modelFiniteDifference_1Week

Short term validation of ground temperature response model

Extends from Modelica.Icons.Example (Icon for runnable examples).

Information

This example validates the implementation of Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.GroundTemperatureResponse for the evaluation of the borehole wall temperature at a short time scale.

After a short delay, a sinusoidal heat flow rate is applied to borehole heat exchanger. The temperature at the borehole wall evaluated with Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.GroundTemperatureResponse is compared to the temperature obtained with Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.Cylindrical

Parameters

TypeNameDefaultDescription
Modelica.Units.SI.TemperatureT_start283.15Initial soil temperature
Buildings.Fluid.Geothermal.Borefields.Data.Borefield.TemplateborFieDatBorefield parameters

Components

TypeNameDefaultDescription
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.CylindricalsoiHeat conduction in the soil
Modelica.Thermal.HeatTransfer.Sources.PrescribedHeatFlowpreHeaFloPrescribed heat flow to soil for the discretized model
Modelica.Blocks.Sources.SinesineHeat flow signal
Buildings.Fluid.Geothermal.Borefields.BaseClasses.HeatTransfer.GroundTemperatureResponsegroTemResHeat conduction in the soil
Modelica.Blocks.Sources.ConstantgroTemGround temperature signal
Buildings.HeatTransfer.Sources.PrescribedTemperaturepreTemGround temperature for discretized model
Modelica.Blocks.Math.AdddeltaTTemperature difference between borehole with discrete ground and borehole with analytical ground
Modelica.Thermal.HeatTransfer.Sensors.TemperatureSensortemSenDisBorehole wall temperature sensor for the discretized model
Modelica.Blocks.Math.AddTSoiAnaGround temperature from ground response model

Revisions

  • June 13, 2018, by Massimo Cimmino:
    First implementation.