r123.fld

一个关于物性计算的软件

R123                                  !short name
306-83-2                              !CAS number
2,2-dichloro-1,1,1-trifluoroethane    !full name
CHCl2CF3                              !chemical formula
HCFC-123                              !synonym
152.931            !molecular weight [g/mol]
166.0              !triple point temperature [K]
300.973            !normal boiling point [K]
456.831            !critical temperature [K]
3661.8             !critical pressure [kPa]
3.596417           !critical density [mol/L]
0.28192            !acentric factor
1.356              !dipole moment [Debye]; Meyer & Morrison (1991) J. Chem. Eng. Data 36:409-413.
IIR                !default reference state
6.1                !version number

! compiled by M. McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado
! 10-10-95  MM, original version
! 03-15-96  MM, add transport correlations compiled by S.A. Klein
! 03-18-96  MM, add dipole moment
! 06-17-96  MM, add thermal conductivity coefficients fitted by S.A. Klein
! 08-19-96  MM, add surface tension fit
! 01-31-97  MM, change pointer for ECS reference viscosity from VS3 to VS1
!               put viscosity model of Tanaka and Sotani into new VS1 form
! 02-20-97  MM, add default reference state
! 02-25-97  MM, add thermal conductivity correlation of Laesecke
! 02-26-97  MM, add version number and pointer to visc critical enhancement (both future use)
! 03-11-97  MM, modify ECS-transport to new format
! 03-25-97  MM, set Psi,Chi coeff in ECS-transport to 1,0 pending refit of data
! 08-21-97  MM, purge exponentials from values read by GUI (e.g. model limits)
! 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
! 11-01-99 EWL, add Span 12 term short equation of state
! 11-10-99 EWL, change ptp to match p at 166 K
! 01-24-00 EWL, change transport limits to match eos


#EOS               !equation of state specification
BWR  MBWR equation of state for R-123 of Younglove and McLinden (1994).
?LITERATURE REFERENCE \
?Younglove, B.A. and McLinden, M.O.,
? "An international standard equation-of-state formulation of the thermodynamic
? properties of refrigerant 123 (2,2-dichloro-1,1,1-trifluoroethane),"
? J. Phys. Chem. Ref. Data, 23:731-779, 1994.
?\
?The uncertainties of the equation of state are 0.1% in density, 1.5% in heat
?capacity, and 2% in the speed of sound, except in the critical region.
?The uncertainty in vapor pressure is 0.1%.  Uncertainties are greater below
?180 K.
?\
?ABSTRACT \
?A modified Benedict-Webb-Rubin (MBWR) equation of state has been developed
? for Refrigerant 123 (2,2-dichloro-1,1,1-trifluoroethane) based on recently
? measured thermodynamic property data and data available from the literature.
? Single-phase pressure-volume-temperature (PVT), heat capacity, and sound speed
? data, as well as second virial, vapor pressure, and saturated liquid and
? saturated vapor density data, were used with multiproperty linear least
? squares fitting techniques to fit the 32 adjustable coefficients of the MBWR
? equation.  Coefficients for the equation of state and for ancillary equations
? representing the vapor pressure, saturated liquid and saturated vapor
? densities, and ideal gas heat capacity are given.  While the measurements
? cover differing ranges of temperature and pressure, the MBWR formulation is
? applicable along the saturation line and in the liquid, vapor, and
? supercritical regions at temperatures from 166 to 500 K with pressures to
? 40 MPa and densities to 11.6 mol/L (1774 kg/m3).  This formulation has been
? selected as an international standard based on an evaluation of the available
? equations of state by a group working under the auspices of the International
? Energy Agency.
?
!end of info section
166.0              !lower temperature limit [K]
600.0              !upper temperature limit [K]
40000.0            !upper pressure limit [kPa]
11.60              !maximum density [mol/L]
CPP                                    !pointer to Cp0 model
152.931                                !molecular weight [g/mol]
166.0                                  !triple point temperature [K]
0.0042                                 !pressure at triple point [kPa]
11.60                                  !density at triple point [mol/L]
300.973                                !normal boiling point temperature [K]
0.28192                                !acentric factor
456.831      3661.8       3.596417     !Tc [K], pc [kPa], rhoc [mol/L]
456.831                   3.596417     !reducing parameters [K, mol/L]
3.596417                               !gamma
0.08314510                             !gas constant [L-bar/mol-K]
      32       1                       !Nterm, Ncoeff per term
 -0.657453133659d-02    0.293479845842d+01   -0.989140469845d+02
  0.201029776013d+05   -0.383566527886d+07    0.227587641969d-02
 -0.908726819450d+01    0.434181417995d+04    0.354116464954d+07
 -0.635394849670d-03    0.320786715274d+01   -0.131276484299d+04
 -0.116360713718d+00   -0.113354409016d+02   -0.537543457327d+04
  0.258112416120d+01   -0.106148632128d+00    0.500026133667d+02
 -0.204326706346d+01   -0.249438345685d+07   -0.463962781113d+09
 -0.284903429588d+06    0.974392239902d+10   -0.637314379308d+04
  0.314121189813d+06   -0.145747968225d+03   -0.843830261449d+07
 -0.241138441593d+01    0.108508031257d+04   -0.106653193965d-01
 -0.121343571084d+02   -0.257510383240d+03


@EOS               !equation of state specification
FE1  Helmholtz transform of MBWR EOS for R-123 of Younglove & McLinden (1994)
?LITERATURE REFERENCE \
?Younglove, B.A. and McLinden, M.O.,
? "An international standard equation-of-state formulation of the thermodynamic
? properties of refrigerant 123 (2,2-dichloro-1,1,1-trifluoroethane),"
? J. Phys. Chem. Ref. Data, 23:731-779, 1994.
?\
?The equation here is the same as the Younglove and McLinden BWR equation,
? but has been transformed into the fundamental Helmholtz energy form.
?
!end of info section
166.0              !lower temperature limit [K]
600.0              !upper temperature limit [K]
40000.0            !upper pressure limit [kPa]
11.60              !maximum density [mol/L]
CPP                                    !pointer to Cp0 model
152.931                                !molecular weight [g/mol]
166.0                                  !triple point temperature [K]
0.0042                                 !pressure at triple point [kPa]
11.60                                  !density at triple point [mol/L]
300.973                                !normal boiling point temperature [K]
0.28192                                !acentric factor
456.831      3661.8       3.596417     !Tc [K], pc [kPa], rhoc [mol/L]
456.831                   3.596417     !reducing parameters [K, mol/L]
8.314510                               !gas constant [J/mol-K]
      40  4      0  0       0  0       !# terms, # coeff/term for:  "normal" terms, critical, spare
 -0.100242647494E+02   3.000   0.00  0 !a(i),t(i),d(i),l(i)
 -0.280607656419E+00   4.000   0.00  0
  0.206814471606E-01   5.000   0.00  0
 -0.284379431451E+00   0.000   1.00  0
  0.593928110321E+01   0.500   1.00  0
 -0.936560389528E+01   1.000   1.00  0
  0.416660793675E+01   2.000   1.00  0
 -0.174023292951E+01   3.000   1.00  0
  0.177019905365E+00   0.000   2.00  0
 -0.154721692260E+01   1.000   2.00  0
  0.161820495590E+01   2.000   2.00  0
  0.288903529383E+01   3.000   2.00  0
 -0.118493874757E+00   0.000   3.00  0
  0.130952266209E+01   1.000   3.00  0
 -0.117308103711E+01   2.000   3.00  0
 -0.128125131950E+00   1.000   4.00  0
 -0.786087387513E-01   2.000   5.00  0
 -0.816000499305E-01   3.000   5.00  0
  0.536451054311E-01   2.000   6.00  0
 -0.680078211929E-02   2.000   7.00  0
  0.701264082191E-02   3.000   7.00  0
 -0.901762397311E-03   3.000   8.00  0
  0.100242647494E+02   3.000   0.00  2
  0.280607656419E+00   4.000   0.00  2
 -0.206814471606E-01   5.000   0.00  2
  0.798923878145E+01   3.000   2.00  2
 -0.547972072476E+00   4.000   2.00  2
 -0.206814470584E-01   5.000   2.00  2
  0.249142724365E+01   3.000   4.00  2
 -0.273986034884E+00   4.000   4.00  2
  0.236001863614E+00   5.000   4.00  2
  0.540528251211E+00   3.000   6.00  2
 -0.600457561959E-01   4.000   6.00  2
  0.786672874826E-01   5.000   6.00  2
  0.708085874508E-01   3.000   8.00  2
 -0.150114389748E-01   4.000   8.00  2
  0.182205199477E-02   5.000   8.00  2
  0.314978575163E-02   3.000  10.00  2
  0.784455573794E-02   4.000  10.00  2
  0.364410397155E-03   5.000  10.00  2


#AUX               !auxiliary model specification
CPP  ideal gas heat capacity function of Younglove & McLinden (1994).
?LITERATURE REFERENCE \
?Younglove, B.A. and McLinden, M.O.,
? "An international standard equation-of-state formulation of the thermodynamic
? properties of refrigerant 123 (2,2-dichloro-1,1,1-trifluoroethane),"
? J. Phys. Chem. Ref. Data, 23:731-779, 1994.
?\
!end of info section
150.0              !lower temperature limit [K]
500.0              !upper temperature limit [K]
0.0                !upper pressure limit [kPa]
0.0                !maximum density [mol/L]
1.0          1.0                       !reducing parameters for T, Cp0
  4  0    0  0    0  0  0              !Nterms:  polynomial, exponential, cosh, sinh
17.01154d0         0.00                !c(i), power of T
 0.4046308d0       1.00
-4.644803d-4       2.00
 2.347418d-7       3.00


@EOS               !equation of state specification
FES  short Helmholtz equation of state for R-123 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