403 lines
20 KiB
Plaintext
403 lines
20 KiB
Plaintext
R14 !Short name
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75-73-0 !CAS number
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Tetrafluoromethane !Full name
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CF4 !Chemical formula {CF4}
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FC-14 !Synonym
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88.0046 !Molar mass [g/mol]
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89.54 !Triple point temperature [K] of Simon (1967) Cryogenics 7(6):138
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145.10 !Normal boiling point [K]
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227.51 !Critical temperature [K]
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3750.0 !Critical pressure [kPa]
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7.1094194 !Critical density [mol/L]
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0.1785 !Acentric factor
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0.0 !Dipole moment [Debye]; (exactly zero due to symmetry)
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OTH !Default reference state
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300.0 1.0 38242.1052 194.634115 !Tref, Pref, Href, Sref (corresponds to u,s = 0 @ Ttp)
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10.0 !Version number
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1982 !UN Number :UN:
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halocb !Family :Family:
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???? !Heating value (upper) [kJ/mol] :Heat:
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7390. !GWP (IPCC 2007) :GWP:
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110000. !RCL (ppm v/v, ASHRAE Standard 34, 2010) :RCL:
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A1 !Safety Group (ASHRAE Standard 34, 2010) :Safety:
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1S/CF4/c2-1(3,4)5 !Standard InChI String :InChi:
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TXEYQDLBPFQVAA-UHFFFAOYSA-N !Standard InChI Key :InChiKey:
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???? !Alternative fluid for mixing rules :AltID:
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dba9f950 !Hash number from InChI Key :Hash:
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!The fluid files contain general information about the fluid in the first 15 to 20 lines, followed by sections for the
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! equations of state, transport equations, and auxiliary equations. Equations of state are listed first. The NIST recommended
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! equations begin with a hash mark (#). The secondary equations begin with the @ symbol. These symbols can be swapped to
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! select a secondary equation as primary and the primary as secondary. The equation of state section also contains auxiliary
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! equations for the ideal gas heat capacity or ideal gas Helmholtz energy. Below the equations of state (both primary and
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! secondary) are the transport equations, first viscosity and then thermal conductivity. These are then followed by the
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! secondary equations if available. The transport section also contains auxiliary equations required to calculate either the
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! dilute gas state or the critical enhancement. At the end of the file are additional but not necessary auxiliary equations,
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! including simple equations for the vapor pressure, saturated liquid and vapor densities, melting line (for some fluids), and
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! sublimation line (for even fewer fluids). This section also contains the equations for dielectric constant and surface
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! tension if available. The sections are divided by different symbols (these being _-+=^*~) to aid the eye in locating a
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! particular section. Secondary equations are indented 10 spaces to avoid confusion with the NIST recommended equations. The
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! end of the fluid file is marked with @END. Anything below that is ignored.
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! compiled by M. McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado
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! 05-30-97 MM, Original version.
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! 07-02-97 EWL, Add Bender EOS from Platzer.
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! 05-10-02 MLH, Add LJ parameters, viscosity and thermal conductivity fits.
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! 04-19-04 MLH, Update transport references.
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! 08-03-05 EWL, Change ttrp in Platzer EOS below to 89.54 K, changed lower limit to 120 K.
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! 08-17-10 IDC, Add ancillary equations.
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! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012).
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! 01-05-16 MLH, Change TK6 to TK3.
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________________________________________________________________________________
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#EOS !---Equation of state---
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FEQ !Helmholtz equation of state for R-14 of Platzer et al. (1990).
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:TRUECRITICALPOINT: 227.396 7.124455 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T)
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:DOI:
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:WEB: https://www.springer.com/in/book/9783662026106
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Platzer, B., Polt, A., and Maurer, G.,
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? "Thermophysical Properties of Refrigerants,"
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? Berlin, Springer-Verlag, 1990.
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?
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?The uncertainties are 0.5% in density, 1% in vapor pressure, and 5% in
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? heat capacities.
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?
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!```````````````````````````````````````````````````````````````````````````````
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120.0 !Lower temperature limit [K]
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623.0 !Upper temperature limit [K]
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51000.0 !Upper pressure limit [kPa]
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20.764 !Maximum density [mol/L]
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CPP !Pointer to Cp0 model
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88.01 !Molar mass [g/mol]
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89.54 !Triple point temperature [K]
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0.1012 !Pressure at triple point [kPa]
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21.17 !Density at triple point [mol/L]
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145.10 !Normal boiling point temperature [K]
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0.1785 !Acentric factor
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227.51 3750.0 7.1094194 !Tc [K], pc [kPa], rhoc [mol/L]
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227.51 7.1094194 !Reducing parameters [K, mol/L]
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8.31451 !Gas constant [J/mol-K]
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22 5 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms
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-0.334698748966 3. 0. 0. 0. !a(i),t(i),d(i),l(i)
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0.586690904687 4. 0. 0. 0.
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-0.147068929692 5. 0. 0. 0.
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1.03999039623 0. 1. 0. 0.
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-2.45792025288 1. 1. 0. 0.
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0.799614557889 2. 1. 0. 0.
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-0.749498954929 3. 1. 0. 0.
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0.152177772502 4. 1. 0. 0.
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-0.293408331764 0. 2. 0. 0.
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0.717794502866 1. 2. 0. 0.
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-0.0426467444199 2. 2. 0. 0.
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0.226562749365 0. 3. 0. 0.
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-0.391091694003 1. 3. 0. 0.
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-0.0257394804936 0. 4. 0. 0.
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0.0554844884782 1. 4. 0. 0.
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0.00610988261204 1. 5. 0. 0.
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0.334698748966 3. 0. 2. 0.99832625
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-0.586690904687 4. 0. 2. 0.99832625
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0.147068929692 5. 0. 2. 0.99832625
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-0.190315426142 3. 2. 2. 0.99832625
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0.716157133959 4. 2. 2. 0.99832625
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-0.703161904626 5. 2. 2. 0.99832625
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#AUX !---Auxiliary function for Cp0
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CPP !Ideal gas heat capacity function for R-14 of Platzer et al. (1990).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Platzer, B., Polt, A., and Maurer, G., 1990.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1.0 8.31451 !Reducing parameters for T, Cp0
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5 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
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3.9465247 0.0
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-0.0088586725 1.0
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0.00013939626 2.0
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-0.30056204e-6 3.0
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0.20504001e-9 4.0
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#AUX !---Auxiliary function for PX0
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PX0 !Helmholtz energy ideal-gas function for R-14 of Platzer et al. (1990).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Platzer, B., Polt, A., and Maurer, G., 1990.
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?
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!```````````````````````````````````````````````````````````````````````````````
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1 6 0 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau))
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2.9465247 1.0 !ai, ti for [ai*log(tau**ti)] terms
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-8.5391328033953542 0.0 !aj, ti for [ai*tau**ti] terms
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13.4878238763322749 1.0 !aj, ti for [ai*tau**ti] terms
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-0.0088586725 -1.0
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0.00013939626 -2.0
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-0.30056204e-6 -3.0
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0.20504001e-9 -4.0
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++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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#TRN !---ECS Transport---
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ECS !Extended Corresponding States model (Nitrogen reference); fitted to data for R-14.
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:DOI: 10.1021/ie0300880
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Unpublished; uses method described in the following reference:
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?Huber, M.L., Laesecke, A., and Perkins, R.A.,
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? "Model for the Viscosity and Thermal Conductivity of Refrigerants, Including
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? a New Correlation for the Viscosity of R134a,"
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? Ind. Eng. Chem. Res., 42(13):3163-3178, 2003. doi: 10.1021/ie0300880
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?
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?THERMAL CONDUCTIVITY
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? The ECS parameters for thermal conductivity were based in part on the data of:
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? Imaishi, N., Kestin, J., Paul, R., "Thermal Conductivity of Carbon Tetrafluoride with Argon and Helium," Int. J. Thermophys., 6(1):3-20, 1985. doi: 10.1007/BF00505789
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? Oshen, S., Rosenbaum, B.M., Thodos, G., "Thermal Conductivity of Carbon Tetrafluoride in the Dense Gaseous Region," J. Chem. Phys., 46(8):2939-2944, 1967. doi: 10.1063/1.1841159
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? Rosenbaum, B.M., Thodos, G., "Thermal Conductivity of Mixtures in the Dense Gaseous State: the Methane-Carbon Tetrafluoride System," Physica, 37:442-456, 1967. doi: 10.1016/0031-8914(67)90199-1
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? Millat, J., Ross, M., Wakeham, W.A., and Zalaf, M., "The Thermal Conductivity of Neon, Methane and Tetrafluoromethane," Physica, 148A:124-152, 1988. doi: 10.1016/0378-4371(88)90138-0
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? Zaporozhan, G.V. and Geller, V.Z., "Experimental Investigation of the Thermal Conductivity Coefficient of Freons R-13 and R-14 at Low Temperature," Zh. Fiz. Khim., 51:1056-9, 1977.
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? Average absolute deviations of the fit from the experimental data are:
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? Imaishi: 3.79%; Oshen: 3.94%; Rosenbaum: 9.29%; Millat: 2.17%;
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? Zaporozhan: 5.50%.
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?
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?VISCOSITY
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? The ECS parameters for viscosity were based in part on the data of:
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? Kestin, J., Khalifa, H.E., Ro, S.T., and Wakeham, W.A., "The Viscosity and Diffusion Coefficients of Eighteen Binary Gaseous Systems," Physica, 88A, 242-260, 1977. doi: 10.1016/0378-4371(77)90003-6
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? Maitland, G.C., Smith, E.B., "Viscosities of Binary Gas Mixtures at High Temperatures," J. Chem. Soc. Trans Far. Soc I, 70, 1191-1211, 1974. doi: 10.1039/f19747001191
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? Rasskazov, D.C., Babikov, Yu. M., and Filatov, N. Ya., "Experimental Investigation of Viscosity of Some Methane Row Refrigerants," Tr. Mosk. Energ. Inst., No. 234:90-5, 1975.
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? Ivanchenko, S.I., "Dynamic Viscosity Investigation of Freons of Methane and Ethane Rows," Ph.D. Dissertation, Tekhnol. Inst. Pisch. Promst., Odessa, USSR, 1974.
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? Average absolute deviations of the fit from the experimental data are:
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? Kestin: 0.97%; Maitland: 0.98%; Rasskazov: 2.01%; Ivanchenko: 1.20%.
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?
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?The Lennard-Jones parameters were taken from Millat, J., Vesovic, V., and Wakeham, W.A., "The Viscosity of Nitrous Oxide and Tetrafluoromethane in the Limit of Zero Density," Int. J. Thermophys., 12(2):265-273, 1991. doi: 10.1007/BF00500751
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?
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!```````````````````````````````````````````````````````````````````````````````
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89.54 !Lower temperature limit [K]
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623.0 !Upper temperature limit [K]
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51000.0 !Upper pressure limit [kPa]
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20.764 !Maximum density [mol/L]
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FEQ NITROGEN.FLD
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VS1 !Model for reference fluid viscosity
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TC1 !Model for reference fluid thermal conductivity
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NUL !Large molecule identifier
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1 !Lennard-Jones flag (0 or 1) (0 => use estimates)
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0.4543 !Lennard-Jones coefficient sigma [nm] for ECS method
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164.44 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method
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2 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2
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0.00119864 0. 0. 0. !Coefficient, power of T, spare1, spare2
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1.90048e-7 1. 0. 0. !Coefficient, power of T, spare1, spare2
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2 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2
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1.10941 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
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-0.0630268 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare
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1 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2
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1.04418 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare
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TK3 !Pointer to critical enhancement auxiliary function
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#AUX !---Auxiliary function for the thermal conductivity critical enhancement
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TK3 !Simplified thermal conductivity critical enhancement for R-14 of Olchowy and Sengers (1989).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Olchowy, G.A. and Sengers, J.V.,
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? "A Simplified Representation for the Thermal Conductivity of Fluids in the Critical Region,"
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? Int. J. Thermophys., 10:417-426, 1989. doi: 10.1007/BF01133538
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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9 0 0 0 !# terms: CO2-terms, spare, spare, spare
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1.0 1.0 1.0 !Reducing parameters for T, rho, tcx [mW/(m-K)]
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0.63 !Nu (universal exponent)
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1.239 !Gamma (universal exponent)
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1.03 !R0 (universal amplitude)
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0.063 !Z (universal exponent--not used for t.c., only viscosity)
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1.0 !C (constant in viscosity eqn = 1/[2 - (alpha + gamma)/(2*nu)], but often set to 1)
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0.194e-9 !Xi0 (amplitude) [m]
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0.0496 !Gam0 (amplitude) [-]
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2.26566e-10 !Qd_inverse (modified effective cutoff parameter) [m]; fitted to data
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341.265 !Tref (reference temperature)=1.5*Tc [K]
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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#STN !---Surface tension---
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ST1 !Surface tension model for R-14 of Mulero et al. (2012).
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:DOI: 10.1063/1.4768782
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Mulero, A., Cachadiña, I., and Parra, M.I.,
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? "Recommended Correlations for the Surface Tension of Common Fluids,"
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? J. Phys. Chem. Ref. Data, 41(4), 043105, 2012. doi: 10.1063/1.4768782
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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1 !Number of terms in surface tension model
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227.51 !Critical temperature used in fit (dummy)
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0.0423 1.24 !Sigma0 and n
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#PS !---Vapor pressure---
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PS5 !Vapor pressure equation for R-14 of Cullimore (2010).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Cullimore, I.D., 2010.
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?
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?Functional Form: P=Pc*EXP[SUM(Ni*Theta^ti)*Tc/T] where Theta=1-T/Tc, Tc and Pc
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? are the reducing parameters below, which are followed by rows containing Ni and ti.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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227.51 3750.0 !Reducing parameters
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5 0 0 0 0 0 !Number of terms in equation
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-6.1905 1.0
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-9.1398 1.5
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12.192 1.64
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-4.7215 2.5
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-2.0439 7.3
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#DL !---Saturated liquid density---
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DL1 !Saturated liquid density equation for R-14 of Cullimore (2010).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Cullimore, I.D., 2010.
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?
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?Functional Form: D=Dc*[1+SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
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? the reducing parameters below, which are followed by rows containing Ni and ti.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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227.51 7.1094194 !Reducing parameters
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5 0 0 0 0 0 !Number of terms in equation
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-1.0612 0.1
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4.4343 0.24
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-3.8753 0.4
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2.9825 0.6
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0.30746 3.9
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#DV !---Saturated vapor density---
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DV3 !Saturated vapor density equation for R-14 of Cullimore (2010).
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Cullimore, I.D., 2010.
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?
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?Functional Form: D=Dc*EXP[SUM(Ni*Theta^ti)] where Theta=1-T/Tc, Tc and Dc are
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? the reducing parameters below, which are followed by rows containing Ni and ti.
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?
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!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
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0. !
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227.51 7.1094194 !Reducing parameters
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6 0 0 0 0 0 !Number of terms in equation
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-55.804 0.713
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108.68 0.84
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-64.257 1.0
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-1195.4 5.8
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3668.8 6.3
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-2595.6 6.6
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@END
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c 1 2 3 4 5 6 7 8
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c2345678901234567890123456789012345678901234567890123456789012345678901234567890
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@EOS !Equation of state specification
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ECS Thermodynamic Extended Corresponding States model w/ T-dependent shape factors.
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?
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?```````````````````````````````````````````````````````````````````````````````
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?Huber, M.L. and Ely, J.F.,
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? "A predictive extended corresponding states model for pure and mixed
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? refrigerants including an equation of state for R134a,"
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? Int. J. Refrigeration, 17(1):18-31, 1994. doi: 10.1016/0140-7007(94)90083-3
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?
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?the ideal-gas contribution is computed with a fit based on the values of:
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? Chase, M.W., Davies, C.A., Downey, J.R., Frurip, D.J., McDonald, R.A., and Syverd, A.N.,
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? "JANAF Thermochemical Tables,"
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? Third Edition, J. Phys. Chem. Ref. Data, 14(suppl. 1):1-1856, 1985.
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?
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?and
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? Rodgers, A.S., Chao, J., Wilhoit, R.C., and Zwolinski, B.J.,
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? "Ideal gas thermodynamic properties of eight chloro- and fluoromethanes,"
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? J. Phys. Chem. Ref. Data, 3:117-140, 1974. doi: 10.1063/1.3253135
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?
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!```````````````````````````````````````````````````````````````````````````````
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105.0 !Lower temperature limit [K]
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300.0 !Upper temperature limit [K]
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40000.0 !Upper pressure limit [kPa]
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20.5053 !Maximum density [mol/L] (sat liq density at Tmin)
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CP1 !Pointer to Cp0 model
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R134A.FLD
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BWR !Pointer to reference fluid model
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0.32668033 !Acentric factor for R134a used in shape factor correlation
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0.259147 !Critical compressibility for R134a used in correlation
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0.17607 !Acentric factor for fluid used in shape factor correlation
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227.60 !Critical temperature [K]
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3734.2 !Critical pressure [kPa]
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7.14285714 !Critical density [mol/L] (Vc = 0.14 L/mol)
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2 !Number of temperature coefficients for 'f' shape factor
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0.10721687 0. ! alpha1 of Huber & Ely
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-0.55228215 1. ! alpha2 (log(Tr) term)
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0 !Number of density coefficients for 'f' shape factor
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2 !Number of temperature coefficients for 'h' shape factor
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-0.54054611 0. ! beta1 of Huber & Ely
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0.28813658 1. ! beta2 (log(Tr) term)
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0 !Number of density coefficients for 'h' shape factor
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|
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@AUX !---Auxiliary model specification for Cp0
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CP1 ideal gas heat capacity function
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?
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?```````````````````````````````````````````````````````````````````````````````
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?polynomial fit for ideal gas heat capacity based on values of:
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? Chase, M.W., Davies, C.A., Downey, J.R., Frurip, D.J., McDonald, R.A., and Syverd, A.N.,
|
|
? "JANAF Thermochemical Tables,"
|
|
? Third Edition, J. Phys. Chem. Ref. Data, 14(suppl. 1):1-1856, 1985.
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|
?and
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? Rodgers, A.S., Chao, J., Wilhoit, R.C., and Zwolinski, B.J.,
|
|
? "Ideal gas thermodynamic properties of eight chloro- and fluoromethanes,"
|
|
? J. Phys. Chem. Ref. Data, 3:117-140, 1974. doi: 10.1063/1.3253135
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|
?
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|
!```````````````````````````````````````````````````````````````````````````````
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0. !
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10000. !
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0. !
|
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0. !
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1.0 1.0 !Reducing parameters for T, Cp0
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|
4 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh
|
|
23.8962 0.0
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0.0861597 1.0
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|
0.000234053 2.0
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|
-3.60942e-7 3.0
|