.Buildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOW .Buildings.Fluid.Geothermal.ZonedBorefields.Validation.FEFLOWThis package contains validation models that compare the results of the Modelica model with the ones from a finite element model that was simulated with the FEFLOW software.
In all models of this package, the temperatures
TOut are the leaving water temperatures from FEFLOW,
computed with FEFLOW's analytical solution for the borehole heat
transfer. Comparing TOut with the temperatures
TBorFieOut shows good agreement except at the initial
transient at the start of the simulation when the mass flow rate
changes from zero to the design flow rate. The leaving water
temperatures at this initial transient show similar discrepancies
as the comparison of FEFLOW's analytical and numerical solutions
that is presented in the FEFLOW white paper (DHI-WASY 2010). In the
FEFLOW white paper, it is explained that the reason for this
difference is due to the FEFLOW's analytical solution not being
valid for such short-time dynamics. Therefore, the validation of
the Modelica implementation is satisfactory.
DHI-WASY Software FEFLOW. Finite Element Subsurface Flow & Transport Simulation System. White Paper Vol. V. DHI-WASY GmbH. Berlin 2010.
| Name | Description |
|---|---|
 InletTemperaturePulse |
Comparative model validation with FEFLOW for a response to a pulse in inlet temperature |
 MassFlowRatePulse100 |
Comparative model validation with FEFLOW for a pulse response |
 MassFlowRatePulse50 |
Comparative model validation with FEFLOW for a response to a pulse in inlet mass flow rate |
 MassFlowRateStep100 |
Comparative model validation with FEFLOW for a step response |