THERMAL Home | Components | Ports | Classes | Functions | Enumeratives | Global Variables

THERMAL.Cylinder



COMPONENT Cylinder

ICON:


DESCRIPTION:
2D thermal model of a cylinder wall

CONSTRUCTION PARAMETERS:
NAME  TYPE  DEFAULT  DESCRIPTION  UNITS  
nr INTEGER  Number of radial nodes  
nz INTEGER  Number of axial nodes  

PORTS:
NAME  TYPE  PARAMETERS  DIRECTION  CARDINALITY  DESCRIPTION  
tpr_in PORTS_LIB.thermal  (n = nz)  IN   Radial inlet port 
tpr_out PORTS_LIB.thermal  (n = nz)  OUT   Radial outlet port 
tpz_in PORTS_LIB.thermal  (n = nr)  IN   Axial inlet port 
tpz_out PORTS_LIB.thermal  (n = nr)  OUT   Axial outlet port 

DATA:
NAME  TYPE  DEFAULT  RANGE  DESCRIPTION  UNITS  
Di REAL  0.1  Inside diameter 
Do REAL  0.12  Outside diameter 
REAL   Length 
TemperatureDependance BOOLEAN   TRUE   Option to consider or not the temperature depence on the material properties  
To REAL  290  Constant initial temperature of nodes if init_mode = Constant_Temp 
To_linear[2] REAL  { 290,290}   Initial temperatures at both side if init_mode = Linear_Temp 
To_table TABLE_1D    Table with initial wall temperature versus non-dimensional position if init_mode = Table_Temp (K) 
cp REAL  500  Wall Specific heat if mat=None J/(kg�K) 
init_mode ENUM WALL_INIT_MODE Constant_Temp  Option for the initiliazation of the nodal temperatures  
REAL  0.1  Wall conductivity if mat=None W/(m�K) 
mat ENUM Material None  Material 
num REAL   Number of parallel tubes 
rho REAL  1000  Wall density if mat=None kg/m^3 

DECLS:
NAME  TYPE  INITIAL  RANGE  DESCRIPTION  UNITS  
C_axi[nr,nz + 1] REAL    Axial equivalent conductance between the thermal nodes W/K 
C_rad[nr + 1,nz] REAL    Radial equivalent conductance between the thermal nodes W/K 
CONST REAL  0.0001  Thermal capacity ratio assigned to the surface 
T[nr,nz] REAL    Nodal temperature 
V[nr,nz] REAL    Nodal volume m^3 
cp_tpr[2,nz] REAL    Nodal specific heat of outer-inner skin J/(kg�K) 
cp_tpz[nr,2] REAL    Nodal specific heat of first-last section skin J/(kg�K) 
cp_var[nr,nz] REAL    Nodal specific heat J/(kg�K) 
dr REAL    Nodal distance in r 
dz REAL    Nodal distance in z 
icpk[nr,nz] INTEGER    Pointer to last interpolation interval for each node  
icpk_tpr[2,nz] INTEGER    Pointer to last interpolation interval for each radial port node  
icpk_tpz[nr,2] INTEGER    Pointer to last interpolation interval for each axial port node  
ito INTEGER    Pointer to time interval for To in Property Tables  
k_var[nr,nz] REAL    Nodal thermal conductivities W/(m�K) 
qr[nr + 1,nz] REAL    Heat flows between nodes in radial direction 
qz[nr,nz + 1] REAL    Heat flows between nodes in axial direction 
rho_var REAL    Density of wall material kg/m^3 
FORMULATION:






Document generated automatically with EcosimPro Version: 5.4.14 Date: 2015:02:02 Time: 10:24:21