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一些优化：CAN和PLC地址的优化

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m-Xylene !Short name
108-38-3 !CAS number
1,3-Dimethylbenzene !Full name
C8H10 !Chemical formula {C8H10}
m-Xylene !Synonym
106.165 !Molar mass [g/mol]
225.3 !Triple point temperature [K]
412.214 !Normal boiling point [K]
616.89 !Critical temperature [K]
3534.6 !Critical pressure [kPa]
2.665 !Critical density [mol/L]
0.326 !Acentric factor
0.30 !Dipole moment [Debye]; DIPPR DIADEM 2012
NBP !Default reference state
10.0 !Version number
???? !UN Number :UN:
aromatic !Family :Family:
4593.34 !Heating value (upper) [kJ/mol] :Heat:
1S/C8H10/c1-7-4-3-5-8(2)6-7/h3-6H,1-2H3 !Standard InChI String :InChi:
IVSZLXZYQVIEFR-UHFFFAOYSA-N !Standard InChI Key :InChiKey:
f174a9b0 (octane) !Alternative fluid for mixing rules :AltID:
0f99ff70 !Hash number from InChI Key :Hash:
!The fluid files contain general information about the fluid in the first 15 to 20 lines, followed by sections for the
! equations of state, transport equations, and auxiliary equations. Equations of state are listed first. The NIST recommended
! equations begin with a hash mark (#). The secondary equations begin with the @ symbol. These symbols can be swapped to
! select a secondary equation as primary and the primary as secondary. The equation of state section also contains auxiliary
! equations for the ideal gas heat capacity or ideal gas Helmholtz energy. Below the equations of state (both primary and
! secondary) are the transport equations, first viscosity and then thermal conductivity. These are then followed by the
! secondary equations if available. The transport section also contains auxiliary equations required to calculate either the
! dilute gas state or the critical enhancement. At the end of the file are additional but not necessary auxiliary equations,
! including simple equations for the vapor pressure, saturated liquid and vapor densities, melting line (for some fluids), and
! sublimation line (for even fewer fluids). This section also contains the equations for dielectric constant and surface
! tension if available. The sections are divided by different symbols (these being _-+=^*~) to aid the eye in locating a
! particular section. Secondary equations are indented 10 spaces to avoid confusion with the NIST recommended equations. The
! end of the fluid file is marked with @END. Anything below that is ignored.
! compiled by E.W. Lemmon, NIST Physical and Chemical Properties Division, Boulder, Colorado
! 08-01-08 EWL, Original version.
! 01-11-13 MLH, Add transport.
! 04-01-13 SH, Add ancillary equations.
! 04-06-13 EWL, Add dipole moment.
! 04-17-14 EWL, Add surface tension coefficients of Mulero et al. (2014).
! 06-17-14 MLH, Add crit parameter block for thermal conductivity and revised ECS.
! 12-08-14 MLH, Add thermal conductivity model of Mylona et al. 2014.
! 12-07-15 MLH, Add viscosity model of Cao et al. 2016.
________________________________________________________________________________
#EOS !---Equation of state---
FEQ !Helmholtz equation of state for m-xylene of Zhou et al. (2012).
:TRUECRITICALPOINT: 616.89 2.665 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T)
:DOI: 10.1063/1.3703506
?
?```````````````````````````````````````````````````````````````````````````````
?Zhou, Y., Lemmon, E.W., and Wu, J.,
? "Thermodynamic Properties of o-Xylene, m-Xylene, p-Xylene, and Ethylbenzene,"
? J. Phys. Chem. Ref. Data, 41, 023103, 2012.
?
?The uncertainty of the equation of state for m-xylene in vapor pressure is
? 0.2% above 300 K. The uncertainty in saturated liquid density is 0.1%
? between 230 K and 400 K, and increases to 0.2% at higher and lower
? temperatures, due to a lack of experimental data. The uncertainty in
? density is 0.2% in the compressed-liquid region, and 1.0% elsewhere,
? including the critical and vapor regions. The uncertainty in sound speed
? in the liquid phase is estimated to be 0.5%. The uncertainty in
? saturation and isobaric heat capacity is 0.5%.
?
!```````````````````````````````````````````````````````````````````````````````
225.3 !Lower temperature limit [K]
700.0 !Upper temperature limit [K]
200000.0 !Upper pressure limit [kPa]
8.677 !Maximum density [mol/L]
CPP !Pointer to Cp0 model
106.165 !Molar mass [g/mol]
225.3 !Triple point temperature [K]
0.003123 !Pressure at triple point [kPa]
8.677 !Density at triple point [mol/L]
412.214 !Normal boiling point temperature [K]
0.326 !Acentric factor
616.89 3534.6 2.665 !Tc [K], pc [kPa], rhoc [mol/L]
616.89 2.665 !Reducing parameters [K, mol/L]
8.314472 !Gas constant [J/mol-K]
11 4 4 12 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
0.000012791017 1.0 8. 0. !a(i),t(i),d(i),l(i)
0.041063111 0.91 4. 0.
1.505996 0.231 1. 0.
-2.3095875 0.772 1. 0.
-0.46969 1.205 2. 0.
0.171031 0.323 3. 0.
-1.001728 2.7 1. 2.
-0.3945766 3.11 3. 2.
0.6970578 0.768 2. 1.
-0.3002876 4.1 2. 2.
-0.024311 0.818 7. 1.
0.815488 2.0 1. 2. 2. -1.0244 -1.66 1.1013 0.713 0. 0. 0.
-0.330647 2.9 1. 2. 2. -1.3788 -1.9354 0.6515 0.9169 0. 0. 0.
-0.123393 3.83 3. 2. 2. -0.9806 -1.0323 0.4975 0.6897 0. 0. 0.
-0.54661 0.5 3. 2. 2. -6.3563 -78.0 1.26 0.7245 0. 0. 0.
eta beta gamma epsilon
EXP[eta*(delta-epsilon)^2+beta*(tau-gamma)^2]
#AUX !---Auxiliary function for Cp0
CPP !Ideal gas heat capacity function for m-xylene of Zhou et al. (2012).
?
?```````````````````````````````````````````````````````````````````````````````
?Zhou, Y., Lemmon, E.W., and Wu, J., 2012.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
1.0 8.314472 !Reducing parameters for T, Cp0
1 4 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
2.169909 0.0
4.44312 160.0
2.862794 190.0
24.83298 1333.0
16.26077 3496.0
#AUX !---Auxiliary function for PX0
PX0 !Helmholtz energy ideal-gas function for m-xylene of Zhou et al. (2012).
?
?```````````````````````````````````````````````````````````````````````````````
?Zhou, Y., Lemmon, E.W., and Wu, J., 2012.
?
!```````````````````````````````````````````````````````````````````````````````
1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau))
1.169909 1.0 !ai, ti for [ai*log(tau**ti)] terms
12.6528905042467272 0.0 !aj, ti for [ai*tau**ti] terms
-0.4597586328446329 1.0 !aj, ti for [ai*tau**ti] terms
4.44312 160.0 !aj, ti for [ai*log(1-exp(-ti/T)] terms
2.862794 190.0
24.83298 1333.0
16.26077 3496.0
#AUX !---Auxiliary function for PH0
PH0 !Ideal gas Helmholtz form for m-xylene of Zhou et al. (2012).
?
?```````````````````````````````````````````````````````````````````````````````
?Zhou, Y., Lemmon, E.W., and Wu, J., 2012.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
1 2 4 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh
1.169909 1.0 !ai, ti for [ai*log(tau**ti)] terms
12.652887 0.0 !aj, ti for [ai*tau**ti] terms
-0.45975624 1.0
4.44312 -0.2593655271 !aj, ti for [ai*log(1-exp(ti*tau)] terms
2.862794 -0.3079965634
24.83298 -2.1608390475
16.26077 -5.6671367667
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
#ETA !---Viscosity---
VS6 !Pure fluid viscosity model for m-xylene of Cao et al. (2016).
:DOI: 10.1063/1.4941241
?
?```````````````````````````````````````````````````````````````````````````````
?Cao, F.L., Meng, X.Y., Wu, J.T., and Vesovic, V.,
? "Reference Correlation of the Viscosity of Meta-Xylene from 273 K to 673 K and Up to 200 MPa,"
? J. Phys. Chem. Ref. Data, 45, 013103, 2016.
? doi: 10.1063/1.4941241
?
?The overall uncertainty of the proposed correlation varies from 1% for the viscosity
? at atmospheric pressure to 5% for the viscosity at high pressures and temperatures.
?
!```````````````````````````````````````````````````````````````````````````````
225.3 !Lower temperature limit [K] Note: this is not the EOS lower limit
700.0 !Upper temperature limit [K]
200000.0 !Upper pressure limit [kPa]
15.0 !Maximum density [mol/L]
1 !Number of terms associated with dilute-gas function
CI3 !Pointer to reduced effective collision cross-section model
1.0 !Lennard-Jones coefficient sigma [nm] not used here
1.0 !Lennard-Jones coefficient epsilon/kappa [K] not used here
1.0 1.0 !Reducing parameters for T, eta
0.22115 1.0 !Chapman-Enskog term 0.021357*SQRT(MW)
0 !Number of terms for initial density dependence
0 10 0 0 0 0 !# resid terms: close-packed density; simple poly; numerator of rational poly; denominator of rat. poly; numerator of exponential; denominator of exponential
616.89 2.665 1.0 !Reducing parameters for T, rho, eta
35.3949 0.0 1.0 0. 0
-46.9262 -1.0 1.0 0. 0
11.6533 -2.0 1.0 0. 0
-0.26895 0.5 7.4666667 0. 0
0.320971 0.2 7.4666667 0. 0
-0.0290018 0.5 3.9666667 0. 0
1.72866e-10 -2.7 22.6666667 0. 0
14.7728 0.5 2.2666667 0. 0
-18.9852 1.5 1.2666667 0. 0
17.1128 0.5 1.0666667 0. 0
NUL !Pointer to the viscosity critical enhancement auxiliary function (none used)
#AUX !---Auxiliary function for the collision integral
CI3 !Collision integral model for m-xylene of Cao et al. (2016).
?
?```````````````````````````````````````````````````````````````````````````````
?Cao, F.L., Meng, X.Y., Wu, J.T., and Vesovic, V., 2016.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
3 !Number of terms
-1.4933 0 !Coefficient, power of Tstar
473.2 -1
-57033. -2
================================================================================
#TCX !---Thermal conductivity---
TC1 !Pure fluid thermal conductivity model for m-xylene of Mylona et al. (2014).
:DOI: 10.1063/1.4901166
?
?```````````````````````````````````````````````````````````````````````````````
?Mylona, S.K., Antoniadis, K.D., Assael, M.J. Huber, M.L., and Perkins, R.A.,
? "Reference Correlation of the Thermal Conductivity of o-Xylene, m-Xylene,
? p-Xylene, and Ethylbenzene from the Triple Point to 700 K and Moderate Pressures,"
? J. Phys. Chem. Ref. Data, 48, 043104, 2014.
?
?The estimated uncertainty for thermal conductivity of liquid and supercritical densities at temperatures
? from the triple point to 375 K is 3.6%, 5% at higher temperatures, and 6% for the dilute gas.
? Uncertainties in the critical region are much larger.
?
!```````````````````````````````````````````````````````````````````````````````
225.3 !Lower temperature limit [K]
700.0 !Upper temperature limit [K]
200000.0 !Upper pressure limit [kPa]
8.677 !Maximum density [mol/L]
7 3 !# terms for dilute gas function: numerator, denominator
616.89 0.001 !Reducing parameters for T, tcx
2.42107 0.
135.22 1.
-1231.68 2.
2968.82 3.
-1079.73 4.
186.86 5.
-12.9167 6.
-8.50118 0.
31.1646 1.
0.001 2.
10 0 !# terms for background gas function: numerator, denominator
616.89 2.665 1. !Reducing parameters for T, rho, tcx
-0.0679314 0. 1. 0.
0.225778 0. 2. 0.
-0.185693 0. 3. 0.
0.0619006 0. 4. 0.
-0.00711664 0. 5. 0.
0.0592537 1. 1. 0.
-0.162626 1. 2. 0.
0.133036 1. 3. 0.
-0.0449051 1. 4. 0.
0.0056186 1. 5. 0.
TK3 !Pointer to critical enhancement auxiliary function
#AUX !---Auxiliary function for the thermal conductivity critical enhancement
TK3 !Simplified thermal conductivity critical enhancement for m-xylene of Perkins et al. (2013).
?
?```````````````````````````````````````````````````````````````````````````````
?Perkins, R.A., Sengers, J.V., Abdulagatov, I.M., and Huber, M.L.,
? "Simplified Model for the Critical Thermal-Conductivity Enhancement in Molecular Fluids,"
? Int. J. Thermophys., 34(2):191-212, 2013. doi: 10.1007/s10765-013-1409-z
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
9 0 0 0 !# terms: terms, spare, spare, spare
1.0 1.0 1.0 !Reducing parameters for T, rho, tcx [mW/(m-K)]
0.63 !Nu (universal exponent)
1.239 !Gamma (universal exponent)
1.02 !R0 (universal amplitude)
0.063 !Z (universal exponent--not used for t.c., only viscosity)
1.0 !C (constant in viscosity eqn = 1/[2 - (alpha + gamma)/(2*nu)], but often set to 1)
0.235e-9 !Xi0 (amplitude) [m]
0.057 !Gam0 (amplitude) [-]
0.713e-9 !Qd_inverse (modified effective cutoff parameter) [m]
925.3 !Tref (reference temperature) [K]
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
@TRN !---ECS Transport---
ECS !Extended Corresponding States model (R134a reference); fitted to limited data for m-xylene.
?
?```````````````````````````````````````````````````````````````````````````````
?*** ESTIMATION METHOD *** NOT STANDARD REFERENCE QUALITY ***
?Unpublished; uses method described in the following reference:
?Huber, M.L., Laesecke, A., and Perkins, R.A.
? "Model for the Viscosity and Thermal Conductivity of Refrigerants, Including
? a New Correlation for the Viscosity of R134a,"
? Ind. Eng. Chem. Res., 42(13):3163-3178, 2003. doi: 10.1021/ie0300880
?
?VISCOSITY
? Measurements of the viscosity of benzene, toluene, and m-xylene at pressure up to 80 MPa
? Assael, M. J., Papadaki, M., Wakeham, W. A., Int. J. Thermophys., 1991, 12, 449-457 doi: 10.1007/BF00502361
?
?Estimated uncertainty in liquid phase viscosity for 303-323 K at pressures to 50 MPa approximately 5 %.
?
?THERMAL CONDUCTIVITY
? Watanabe, H., Kato, H., Thermal Conductivity and Thermal Diffusivity of Twenty-Nine Liquids: Alkenes, Cyclic (Alkanes, Alkenes, Alkadienes, Aromatics), and Deuterated Hydrocarbons J. Chem. Eng. Data, 2004, 49, 809-825
?
?Estimated uncertainty for the saturated liquid phase thermal conductivity between 258 and 330 K is 3%.
?
?The Lennard-Jones parameters were estimated with the method of Chung.
?
!```````````````````````````````````````````````````````````````````````````````
225.3 !Lower temperature limit [K]
700.0 !Upper temperature limit [K]
200000.0 !Upper pressure limit [kPa]
8.677 !Maximum density [mol/L]
FEQ PROPANE.FLD
VS1 !Model for reference fluid viscosity
TC1 !Model for reference fluid thermal conductivity
NUL !Large molecule identifier
1 !Lennard-Jones flag (0 or 1) (0 => use estimates)
0.58 !Lennard-Jones coefficient sigma [nm] for ECS method (estimated) sigma [nm] =0.809vc*(1/3)A
489.87 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method (estimated) eps/kappa [K] =Tc/1.2593
1 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2
0.00132 0. 0. 0. !Coefficient, power of T, spare1, spare2
3 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2
1.96357 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
-0.722142 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare
0.130396 0. 2. 0. !Coefficient, power of Tr, power of Dr, spare
2 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2
0.957985 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
0.0366063 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare
TK3 !Pointer to critical enhancement auxiliary function
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
#STN !---Surface tension---
ST1 !Surface tension model for m-xylene of Mulero et al. (2014).
:DOI: 10.1063/1.4878755
?
?```````````````````````````````````````````````````````````````````````````````
?Mulero, A. and Cachadiña, I.,
? "Recommended Correlations for the Surface Tension of Several Fluids
? Included in the REFPROP Program,"
? J. Phys. Chem. Ref. Data, 43, 023104, 2014.
? doi: 10.1063/1.4878755
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
1 !Number of terms in surface tension model
616.89 !Critical temperature used in fit (dummy)
0.06445 1.256 !Sigma0 and n
#PS !---Vapor pressure---
PS5 !Vapor pressure equation for m-xylene of Herrig (2013).
?
?```````````````````````````````````````````````````````````````````````````````
?Herrig, S., 2013.
?
?Functional Form: P=Pc*EXP[SUM(Ni*Theta^ti)*Tc/T] where Theta=1-T/Tc, Tc and Pc
? are the reducing parameters below, which are followed by rows containing Ni and ti.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
616.89 3534.6 !Reducing parameters
4 0 0 0 0 0 !Number of terms in equation
-7.5635 1.0
1.2857 1.5
-3.2346 3.1
-1.9018 5.6
#DL !---Saturated liquid density---
DL1 !Saturated liquid density equation for m-xylene of Herrig (2013).
?
?```````````````````````````````````````````````````````````````````````````````
?Herrig, S., 2013.
?
?Functional Form: D=Dc*[1+SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
? the reducing parameters below, which are followed by rows containing Ni and ti.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
616.89 2.665 !Reducing parameters
4 0 0 0 0 0 !Number of terms in equation
0.43346 0.16
3.8716 0.6
-3.0144 1.0
1.6190 1.5
#DV !---Saturated vapor density---
DV3 !Saturated vapor density equation for m-xylene of Herrig (2013).
?
?```````````````````````````````````````````````````````````````````````````````
?Herrig, S., 2013.
?
?Functional Form: D=Dc*EXP[SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
? the reducing parameters below, which are followed by rows containing Ni and ti.
?
!```````````````````````````````````````````````````````````````````````````````
0. !
10000. !
0. !
0. !
616.89 2.665 !Reducing parameters
5 0 0 0 0 0 !Number of terms in equation
-1.1597 0.26
-6.0358 0.78
-16.712 2.6
-45.482 5.7
-98.418 11.7
@END
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