modelHeatTransferDirectedHeatTransfer
Extends from AixLib.Obsolete.YearIndependent.FastHVAC.Components.Storage.BaseClasses.PartialHeatTransferLayers.
Information
Overview
Model for heat transfer between buffer storage layers. Models conductance of water. Buoyancy and conduction are considered individually
Sources
Total massflow by buoyancy is calculated by a fixed time Tau, a fixed dT_ref and the actual temperature difference between the layers dT. The partial mass ratio that goes to each layer is calculated by a selectable predefined profile (buoyancyDistribution).
Model was developed by Christian Grozescu in his master thesis Extension of Thermal Storage Models for Energy System Simulations, 2017
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Integer | n (from PartialHeatTransferLayers) | 3 | |
| FastHVAC.Media.BaseClasses.MediumSimple | Medium (from PartialHeatTransferLayers) | Medium model | |
| AixLib.DataBase.Storage.BufferStorageBaseDataDefinition | data (from PartialHeatTransferLayers) | AixLib.DataBase.Storage.Generic_New_2000l() | |
| Modelica.Units.SI.Time | tau | 100 | |
| Modelica.Units.SI.TemperatureDifference | dTref | 1 |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Thermal.HeatTransfer.Interfaces.HeatPort_a | therm (from PartialHeatTransferLayers) |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.HeatFlowRate | Q_flow | Heat flow rate from layer i+1 to i due to heat conduction | |
| Modelica.Units.SI.HeatFlowRate | Q_buoy_abs | Cumulative heat flow rate into the layer due to buoyancy |
Contents
| Name | Description |
|---|---|
| fQbuoy |
Revisions
-
October 19, 2017 David Jansen:
Added informations and commentations to source code and changed names according to AixLib regulations -
March , 2017 Christian Grozescu :
Developed model