R114 !Short name 76-14-2 !CAS number 1,2-Dichloro-1,1,2,2-tetrafluoroethane ! full name CClF2CClF2 !Chemical formula {C2Cl2F4} CFC-114 !Synonym 170.921 !Molar mass [g/mol] 180.63 !Triple point temperature [K] 276.741 !Normal boiling point [K] 418.83 !Critical temperature [K] 3257.0 !Critical pressure [kPa] 3.3932 !Critical density [mol/L] 0.2523 !Acentric factor 0.658 !Dipole moment [Debye]; value from REFPROP v5.10 eval at NBP IIR !Default reference state 10.0 !Version number 1958 !UN Number :UN: halocb !Family :Family: ???? !Heating value (upper) [kJ/mol] :Heat: 10000. !GWP (IPCC 2007) :GWP: 0.58 !ODP (WMO 2010) :ODP: 20000. !RCL (ppm v/v, ASHRAE Standard 34, 2010) :RCL: A1 !Safety Group (ASHRAE Standard 34, 2010) :Safety: 1S/C2Cl2F4/c3-1(5,6)2(4,7)8 !Standard InChI String :InChi: DDMOUSALMHHKOS-UHFFFAOYSA-N !Standard InChI Key :InChiKey: ???? !Alternative fluid for mixing rules :AltID: b1698aa0 !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 ! 07-02-97 EWL, Original version. ! 08-01-05 EWL, Update triple point temperature. ! 11-13-06 MLH, Add LJ parameters. ! 08-17-10 IDC, Add ancillary equations. ! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012). ! 06-19-14 MLH, Update ECS viscosity coefficients and add TK3 block for k. ! 04-13-17 MLH, Revise ECS thermal conductivity, viscosity coeff. ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for R-114 of Platzer et al. (1990). :TRUECRITICALPOINT: 420.608 3.353847 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T) :DOI: :WEB: https://www.springer.com/in/book/9783662026106 ? ?``````````````````````````````````````````````````````````````````````````````` ?Platzer, B., Polt, A., and Maurer, G., ? "Thermophysical Properties of Refrigerants," ? Berlin, Springer-Verlag, 1990. ? ?The uncertainty in density is 0.2% up to 400 K and 1% at higher temperatures. ? The vapor pressure uncertainty is 1.5%. In the liquid phase, the uncertainty ? in isobaric heat capacity is 3%. ? !``````````````````````````````````````````````````````````````````````````````` 273.15 !Lower temperature limit [K] 507.0 !Upper temperature limit [K] 21000.0 !Upper pressure limit [kPa] 8.942 !Maximum density [mol/L] CPP !Pointer to Cp0 model 170.921 !Molar mass [g/mol] 180.63 !Triple point temperature [K] 0.2021 !Pressure at triple point [kPa] 10.4 !Density at triple point [mol/L] 276.741 !Normal boiling point temperature [K] 0.2523 !Acentric factor 418.83 3257.0 3.3932 !Tc [K], pc [kPa], rhoc [mol/L] 418.83 3.3932 !Reducing parameters [K, mol/L] 8.31451 !Gas constant [J/mol-K] 22 5 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms -0.340776521414 3. 0. 0. 0. !a(i),t(i),d(i),l(i) 0.32300139842 4. 0. 0. 0. -0.0424950537596 5. 0. 0. 0. 1.0793887971 0. 1. 0. 0. -1.99243619673 1. 1. 0. 0. -0.155135133506 2. 1. 0. 0. -0.121465790553 3. 1. 0. 0. -0.0165038582393 4. 1. 0. 0. -0.186915808643 0. 2. 0. 0. 0.308074612567 1. 2. 0. 0. 0.115861416115 2. 2. 0. 0. 0.0276358316589 0. 3. 0. 0. 0.108043243088 1. 3. 0. 0. 0.0460683793064 0. 4. 0. 0. -0.174821616881 1. 4. 0. 0. 0.0317530854287 1. 5. 0. 0. 0.340776521414 3. 0. 2. 1.21103865 -0.32300139842 4. 0. 2. 1.21103865 0.0424950537596 5. 0. 2. 1.21103865 -1.66940100976 3. 2. 2. 1.21103865 4.08693082002 4. 2. 2. 1.21103865 -2.41738963889 5. 2. 2. 1.21103865 #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for R-114 of Platzer et al. (1990). ? ?``````````````````````````````````````````````````````````````````````````````` ?Platzer, B., Polt, A., and Maurer, G., 1990. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 170.93 !Reducing parameters for T, Cp0 5 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 0.09765138 0.0 0.003240861 1.0 -0.000005895364 2.0 0.6737929e-8 3.0 -0.3546364e-11 4.0 #AUX !---Auxiliary function for PX0 PX0 !Helmholtz energy ideal-gas function for R-114 of Platzer et al. (1990). ? ?``````````````````````````````````````````````````````````````````````````````` ?Platzer, B., Polt, A., and Maurer, G., 1990. ? !``````````````````````````````````````````````````````````````````````````````` 1 6 0 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) 1.0075327543708852 1.0 !ai, ti for [ai*log(tau**ti)] terms -11.3866923427291784 0.0 !aj, ti for [ai*tau**ti] terms 10.9321087031209583 1.0 !aj, ti for [ai*tau**ti] terms 0.0666261409706978 -1.0 -0.121197839999e-03 -2.0 0.138519426598e-06 -3.0 -0.729067207132e-10 -4.0 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #TRN !---ECS Transport--- ECS !Extended Corresponding States model (Propane reference); fitted to data for R-114. :DOI: 10.6028/NIST.IR.8209 ? ?``````````````````````````````````````````````````````````````````````````````` ?Huber, M.L., "Models for the Viscosity, Thermal Conductivity, and Surface Tension ? of Selected Pure Fluids as Implemented in REFPROP v10.0," NISTIR 8209, 2018. ? doi: 10.6028/NIST.IR.8209 ? ?THERMAL CONDUCTIVITY ? The ECS parameters for thermal conductivity were based in part on the data of: ? Keyes, F.G., "Thermal Conductivity of Gases," Trans. ASME, 76:809-816, 1954. ? Fellows, B.R., Richard, R.G., and Shankland, I.R., "Thermal Conductivity Data for Some Environmentally Acceptable Fluorocarbons," Thermal Conductivity Volume 21, Eds. Cremers, C.J., Fine, H.A., pp. 311-325, 1990. ? Yata, J., Minamiyama, T., and Tanaka, S., "Measurement of Thermal Conductivity of Liquid Fluorocarbons," Int. J. Thermophys., 5:209-218, 1984. ? ?VISCOSITY ? The ECS parameters for viscosity were based in part on the data of: ? Kumagai, A. and Yokoyama, C., "Revised Viscosities of Saturated Liquid Halocarbon Refrigerants from 273 to 353 K," Int. J. Thermophys., 21(4):909-912, 2000. doi: 10.1023/A:1006666308831 ? Arnemann, M. and Kruse, H., "Liquid Viscosities of the Non-Azeotropic Binary Refrigerant Mixtures R22/R114, R22/R152a, R22/R142b," Actes Congr. Int. Froid, 18(2):379-383, 1991. ? ?The estimated uncertainty for thermal conductivity at temperatures to 380 K is 5%, 10% elsewhere. ?The estimated uncertainty for viscosity is 5% at pressures up to 20 MPa. ? ?The Lennard-Jones parameters were taken from fitting the data of Kamien and Witzell, 1959. ? !``````````````````````````````````````````````````````````````````````````````` 273.15 !Lower temperature limit [K] 507.0 !Upper temperature limit [K] 21000.0 !Upper pressure limit [kPa] 8.942 !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) 0.6480 !Lennard-Jones coefficient sigma [nm] for ECS method 174.0 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method 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 1.36002 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.209356 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare 0.0373222 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 1.2005 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.0533827 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare TK3 !Pointer to critical enhancement auxiliary function #AUX !---Auxiliary function for the thermal conductivity critical enhancement TK3 !Simplified thermal conductivity critical enhancement for R-114 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) 0.223e-9 !Xi0 (amplitude) [m] 0.059 !Gam0 (amplitude) [-] 6.56e-10 !Qd_inverse (modified effective cutoff parameter) [m] 628.25 !Tref (reference temperature) [K] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for R-114 of Mulero et al. (2012). :DOI: 10.1063/1.4768782 ? ?``````````````````````````````````````````````````````````````````````````````` ?Mulero, A., Cachadiņa, I., and Parra, M.I., ? "Recommended Correlations for the Surface Tension of Common Fluids," ? J. Phys. Chem. Ref. Data, 41(4), 043105, 2012. doi: 10.1063/1.4768782 ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 !Number of terms in surface tension model 418.83 !Critical temperature used in fit (dummy) 0.05239 1.258 !Sigma0 and n #PS !---Vapor pressure--- PS5 !Vapor pressure equation for R-114 of Cullimore (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Cullimore, I.D., 2010. ? ?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. ! 418.83 3257.0 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation -7.2195 1.0 1.6357 1.5 -1.4576 2.2 -6.9580 4.8 5.7181 6.2 #DL !---Saturated liquid density--- DL1 !Saturated liquid density equation for R-114 of Cullimore (2010). ? ?``````````````````````````````````````````````````````````````````````````````` ?Cullimore, I.D., 2010. ? ?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. ! 418.83 3.3932 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation 0.43023 0.095 22.722 0.93 -27.118 1.1 13.247 2.0 -9.0529 3.0 #DV !---Saturated vapor density--- DV3 !Saturated vapor density equation for R-114 of Lemmon (2017). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W., 2017. ? ?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. ! 418.83 3.3932 !Reducing parameters 6 0 0 0 0 0 !Number of terms in equation -0.25569 0.01 -6.1565 0.68 -16.786 2.57 -123.16 7.0 407.34 10.0 -718.10 12.0 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890