THERMAL.Tube

COMPONENT Tube

DESCRIPTION:
Unidimensional wall component

CONSTRUCTION PARAMETERS:

NAME	TYPE	DEFAULT	DESCRIPTION	UNITS
n	INTEGER	5	Number of nodes in tube (-)	-

PORTS:

NAME	TYPE	PARAMETERS	DIRECTION	CARDINALITY	DESCRIPTION
s_lvap	PORTS_LIB.analog_signal		OUT		Vapour length output port
s_ngas_in	PORTS_LIB.analog_signal		IN		Number of moles of gas inlet port
s_ngas_out	PORTS_LIB.analog_signal		OUT		Number of moles of gas outlet port
s_p	PORTS_LIB.analog_signal		IN		Total pressure input port
tp_1	PORTS_LIB.thermal	(n = 1)	IN		Tube axial thermal inlet port
tp_N	PORTS_LIB.thermal	(n = 1)	OUT		Tube axial thermal outlet port
tp_vapour	PORTS_LIB.thermal	(n = 1)	IN		Vapour-tube radial thermal inlet port
tp_wall	PORTS_LIB.thermal	(n = n)	OUT		Tube radial thermal outlet port

DATA:

NAME	TYPE	DEFAULT	RANGE	DESCRIPTION	UNITS
A_vap	REAL	0.0001		Fluid cross section area in tube	m^2
D_i	REAL	0.018		Inner diameter of tube	m
D_o	REAL	0.02		Outer diameter of tube	m
TemperatureDependance	BOOLEAN	TRUE		Option to consider or not the temperature depence on the material properties
To	REAL	290		Initial temperature of nodes	K
cp	REAL	500		Wall specific heat if material is None	J/(kg�K)
h	REAL	1000		Vapour-tube heat transfer coefficient	W/(m^2�K)
k	REAL	0.1		Wall conductivity if material is None	W/(m�K)
l	REAL	1		Length of tube	m
mat	ENUM Material	None		Material used for tube	-
rho	REAL	1000		Wall density if material is None	kg/m^3

DECLS:

NAME	TYPE	INITIAL	RANGE	DESCRIPTION	UNITS
A	REAL			Cross sectional area of tube wall	m^2
A_i	REAL			Cross sectional inner area of tube	m^2
P_inner	REAL			Perimeter of inner section	m
P_outer	REAL			Perimeter of outer section	m
T[n]	REAL			Temperature of nodes	K
chi[n]	REAL			Vapour-gas moles ratio at each node section	-
cp_var[n]	REAL			Specific heat of nodes	J/(kg�K)
dx	REAL			Node length	m
icpk[n]	INTEGER			Pointer to last interval of interpolation
ik_1	INTEGER			Pointer to last interval of interpolation
ik_N	INTEGER			Pointer to last interval of interpolation
it0	INTEGER			Pointer to To
k_1	REAL			Thermal conductivity in tp_1	W/(m�K)
k_N	REAL			Thermal conductivity in tp_N	W/(m�K)
k_var[n]	REAL			Thermal conductivity of nodes	W/(m�K)
l_vap	REAL			Vapour length measured from start of the tube (m)	m
q[n + 1]	REAL			Axial heat flow through nodes	W
q_vapour[n]	REAL			Heat flow from vapour to each node	W
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