r125.fld

一个关于物性计算的软件

-0.332386E-01       0.00d0   3.00d0   0.00d0
 0.390992E-01       1.00d0   3.00d0   0.00d0
 0.101184E-01       0.00d0   4.00d0   0.00d0
-0.151667E-01       1.00d0   4.00d0   0.00d0
-0.113510E-02       0.00d0   5.00d0   0.00d0
 0.245584E-02       1.00d0   5.00d0   0.00d0
TK6                !pointer to critical enhancement auxiliary function


@TRN               !transport model specification
ECS  Extended Corresponding States model (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:\
?\
?Perkins, R.A.,(2002) personal communication. 325 Broadway, Boulder, CO
? 80305, [e-mail]
?\
?LeNeindre, B. and Garrabos, Y. (1999). Measurements of the thermal
? conductivity of HFC-125 in the temperature range from 300 to
? 515 K at pressures up to 53 MPa, Int. J. Thermophys. 20:375-399.
?
?Yata, J., Hori, M., Kobayashi, K. and Minamiyama, T. (1996).
? Thermal conductivity of alternative refrigerants in the liquid phase,
? Int. J. Thermophys 17:561-571.
?
?Assael, M.J., Malamataris, N., and Karagiannidis, L. (1997).
? Measurements of the thermal conductivity of refrigerants in the
? vapor phase, Int.J. Thermophys. 18:341-352.
?
?Kim, D.S., Yang, M.H., Kim, M.S. and Ro, S.T. (1995). Thermal
? conductivities of pentafluoroethane  (R125) and its mixtures
? with difluoromethane (R32) in the liquid phase, Proc. 4th
? Asian Thermophysical Properties Conference, Tokyo Japan, paper C1c1
?
?Gao, X., Yamada, T., Nagasaka, Y. and Nagashima, A (1996). The
? thermal conductivity of CFC alternatives HFC-125 and HCFC-141b in the
? liquid phase, Int. J. Thermophys. 17:279-292.
?
?Assael, M.J. and Karagiannidis, L. (1995). Measurements of the thermal
? conductivity of liquid R32, R124, R125, and R141b,Int.J. Thermohpys 16:851-65.
?
?average absolute deviations of the fit from the experimental data were:\
?  Perkins:2.00%; LeNeindre:  2.22%; Yata:  1.98; Assael(1997): 1.21%
?  Kim: 1.66%; Gao:  1.38%; Assael (1995): 1.16%
?  Overall: 2.04%\
?\
?DATA SOURCES FOR VISCOSITY\
?The ECS parameters for viscosity were based on the data of:\
?
?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.
? Thermophysics, 14:55-66.\
?
?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.
?
?Wilson, L.C., Wilding, W.V., Wilson, G.M., Rowley, R.L., Felix, V.M.,
? and Chilsom-Carter, T. (1992). Thermophysical properties of HFC-125.
? Fluid Phase Equilibria  80:167-177.\
?
?Ripple, D. and Defibaugh, D., Viscosity of the saturated liquid phase of
? three fluorinated ethanes: R152a, R143a and R125, J. Chem. Eng. Data,
? 1997, 42, 360-364.
?
?Assael, M.J., and Polimatidou, S. (1994).Measurements of the viscosity of
? liquid R22, R124, and R125 in the temperature range 273-333 K at
? pressures up to 17 MPa, Int. J. Thermophys 15: 779-790.
?
?Assael, M.J., and Polimatidou, S. (1997).Measurements of the viscosity of
? refrigerants in the vapor phase, Int. J. Thermophys 18: 353-366.
?
?Dunlop, P.J. (1994) Viscosities of a series of gaseous fluorocarbons at
? 25C, J. Chem. Phys. 100:3149-3151.
?
?Takahashi, M., Shibasaki-Kitakawa, N., and Yokoyama, C., Viscosity of
? Gaseous HFC-125 (pentafluoroethane) under high pressures, Int. J.
? Thermophysics, 1999, 20(2), 445-453.
?\
?Average absolute deviations of the fit from the experimental data were:
?  Diller:  2.85%; Ripple(1993): 2.31%; Wilson: 2.53%; Ripple(1997): 0.70%
?  Assael (1994): 1.26%; Assael (1997): 1.01%; Dunlop: -0.15%; Takahashi:1.45%
?  Overall: 1.87%
?
?Lennard-Jones parameters are from Le Neindre (1999)
?
?\
!end of info section
172.52             !lower temperature limit [K]
500.0              !upper temperature limit [K]
60000.0            !upper pressure limit [kPa]
14.10              !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)
0.519              !Lennard-Jones coefficient sigma [nm] for ECS method
249.0              !Lennard-Jones coefficient epsilon/kappa [K] for ECS method
2  0  0                         !number of terms in f_int term in Eucken correlation, spare1, spare2
 0.118189d-02  0.0   0.0   0.0  !coeff, power of T, spare 1, spare 2
 0.663334d-06  1.0   0.0   0.0
2  0  0                         !number of terms in psi (visc shape factor): poly,spare1,spare2
 0.100907d+01  0.0   0.0   0.0  !coeff, power of Tr, power of Dr, spare
 1.939680d-02  0.0   1.0   0.0
2  0  0                         !number of terms in chi (t.c. shape factor): poly,spare1,spare2
 0.121594d+01  0.0   0.0   0.0  !coeff, power of Tr, power of Dr, spare
-5.65310d-02   0.0   1.0   0.0
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
172.52             !lower temperature limit [K]
500.0              !upper temperature limit [K]
60000.0            !upper pressure limit [kPa]
14.10              !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) [-]
 4.736328d-10      !qd_inverse (modified effective cutoff parameter) [m]; fit to data
 508.7475d+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
172.52             !lower temperature limit [K]
339.33             !upper temperature limit [K]
0.0                !(dummy) upper pressure limit
0.0                !(dummy) maximum density
1                           !number of terms in surface tension model
339.17                      !critical temperature used by Okada & Higashi (dummy)
 0.05260     1.240          !sigma0 and n


#PS         !vapor pressure equation
PS5  vapor pressure equation
?LITERATURE REFERENCE \
?Lemmon, E.W. and Jacobsen, R.T,
? preliminary formulation, 2002.
?\
!end of info section
172.52             !lower temperature limit [K]
500.0              !upper temperature limit [K]
0.0                !(dummy) upper pressure limit
0.0                !(dummy) maximum density
339.173   3617.7   !reducing parameters
 4 0 0 0 0 0       !number of terms in equation
-7.5295   1.0      !coefficients and exponents
 1.9026   1.5
-2.2966   2.3
-3.4480   4.6


#DL         !saturated liquid density equation
DL2  saturated liquid density equation
?LITERATURE REFERENCE \
?Lemmon, E.W. and Jacobsen, R.T,
? preliminary formulation, 2002.
?\
!end of info section
172.52             !lower temperature limit [K]
500.0              !upper temperature limit [K]
0.0                !(dummy) upper pressure limit
0.0                !(dummy) maximum density
339.173     4.779  !reducing parameters
 3 0 0 0 0 0       !number of terms in equation
 1.6684    1.0     !coefficients and exponents
 0.88415   1.8
 0.44383   8.7


#DV         !saturated vapor density equation
DV3  saturated vapor density equation
?LITERATURE REFERENCE \
?Lemmon, E.W. and Jacobsen, R.T,
? preliminary formulation, 2002.
?\
!end of info section
172.52             !lower temperature limit [K]
500.0              !upper temperature limit [K]
0.0                !(dummy) upper pressure limit
0.0                !(dummy) maximum density
339.173    4.779   !reducing parameters
 4 0 0 0 0 0       !number of terms in equation
-2.8403   0.38     !coefficients and exponents
-7.2738   1.22
-21.890   3.3
-58.825   6.9


@END
c        1         2         3         4         5         6         7         8
c2345678901234567890123456789012345678901234567890123456789012345678901234567890