Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.BaseClasses
Package with base classes for Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation
Information
This package contains base classes that are used to construct the models in Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.
Extends from Modelica.Icons.BasesPackage (Icon for packages containing base classes).
Package Content
| Name | Description |
|---|---|
 SmallScale_Borefield
|
Borefield data record for the Cimmino and Bernier (2015) experiment |
| SmallScale_Configuration
|
Configuration data record for the Cimmino and Bernier (2015) experiment |
| SmallScale_Filling
|
Filling data record for the Cimmino and Bernier (2015) experiment |
| SmallScale_Soil
|
Soil data record for the Cimmino and Bernier (2015) experiment |
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.BaseClasses.SmallScale_Borefield
Borefield data record for the Cimmino and Bernier (2015) experiment
Information
This record contains the borefield data of the Cimmino and Bernier (2015) experiment.
References
Cimmino, M. and Bernier, M. 2015. Experimental determination of the g-functions of a small-scale geothermal borehole. Geothermics 56: 60-71.
Extends from Buildings.Fluid.Geothermal.Borefields.Data.Borefield.Template (Template for borefield data records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Template | filDat | Buildings.Fluid.Geothermal.B... | Filling data |
| Template | soiDat | Buildings.Fluid.Geothermal.B... | Soil data |
| Template | conDat | Buildings.Fluid.Geothermal.B... | Configuration data |
Modelica definition
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.BaseClasses.SmallScale_Configuration
Configuration data record for the Cimmino and Bernier (2015) experiment
Information
This record contains the configuration data of the Cimmino and Bernier (2015) experiment. Since the model is not adapted to the simulation of small scale boreholes, the borehole dimensions are multiplied by a factor 375 to obtain a scaled-up 150.0 m long borehole.
References
Cimmino, M. and Bernier, M. 2015. Experimental determination of the g-functions of a small-scale geothermal borehole. Geothermics 56: 60-71.
Extends from Buildings.Fluid.Geothermal.Borefields.Data.Configuration.Template (Template for configuration data records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| BoreholeConfiguration | borCon | Types.BoreholeConfiguration.... | Borehole configuration |
| Boolean | use_Rb | false | true if the value borehole thermal resistance Rb should be given and used |
| Real | Rb | 0.0 | Borehole thermal resistance Rb. Only to fill in if known [(m.K)/W] |
| Nominal condition | |||
| MassFlowRate | mBor_flow_nominal | 0.0303/60 | Nominal mass flow rate per borehole [kg/s] |
| MassFlowRate | mBorFie_flow_nominal | mBor_flow_nominal*nBor | Nominal mass flow of borefield [kg/s] |
| Pressure | dp_nominal | 5e4 | Pressure losses for the entire borefield [Pa] |
| Borehole | |||
| Height | hBor | 0.4*375 | Total height of the borehole [m] |
| Radius | rBor | 0.00629*375 | Radius of the borehole [m] |
| Height | dBor | 0.019*375 | Borehole buried depth [m] |
| Integer | nBor | 1 | Total number of boreholes |
| Length | cooBor[:, 2] | {{0,0}} | Cartesian coordinates of the boreholes in meters [m] |
| Tubes | |||
| Radius | rTub | 0.125*0.0254/2*375 | Outer radius of the tubes [m] |
| ThermalConductivity | kTub | 401.0 | Thermal conductivity of the tube [W/(m.K)] |
| Length | eTub | 0.06*0.0254*375 | Thickness of a tube [m] |
| Length | xC | 0.0050/2*375 | Shank spacing, defined as the distance between the center of a pipe and the center of the borehole [m] |
| Advanced | |||
| MassFlowRate | mBor_flow_small | 1E-4*abs(mBor_flow_nominal) | Small mass flow rate for regularization of zero flow [kg/s] |
Modelica definition
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.BaseClasses.SmallScale_Filling
Filling data record for the Cimmino and Bernier (2015) experiment
Information
This record contains the filling data of the Cimmino and Bernier (2015) experiment.
References
Cimmino, M. and Bernier, M. 2015. Experimental determination of the g-functions of a small-scale geothermal borehole. Geothermics 56: 60-71.
Extends from Buildings.Fluid.Geothermal.Borefields.Data.Filling.Template (Template for filling data records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| ThermalConductivity | kFil | 0.262 | Thermal conductivity of the borehole filling material [W/(m.K)] |
| SpecificHeatCapacity | cFil | 745 | Specific heat capacity of the borehole filling material [J/(kg.K)] |
| Density | dFil | 1750 | Density of the borehole filling material [kg/m3] |
| Boolean | steadyState | (cFil < Modelica.Constants.e... | Flag, if true, then material is computed using steady-state heat conduction |
Modelica definition
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Validation.BaseClasses.SmallScale_Soil
Soil data record for the Cimmino and Bernier (2015) experiment
Information
This record contains the soil data of the Cimmino and Bernier (2015) experiment.
References
Cimmino, M. and Bernier, M. 2015. Experimental determination of the g-functions of a small-scale geothermal borehole. Geothermics 56: 60-71.
Extends from Buildings.Fluid.Geothermal.Borefields.Data.Soil.Template (Template for soil data records).
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| ThermalConductivity | kSoi | 0.262 | Thermal conductivity of the soil material [W/(m.K)] |
| SpecificHeatCapacity | cSoi | 745 | Specific heat capacity of the soil material [J/(kg.K)] |
| Density | dSoi | 1750 | Density of the soil material [kg/m3] |
| Boolean | steadyState | (cSoi < Modelica.Constants.e... | Flag, if true, then material is computed using steady-state heat conduction |