r124.fld

一个关于物性计算的软件

100.0              !lower temperature limit [K]
475.0              !upper temperature limit [K]
0.0                !upper pressure limit [kPa]
0.0                !maximum density [mol/L]
395.62       8.314471                  !reducing parameters for T, Cp0
  4  0    0  0    0  0  0              !Nterms:  polynomial, exponential, cosh, sinh
 3.20532538d+0     0.00                !c(i), power of T
 1.34403357d+1     1.00
-2.32192933d+0     2.00
-4.22826803d-1     3.00


#TRN               !transport model specification
ECS  Extended Corresponding States model2 (propane reference); fitted to data.
?LITERATURE REFERENCES \
?Klein, S.A., McLinden, M.O., and Laesecke, A.,
? "An improved extended corresponding states method for estimation of
? viscosity of pure refrigerants and mixtures,"
? Int. J. Refrigeration, 20:208-217, 1997.
?\
?McLinden, M.O., Klein, S.A., and Perkins, R.A.,
? "An extended corresponding states model for the thermal conductivity
? of refrigerants and refrigerant mixtures,"
? Int. J. Refrigeration, 23:43-63, 2000.
?\
?DATA SOURCES FOR THERMAL CONDUCTIVITY\
?The ECS parameters for thermal conductivity were based on the data of:\
?\
?Yata, J., Minamiyana, T., and Tanaka, S.(1984). "Measurement of Thermal Conductivity
?  of Liquid Fluorocarbons",Int. J. Thermophys., 5(2):209-218.
?
?Yata, J., Hori, M., Kurahashi, T. and Minamiyama, T. (1992). "Thermal conductivity
?  of alternative fluorocarbons in liquid phase", Fluid Phase Equilibria 80:287-296.
?
?Assael, M.J. amd Karagiannidis, L. (1995). "Measurments of the thermal conductivity of
? liquid R32, R124, R125, and R141b", Int. J.Thermophys. 16(4):851-865.
?
?Assael, M.J., Malamataris, N., and Karagiannidis, L. (1997). "Measurements of the
? thermal conductivity of refrigerants in the vapor phase", Int. J. Thermophys. 18(2):341-352.
?
?Fellows, B.R., Richard, R.G., and Shankland, I.R. (1990). "Thermal conductivity data for
? some environmentally acceptable fluorocarbons", Thermal Conductivity 21, Plenum Press, NY.
?
?Perkins, R.A, (2001) personal communication, 325 Broadway Boulder CO 80305,
?[e-mail]
?\
?Average absolute deviations of the fit from the experimental data were:\
?  Yata(1992): 0.68%; Assael(1995): 0.66%; Yata (1984): 1.39%; Assael(1997):  0.90%;
?  Fellows(1990):3.03%; Perkins(2001): 2.61%;
?  Overall:  2.45%\
?
?\
?DATA SOURCES FOR VISCOSITY\
?The ECS parameters for viscosity were based on the data of:\
?\
?Assael, M.J., Polimatidou, S.K. (1994). "Measurements of the viscosity of liquid R22, R124,
? and R125 in the Temperature range 273-333K". Int. J. Thermophys 15(5):779-790.
?
?Assael, M.J., Polimatidou, S.K. (1997). "Measurements of the viscosity of refrigerants
? in the vapor phase". Int. J. Thermophys 18(2):353-366.
?
?Diller, D.E. and Peterson, S.M. (1993). "Measurements of the viscosities of saturated and
? compressed fluid 1-chloro-1,2,2,2-tetrafluoroethane (R124) and pentafluoroethane (R125)
? at temperatures between 120 and 420 K". Int. J. Thermophys. 14(1):55-66.
?
?Ripple, D. and Matar, O. (1993). "Viscosity of the saturated liquid phase of six halogenated
? compounds and three mixtures". J. Chem. Eng. Data 38:560-564.
?
?Average absolute deviations of the fit from the experimental data were:\
?   Assael(1994):  0.92%; Assael(1997): 0.80%; Diller: 4.99%; Ripple: 1.20%
?   Overall: 3.56%\
?\
?Lennard-Jones parameters are from:\
?Dowdell, D.C. and Matthews, G.P. (1993). Gas viscosities and intermolecular
? interactions of replacement refrigerants HCFC 123 (2,2-dichloro-
? 1,1,1-trifluoroethane), HCFC 124 (2-chloro-1,1,1,2-tetrafluoroethane), and
? HFC 134a (1,1,1,2-tetrafluuoroethane). J. Chem. Soc. Faraday Trans.
? 89:3545-3552.\
?\
!end of info section
120.0              !lower temperature limit [K]
470.0              !upper temperature limit [K]
40000.0            !upper pressure limit [kPa]
13.5758            !maximum density [mol/L]
FEQ propane.fld
VS1                !model for reference fluid viscosity
TC1                !model for reference fluid thermal conductivity
1                  !Lennard-Jones flag (0 or 1) (0 => use estimates)
0.5501             !Lennard-Jones coefficient sigma [nm] for ECS method
275.8              !Lennard-Jones coefficient epsilon/kappa [K] for ECS method
2  0  0                        !number of terms in f_int term in Eucken correlation, spare1, spare2
0.117690d-02  0.0   0.0   0.0  !coeff, power of T, spare 1, spare 2
 0.678397d-06 1.0   0.0   0.0  !coeff, power of T, spare 1, spare 2
2  0  0                        !number of terms in psi (visc shape factor): poly,spare1,spare2
1.04253      0.0   0.0   0.0   !coeff, power of Tr, power of Dr, spare
1.38528d-03  0.0   1.0   0.0   !coeff, power of Tr, power of Dr, spare
2  0  0                        !number of terms in chi (t.c. shape factor): poly,spare1,spare2
 0.108978d+01 0.0  0.0   0.0   !coeff, power of Tr, power of Dr, spare
-0.154229d-01 0.0  1.0   0.0   !coeff, power of Tr, power of Dr, spare
TK6                !pointer to critical enhancement auxiliary function


#AUX               !thermal conductivity critical enhancement model
TK6  simplified thermal conductivity critical enhancement of Olchowy and Sengers
?LITERATURE REFERENCE \
?Olchowy, G.A. and Sengers, J.V.,
? "A simplified representation for the thermal conductivity of fluids in the
? critical region,"
? Int. J. Thermophysics, 10:417-426, 1989.
?\
?as applied to CO2 by:
?\
?Vesovic, V., Wakeham, W.A., Olchowy, G.A., Sengers, J.V., Watson, J.T.R.
? and Millat, J.,
? "The transport properties of carbon dioxide,"
? J. Phys. Chem. Ref. Data, 19:763-808, 1990.
?\
!end of info section
120.0              !lower temperature limit [K]
470.0              !upper temperature limit [K]
40000.0            !upper pressure limit [kPa]
13.5758            !maximum density [mol/L]
9  0  0  0         !# terms:  CO2-terms, spare, spare, spare
1.0     1.0     1.0      !reducing par for T, rho, tcx (mW/m-K)
0.630d0            !gnu (universal exponent)
1.239d0            !gamma (universal exponent)
1.03d0             !R0 (universal amplitude)
0.063d0            !z (universal exponent--not used for t.c., only viscosity)
1.00d0             !c (constant in viscosity eqn = 1/[2 - (alpha + gamma)/(2*nu)], but often set to 1)
0.194d-9           !xi0 (amplitude) [m]
0.0496             !gam0 (amplitude) [-]
 5.0000d-10        !qd_inverse (modified effective cutoff parameter) [m] ; not fit to data
 593.1375d+00      !tref (reference temperature)=1.5*Tc [K]


#STN        !surface tension specification
ST1  surface tension model of Okada and Higashi (1995).
?LITERATURE REFERENCE \
?Okada, M. and Higashi, Y.
? "Experimental surface tensions for HFC-32, HCFC-124, HFC-125, HCFC-141b,
? HCFC-142b, and HFC-152a,"
? Int. J. Thermophysics, 16(3):791-800, 1995.
?\
!end of info section
100.0              !lower temperature limit [K]
395.425            !upper temperature limit [K]
0.0                !(dummy) upper pressure limit
0.0                !(dummy) maximum density
1                           !number of terms in surface tension model
395.35                      !critical temperature used by Okada & Higashi (dummy)
 0.05219     1.203          !sigma0 and n


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