allowFlowReversal=false,
m_flow_nominal=48*2.7*0.41/3600*1.2,
dp_nominal=1,
linearized=true,
from_dp=true) "Heater and cooler";
equation
connect(sunSpa.uSha, replicator.y);
connect(parWal.port_a, roo.surf_surBou[1]);
connect(parWal.port_b, sunSpa.surf_surBou[1]);
connect(sunSpa.surf_conBou[1], soiSunSpa.port_b);
connect(TSoiSunSpa[1].port, soiSunSpa.port_a);
connect(weaDat.weaBus, sunSpa.weaBus);
connect(qRadGai_flow1.y, multiplex3_2.u1[1]);
connect(qConGai_flow1.y, multiplex3_2.u2[1]);
connect(qLatGai_flow1.y, multiplex3_2.u3[1]);
connect(multiplex3_2.y, sunSpa.qGai_flow);
connect(InfiltrationRate1.y, product1.u1);
connect(density1.d, product1.u2);
connect(product1.y, sinInf2.m_flow_in);
connect(heaCoo1.port_b, sunSpa.ports[1]);
connect(sinInf2.ports[1], sunSpa.ports[2]);
connect(density1.port, sunSpa.ports[3]);
connect(souInf.ports[2], heaCoo1.port_a);
end Case960;