modelHeatConduction1D
Extends from BuildingSystems.HAM.HeatConduction.BaseClasses.HeatConductionGeneral (General model for heat conduction of a body).
Information
This is a model which describes the one-dimensional heat conduction in x-direction within a
cuboid shaped body width the edge length dx, dy and dz
c ρ dx dy dz dT ⁄ dt = Q̇x1 + Q̇x2 + Q̇heatsource,
with the heat flow rates to the borders x1 and x2
Q̇x1/x2; = kx (Tx1/x2 - T).
Here kx is the thermal conductance in the x dimension
kx = 2 λ ⁄ dx dy dz.
c the specific heat capacity, ρ the density, λ the heat conductivity,
Q̇heatsource an optional heat source within the body.
Tx1/x2 are the temperatures on the borders x1/x2
with the area dy dz.
Notes
For problems with 3 dimensional heat conduction,
the extended model
BuildingSystems.HAM.HeatConduction.HeatConduction3D
can be used and combined with other models from the
BuildingSystems library.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| General | |||
| BuildingSystems.HAM.Data.MaterialProperties.BaseClasses.MaterialThermalGeneral | material (from HeatConductionGeneral) | Material of the body | |
| General › Geometry | |||
| Modelica.Units.SI.Length | lengthX (from HeatConductionGeneral) | 1.0 | Length in x dimension |
| Initialization | |||
| Modelica.Units.SI.Temperature | T_start | 293.15 | Start temperature of the thermal node |
Connectors
| Type | Name | Default | Description |
|---|---|---|---|
| BuildingSystems.Interfaces.HeatPort | heatPort_x1 | Heat port in direction x1 | |
| BuildingSystems.Interfaces.HeatPort | heatPort_x2 | Heat port in direction x2 | |
| BuildingSystems.Interfaces.HeatPort | heatPort_source | Optional heat source at the thermal node |
Components
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.Length | lengthY (from HeatConductionGeneral) | 1.0 | Length in y dimension |
| Modelica.Units.SI.Length | lengthZ (from HeatConductionGeneral) | 1.0 | Length in z dimension |
| Modelica.Units.SI.Temperature | T | Temperature of the thermal node |
Revisions
-
April 24, 2019 by Christoph Nytsch-Geusen:
Adaptation to flexible geometries. -
May 23, 2016 by Christoph Nytsch-Geusen:
First implementation.