methane.fld

一个关于物性计算的软件

methane            !short name
74-82-8            !CAS number
methane            !full name
CH4                !chemical formula
R-50               !synonym
16.0428            !molecular weight [g/mol]
90.6941            !triple point temperature [K]
111.667            !normal boiling point [K]
190.564            !critical temperature [K]
4599.2             !critical pressure [kPa]
10.139             !critical density [mol/L]
0.01142            !acentric factor
0.0                !dipole moment [Debye]
NBP                !default reference state
6.1                !version number

! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado
! 01-22-97 EWL, original version
! 01-31-97  MM, modify ncoeff line for FEQ to accommodate critical region terms
! 02-20-97  MM, add default reference state; change acentric factor to that calc by EOS
! 02-26-97  MM, add version number (future use)
! 03-11-97  MM, modify ECS-transport to new format
! 10-24-97  MM, read in f_int term in Eucken correlation in ECS method for t.c.
!               change reference fluid EOS for ECS-transport from BWR to FEQ
! 04-06-98 EWL, add power of tau in exponential part of critical region terms
! 06-24-98 EWL, add Younglove and Ely BWR equation of state
! 11-13-98 EWL, update format to version 6.1
! 11-13-98 EWL, coefficient EV(8) in VS2 set to rhoc of BWR, not of FEQ
! 11-18-98 EWL, add equation of state of Friend et al. (1989)
! 11-01-99 EWL, add Span 12 term short equation of state
! 11-22-99 EWL, change ECS reference fluid to nitrogen
! 01-24-00 EWL, change transport limits to match eos
! 01-26-00 EWL, add Friend transport equations, but keep Younglove viscosity
!               eq. as default since Friend eq. has an anomaly above 100 MPa.
! 03-20-00 EWL, change max density to the density at p=2*pmax along melting line
! 07-23-02 EWL, add sublimation line


#EOS               !equation of state specification
FEQ  Helmholtz equation of state for methane of Setzmann and Wagner (1991).
?LITERATURE REFERENCE \
?Setzmann, U. and Wagner, W.,
? "A New Equation of State and Tables of Thermodynamic Properties for Methane
? Covering the Range from the Melting Line to 625 K at Pressures up to 1000 MPa,"
? J. Phys. Chem. Ref. Data, 20(6):1061-1151, 1991.
?\
?The uncertainties in density are 0.03% for pressures below 12 MPa and
?temperatures below 350 K and up to 0.07% for pressures less than 50 MPa.
?For the speed of sound, the uncertainty ranges from 0.03% (in the vapor
?phase) to 0.3% depending on temperature and pressure.  Heat capacities
?may be generally calculated within an uncertainty of 1%.
?\
!end of info section
90.6941            !lower temperature limit [K]
625.0              !upper temperature limit [K]
1000000.0          !upper pressure limit [kPa]
40.072             !maximum density [mol/L]
CPP                                    !pointer to Cp0 model
16.0428                                !molecular weight [g/mol]
90.6941                                !triple point temperature [K]
11.696                                 !pressure at triple point [kPa]
28.142                                 !density at triple point [mol/L]
111.667                                !normal boiling point temperature [K]
0.01142                                !acentric factor
190.564      4599.2       10.139128    !Tc [K], pc [kPa], rhoc [mol/L]
190.564                   10.139128    !reducing parameters [K, mol/L]
8.31451                                !gas constant [J/mol-K]
      36  4      4  12      0  0       !# terms, # coeff/term for:  "normal" terms, critical, spare
 0.43679010280d-01 -0.500   1.00    0  !a(i),t(i),d(i),l(i)
 0.67092361990d+00  0.500   1.00    0
-0.17655778590d+01  1.000   1.00    0
 0.85823302410d+00  0.500   2.00    0
-0.12065130520d+01  1.000   2.00    0
 0.51204672200d+00  1.500   2.00    0
-0.40000107910d-03  4.500   2.00    0
-0.12478424230d-01  0.000   3.00    0
 0.31002697010d-01  1.000   4.00    0
 0.17547485220d-02  3.000   4.00    0
-0.31719216050d-05  1.000   8.00    0
-0.22403468400d-05  3.000   9.00    0
 0.29470561560d-06  3.000  10.00    0
 0.18304879090d+00  0.000   1.00    1
 0.15118836790d+00  1.000   1.00    1
-0.42893638770d+00  2.000   1.00    1
 0.68940024460d-01  0.000   2.00    1
-0.14083139960d-01  0.000   4.00    1
-0.30630548300d-01  2.000   5.00    1
-0.29699067080d-01  2.000   6.00    1
-0.19320408310d-01  5.000   1.00    2
-0.11057399590d+00  5.000   2.00    2
 0.99525489950d-01  5.000   3.00    2
 0.85484378250d-02  2.000   4.00    2
-0.61505556620d-01  4.000   4.00    2
-0.42917924230d-01 12.000   3.00    3
-0.18132072900d-01  8.000   5.00    3
 0.34459047600d-01 10.000   5.00    3
-0.23859194500d-02 10.000   8.00    3
-0.11590949390d-01 10.000   2.00    4
 0.66416936020d-01 14.000   3.00    4
-0.23715495900d-01 12.000   4.00    4
-0.39616249050d-01 18.000   4.00    4
-0.13872920440d-01 22.000   4.00    4
 0.33894895990d-01 18.000   5.00    4
-0.29273787530d-02 14.000   6.00    4
 0.93247999460d-04  2.000   2.00    2 2  -20.  -200.   1.07   1.  0.  0.  0.
-0.62871715180d+01  0.000   0.00    2 2  -40.  -250.   1.11   1.  0.  0.  0.
 0.12710694670d+02  1.000   0.00    2 2  -40.  -250.   1.11   1.  0.  0.  0.
-0.64239534660d+01  2.000   0.00    2 2  -40.  -250.   1.11   1.  0.  0.  0.


#AUX               !auxiliary model specification
CPP  ideal gas heat capacity function of Setzmann and Wagner
?LITERATURE REFERENCE \
?Setzmann, U. and Wagner, W.,
? "A New Equation of State and Tables of Thermodynamic Properties for Methane
? Covering the Range from the Melting Line to 625 K at Pressures up to 1000 MPa,"
? J. Phys. Chem. Ref. Data, 20(6):1061-1151, 1991.
?\
!end of info section
90.6941            !lower temperature limit [K]
625.0              !upper temperature limit [K]
0.0                !upper pressure limit [kPa]
0.0                !maximum density [mol/L]
1.0          8.31451                   !reducing parameters for T, Cp0
  1  5    0  0    0  0  0              !Nterms:  polynomial, exponential, cosh, sinh
0.40016000d+01    0.00
0.84490000d-02    648.00
0.46942000d+01   1957.00
0.34865000d+01   3895.00
0.16572000d+01   5705.00
0.14115000d+01  15080.00


@EOS               !equation of state specification
FE1  Helmholtz equation of state for methane of Friend et al. (1989).
?LITERATURE REFERENCE \
?Friend, D.G., Ely, J.F., and Ingham, H.,
? "Thermophysical Properties of Methane,"
? J. Phys. Chem. Ref. Data, 18(2):583-638, 1989.
?\
!end of info section
90.6854            !lower temperature limit [K]
620.0              !upper temperature limit [K]
100000.0           !upper pressure limit [kPa]
29.714             !maximum density [mol/L]
CP1                                    !pointer to Cp0 model
16.043                                 !molecular weight [g/mol]
90.6854                                !triple point temperature [K]
11.694                                 !pressure at triple point [kPa]
28.145                                 !density at triple point [mol/L]
111.66                                 !normal boiling point temperature [K]
0.0086                                 !acentric factor
190.551      4599.2       10.139       !Tc [K], pc [kPa], rhoc [mol/L]
190.551                   10.139       !reducing parameters [K, mol/L]
8.31451                                !gas constant [J/mol-K]
      32  4      0  0       0  0       !# terms, # coeff/term for:  "normal" terms, critical, spare
 0.384436099659d+0  0.0     1.0     0  !a(i),t(i),d(i),l(i)
-0.179692598800d+1  1.5     1.0     0
 0.329444947369d+0  2.5     1.0     0
 0.226312728442d-1 -0.5     2.0     0
 0.759236768798d-1  1.5     2.0     0
 0.693758447259d-1  2.0     2.0     0
 0.241163263947d-1  0.0     3.0     0
 0.107009920854d-1  1.0     3.0     0
-0.380933275164d-1  2.5     3.0     0
 0.471537561143d-3  0.0     6.0     0
 0.556607678805d-3  2.0     7.0     0
 0.548759346533d-6  5.0     7.0     0
-0.999632699967d-4  2.0     8.0     0
-0.128087979280d+0  5.0     1.0     2
 0.380198873377d-1  6.0     1.0     2
 0.139226650551d+0  3.5     2.0     2
-0.874996348859d-1  5.5     2.0     2
-0.334894165760d-2  3.0     3.0     2
-0.517576297122d-1  7.0     3.0     2
 0.252835179116d-1  6.0     5.0     2
 0.518703205950d-3  8.5     6.0     2
-0.166770594525d-2  4.0     7.0     2
-0.607401927389d-3  6.5     8.0     2
-0.972915359991d-4  5.5    10.0     2
-0.298844010462d-4 22.0     2.0     4
-0.130940111124d-1 11.0     3.0     4
 0.198175833798d-1 18.0     3.0     4
 0.208465762327d-1 11.0     4.0     4
-0.358025052631d-1 23.0     4.0     4
-0.203486851741d+0 17.0     5.0     4
 0.215964755088d+0 18.0     5.0     4
-0.429340628249d-2 23.0     5.0     4


#AUX               !auxiliary model specification
CP1  ideal gas heat capacity function
?LITERATURE REFERENCE \
?Friend, D.G., Ely, J.F., and Ingham, H.,
? "Thermophysical Properties of Methane,"
? J. Phys. Chem. Ref. Data, 18(2):583-638, 1989.
?\
!end of info section
90.6854            !lower temperature limit [K]
620.0              !upper temperature limit [K]
0.0                !upper pressure limit [kPa]
0.0                !maximum density [mol/L]
1.0          8.31451                   !reducing parameters for T, Cp0
  4  1    0  0    0  0  0              !Nterms:  polynomial, exponential, cosh, sinh
 3.599832400000d+0   0.000
 2.614717613495d-1   0.3333333333333
-5.671028952515d-2   0.6666666666667
 4.105505612671d-3   1.000
 4.720671500000d+0   2009.15202


@EOS               !equation of state specification
FES  short Helmholtz equation of state for methane of Span (2000).
?LITERATURE REFERENCE \
?Span, R.,
? "Multiparameter Equations of State - An Accurate Source of Thermodynamic
? Property Data," Springer, Berlin, Heidelberg, New York, 2000.
?\
?The uncertainties of the equation of state are approximately 0.2% (to
?0.5% at high pressures) in density, 1% (in the vapor phase) to 2% in
?heat capacity, 1% (in the vapor phase) to 2% in the speed of sound, and
?0.2% in vapor pressure, except in the critical region.
?\
!end of info section
90.6941            !lower temperature limit [K]
600.0              !upper temperature limit [K]
100000.0           !upper pressure limit [kPa]
40.072             !maximum density [mol/L]
CPP                                    !pointer to Cp0 model
16.043                                 !molecular weight [g/mol]
90.6941                                !triple point temperature [K]
11.661                                 !pressure at triple point [kPa]
28.167                                 !density at triple point [mol/L]
111.66                                 !normal boiling point temperature [K]
0.011                                  !acentric factor
190.564      4599.0       10.139001    !Tc [K], pc [kPa], rhoc [mol/L]
190.564                   10.139001    !reducing parameters [K, mol/L]
8.31451                                !gas constant [J/mol-K]
      12  4      0  0       0  0       !# terms, # coeff/term for:  "normal" terms, critical, spare
 0.892696760000E+00  0.25    1.0     0 !a(i),t(i),d(i),l(i)
-0.254382820000E+01  1.125   1.0     0
 0.649809780000E+00  1.5     1.0     0
 0.207934710000E-01  1.375   2.0     0
 0.701891040000E-01  0.25    3.0     0
 0.237003780000E-03  0.875   7.0     0
 0.166533340000E+00  0.625   2.0     1
-0.438556690000E-01  1.75    5.0     1
-0.157267800000E+00  3.625   1.0     2
-0.353116750000E-01  3.625   4.0     2
-0.295700240000E-01 14.5     3.0     3
 0.140198420000E-01 12.0     4.0     3


@EOS               !equation of state specification
BWR  MBWR equation of state for methane of Younglove and Ely (1987).
?LITERATURE REFERENCE \
?Younglove, B.A. and Ely, J.F.,
? "Thermophysical properties of fluids. II. Methane, ethane, propane,
? isobutane and normal butane,"
? J. Phys. Chem. Ref. Data, 16:577-798, 1987.
?\
?N.B.  all temperatures on IPTS-68
?\
!end of info section
90.68              !lower temperature limit [K]
600.0              !upper temperature limit [K]
200000.0           !upper pressure limit [kPa]
36.2029            !maximum density [mol/L]
CP2                                    !pointer to Cp0 model
16.043                                 !molecular weight [g/mol]
90.68                                  !triple point temperature [K]
11.744                                 !pressure at triple point [kPa]
28.147                                 !density at triple point [mol/L]
111.667                                !normal boiling point temperature [K]
0.15238                                !acentric factor
190.53       4597.97      10.15        !Tc [K], pc [kPa], rhoc [mol/L]
190.53                    10.15        !reducing parameters [K, mol/L]
10.15                                  !gamma
0.0831434                              !gas constant [L-bar/mol-K]
      32       1                       !Nterm, Ncoeff per term
   0.9898937956d-04     0.2199608275d-00    -0.5322788000d+01
   0.2021657962d+03    -0.2234398926d+05     0.1067940280d-03
   0.1457922469d-02    -0.9265816666d+01     0.2915364732d+04
   0.2313546209d-05     0.1387214274d-02     0.4780467451d-01
   0.1176103833d-03    -0.1982096730d-02    -0.2512887756d-00
   0.9748899826d-04    -0.1202192137d-05     0.4128353939d-03
  -0.7215842918d-05     0.5081738255d+04    -0.9198903192d+06
  -0.2732264677d+02     0.7499024351d+06     0.1114060908d-01
   0.1083955159d+02    -0.4490960312d-03    -0.1380337847d+02
  -0.2371902232d-06     0.3761652197d-03    -0.2375166954d-08
  -0.1237640790d-06     0.6766926453d-05


#AUX               !auxiliary model specification
CP2  ideal gas heat capacity function of Younglove and Ely
?LITERATURE REFERENCE \
?Younglove, B.A. and Ely, J.F.,
? "Thermophysical properties of fluids. II. Methane, ethane, propane,
? isobutane and normal butane,"
? J. Phys. Chem. Ref. Data, 16:577-798, 1987.
?\
!end of info section
90.68              !lower temperature limit [K]
600.0              !upper temperature limit [K]
0.0                !upper pressure limit [kPa]
0.0                !maximum density [mol/L]
1.0          8.31434                   !reducing parameters for T, Cp0
  7  1    0  0    0  0  0              !Nterms:  polynomial, exponential, cosh, sinh
 -0.18044750507d+07    -3.00d0
  0.77426666393d+05    -2.00d0
 -0.13241658754d+04    -1.00d0
  0.15438149595d+02     0.00d0
 -0.51479005257d-01     1.00d0
  0.10809172196d-03     2.00d0
 -0.65501783437d-07     3.00d0
 -0.67490056171d+01  3000.d0