1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
|
!
!-----------------------------------------------------------------------
!
!Purpose:
! Fortran-2003 wrapper to calculate Molten Salt thermophysical
! properties using data from the MSTPDB-TP Database
!
!Copyright:
! Copyright (C) 2023 Ecole Polytechnique de Montreal.
! This library is free software; you can redistribute it and/or
! modify it under the terms of the GNU Lesser General Public
! License as published by the Free Software Foundation; either
! version 2.1 of the License, or (at your option) any later version.
!
!Author(s): Cristian Garrido Tamm
!
!-----------------------------------------------------------------------
!
subroutine THMSGT(salt, compo, tp, impx)
! Get the data from MSTDB-TP csv files for the specific salt "salt" with proportions "prop"
use t_saltdata
character*32, intent(in) :: salt, compo ! salt formula and composition
type(tpdata), intent(out) :: tp ! Tupla with Thermophysical properties
integer, intent(in) :: impx
character(len=1000) :: line ! line of the csv file
character(len=255) :: filename = './MSTPDB.data'
integer :: ios, i
! Initialize tp
tp%formula=''
tp%composition=''
! open file
open(18, file=filename, status='old')
! Read file line by line
i= 0
do
i = i + 1
read(18, '(a)', iostat=ios) line
if (ios /= 0) exit
if (impx > 5) write(*,*) "line=", line
if (i .gt. 1) then
read(line,*) tp
if (impx > 5) write(*,*) "tp=", tp
end if
if (tp%formula .eq. salt .and. tp%composition .eq. compo) then
if (impx > 5) write(*,*) "Found!"
exit
end if
end do
if (ios /= 0) then
if (impx > 5) write(*,*) "call xabort here"
write(*,*) 'THMSGT: salt=', salt, 'compo=', compo
call XABORT('Salt not found in MSTDB-TP')
end if
if (impx > 2) then
write(*,*) "tp%formula=", tp%formula
write(*,*) "tp%weight=", tp%weight
write(*,*) "tp%composition=", tp%composition
write(*,*) "tp%Tm=", tp%Tm
write(*,*) "tp%Tb=", tp%Tb
write(*,*) "tp%rhoA=", tp%rhoA
write(*,*) "tp%rhoB=", tp%rhoB
write(*,*) "tp%zmu1A=", tp%zmu1A
write(*,*) "tp%zmu1B=", tp%zmu1B
write(*,*) "tp%zmu2A=", tp%zmu2A
write(*,*) "tp%zmu2B=", tp%zmu2B
write(*,*) "tp%zmu2C=", tp%zmu2C
write(*,*) "tp%zkA=", tp%zkA
write(*,*) "tp%zkB=", tp%zkB
write(*,*) "tp%cpA=", tp%cpA
write(*,*) "tp%cpB=", tp%cpB
write(*,*) "tp%cpC=", tp%cpC
write(*,*) "tp%cpD=", tp%cpD
endif
close(18, status='keep')
end subroutine THMSGT
subroutine THMSST(tp, tboil, impx)
! return the boiling temperature for the molten salts (If it is 0 in the MSTPDB is set to 5000 K)
use t_saltdata
! character*16 :: salt, compo ! salt formula and composition
real, intent(out) :: tboil
integer, intent(in) :: impx
!
type(tpdata), intent(in) :: tp ! Tupla with Thermophysical properties
! get the tpdata object for the specific salt
if (tp%tb.eq.0.0) then
tboil=5000
else
tboil=tp%tb
endif
if (impx > 2) write(6,*) 'THMSST: BOILING TEMPERATURE=',tboil
end subroutine THMSST
subroutine THMSPT(tp, t, zrho, h, zk, zmu, zcp, impx)
! return the remaining thermohydraulics parameters as a function of the temperature (K) for molten salts
use t_saltdata
! character*16 :: salt, compo ! salt formula and composition
real, intent(in) :: t
real, intent(out) :: zrho, h, zk, zmu, zcp
type(tpdata), intent(in) :: tp ! Tupla with Thermophysical properties
integer, intent(in) :: impx
!
if(impx > 2) write(6,*) 'THSMPT: Molten salt thermophysical properties from MSTPDB'
! get the tpdata object for the specific salt
zrho = dens(tp,t)
zk = cond(tp,t)
zmu = visc(tp,t)
zcp = cap(tp,t)
h = zcp*t
if (impx > 2) then
write(*,*) 'WEIGHT =', tp%weight
write(*,*) 'TEMPERATURE =', t, '(K)'
write(*,*) 'DENSITY =', zrho, '(kg/m3)'
write(*,*) 'VISCOSITY =', zmu, '(kg/m2/s)'
write(*,*) 'THERMAL CONDUCTIVITY =', zk, '(W/m/K)'
write(*,*) 'THERMAL CAPACITY =', zcp, '(J/K/kg)'
write(*,*) 'SPECIFIC ENTHALPY =', h, '(J/kg)'
endif
if (zrho <= 0.0) then
call XABORT('THMSPT: NEGATIVE SALT DENSITY.')
endif
if (zk <= 0.0) then
call XABORT('THMSPT: NEGATIVE SALT THERMAL CONDUCTIVITY.')
endif
if (zcp <= 0.0) then
call XABORT('THMSPT: NEGATIVE SALT HEAT CAPACITY.')
endif
end subroutine THMSPT
subroutine THMSH(tp, h, zrho, t, impx)
! return density and temperature given the entalphy
use t_saltdata
! character*16 :: salt, compo ! salt formula and composition
real, intent(in) :: h
real, intent(out) :: zrho, t
type(tpdata), intent(in) :: tp ! Tupla with Thermophysical properties
integer, parameter :: rk=kind(0d0)
integer, parameter :: degree=4
real(rk) :: poly(degree+1), c1, c2, c3, c4, c5
complex(rk) :: roots(degree)
logical :: lfail
integer, intent(in) :: impx
!
if (impx > 3) write(*,*) 'THMSH: Input entalpy h= ',h
! get the tpdata object for the specific salt
! solve polynomial h=CpT => 0 = D*T**4 + C*T**3 + B*T**2 + A*T - h
a = tp%cpA/tp%weight*1000.0
b = tp%cpB/tp%weight*1000.0
c = tp%cpC/tp%weight*1000.0
d = tp%cpD/tp%weight*1000.0
c1 = real(d, 8)
c2 = real(b, 8)
c3 = real(a, 8)
c4 = real(-h, 8)
c5 = real(c, 8)
poly = [c5, c4, c3, c2, c1]
npoly=degree
do i=degree+1,1,-1
if (poly(i) /= 0.) exit
npoly=npoly-1
enddo
if (impx > 3) write(*,*) 'THMSH: Equation ', c1, '*T**4+', c2, '*T**3+', c3, '*T**2+', c4, '*T+', c5
! Note: In cmplx_roots_gen the polynomial is of the form poly(1) x^0 + poly(2) x^1 + poly(3) x^2 + ...
call ALROOT(poly,npoly,roots,lfail)
if(lfail) call XABORT('THMSH: foot finding failure.')
if (impx > 3) write(*,*) 'THMSH: roots= ',roots
do i = 1, degree
if (aimag(roots(i)).eq.0.and.real(roots(i)).gt.0) then
t = real(roots(i),4)
exit
endif
end do
zrho = dens(tp,t)
if (impx > 3) write(*,*) 'THMSH: t = ', t, 'zrho = ',zrho
end subroutine THMSH
|
