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THERMAL.Wall


COMPONENT Wall

ICON:


DESCRIPTION:
1D thermal model of a wall

CONSTRUCTION PARAMETERS:
NAME  TYPE  DEFAULT  DESCRIPTION  UNITS  
n INTEGER  1 Dimension of thermal port - 
nodes INTEGER  10 Number of nodes of wall discretization - 

PORTS:
NAME  TYPE  PARAMETERS  DIRECTION  CARDINALITY  DESCRIPTION  
tp_in PORTS_LIB.thermal  (n = n)  IN   Inlet port 
tp_out PORTS_LIB.thermal  (n = n)  OUT   Outlet port 

DATA:
NAME  TYPE  DEFAULT  RANGE  DESCRIPTION  UNITS  
A REAL  1  Area of the wall m^2 
TemperatureDependance BOOLEAN   TRUE   Flag to consider temperature dependance of the material properties  
To REAL  290  Constant initial temperature of nodes if init_mode = Constant_Temp K 
To_linear[2] REAL  { 290,290}   Initial temperatures at both side if init_mode = Linear_Temp K 
To_table TABLE_1D    Table with initial wall temperature versus non-dimensional position if init_mode = Table_Temp (K) K 
cp REAL  500  Wall Specific heat if material is None J/(kg�K) 
e REAL  0.1  Wall thickness m 
init_mode ENUM WALL_INIT_MODE Constant_Temp  Option for the initiliazation of the nodal temperatures  
k REAL  0.1  Wall conductivity if material is None W/(m�K) 
mat ENUM Material None  Material - 
rho REAL  1000  Wall density if material is None kg/m^3 

DECLS:
NAME  TYPE  INITIAL  RANGE  DESCRIPTION  UNITS  
Asme_DT1 REAL    Linear gradient temperature K 
Asme_DT2 REAL    Non linear gradient temperature K 
Asme_T_ave REAL    Average temperature K 
F CONST REAL  0.0001  Thermal capacity ratio assigned to the surface - 
T[nodes + 2] REAL    Nodal temperature K 
cp_var[nodes + 2] REAL    Specific heat of nodes J/(kg�K) 
dx REAL    Node width or nodal distance m 
icpk[nodes + 2] INTEGER    Last table position in cp calculation  
ito INTEGER    Pointer to time interval for To in Property Tables  
k_eq[nodes + 1] REAL    Equivalent Thermal Condictivities between nodes W/(m�K) 
k_var[nodes + 2] REAL    Thermal conductivities of the nodes W/(m�K) 
q[nodes + 1] REAL    Heat flow through nodes W 
rho_var REAL    Density of wall material kg/m^3 
FORMULATION:






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