R115 !Short name 76-15-3 !CAS number Chloropentafluoroethane !Full name CClF2CF3 !Chemical formula {C2ClF5} CFC-115 !Synonym 154.466416 !Molar mass [g/mol] 173.75 !Triple point temperature [K] Aston et al.,J. Am. Chem. Soc.,1955,77,3939 233.932 !Normal boiling point [K] 353.1 !Critical temperature [K] 3129.0 !Critical pressure [kPa] 3.98 !Critical density [mol/L] 0.248 !Acentric factor 0.52 !Dipole moment [Debye]; value from REFPROP v5.10 IIR !Default reference state 10.0 !Version number 1020 !UN Number :UN: halocb !Family :Family: ???? !Heating value (upper) [kJ/mol] :Heat: 7370. !GWP (IPCC 2007) :GWP: 0.57 !ODP (WMO 2010) :ODP: 120000. !RCL (ppm v/v, ASHRAE Standard 34, 2010) :RCL: A1 !Safety Group (ASHRAE Standard 34, 2010) :Safety: 1S/C2ClF5/c3-1(4,5)2(6,7)8 !Standard InChI String :InChi: RFCAUADVODFSLZ-UHFFFAOYSA-N !Standard InChI Key :InChiKey: ???? !Alternative fluid for mixing rules :AltID: f7285250 !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 ! 06-09-97 EWL, Original version. ! 11-13-97 EWL, Add Platzer equation. ! 05-08-02 MLH, Add viscosity fit, revised thermal conductivity fit, added LJ parameters. ! 04-19-04 MLH, Update transport reference. ! 11-17-05 EWL, Add short Helmholtz equation. ! 08-17-10 IDC, Add ancillary equations. ! 12-06-12 EWL, Add surface tension coefficients of Mulero et al. (2012). ! 08-04-15 EWL, Minor update to match new manuscript. Refit the vapor density ancillary. ! 01-05-16 MLH, Change TK6 to TK3. ________________________________________________________________________________ #EOS !---Equation of state--- FEQ !Helmholtz equation of state for R-115 of Lemmon and Span (2015). :TRUECRITICALPOINT: 353.1 3.98 !True EOS critical point [K, mol/L] (where dP/dD=0 and d^2P/dD^2=0 at constant T) :DOI: 10.1021/acs.jced.5b00684 ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., ? "Thermodynamic Properties of R-227ea, R-365mfc, R-115, and R-13I1," ? J. Chem. Eng. Data, 60(12):3745-3758, 2015. doi: 10.1021/acs.jced.5b00684 ? ?The uncertainties are 0.5% in density and vapor pressure, and 1% in sound speed ? and heat capacity. ? !``````````````````````````````````````````````````````````````````````````````` 173.75 !Lower temperature limit [K] 550.0 !Upper temperature limit [K] 60000.0 !Upper pressure limit [kPa] 11.3 !Maximum density [mol/L] CPP !Pointer to Cp0 model 154.466416 !Molar mass [g/mol] 173.75 !Triple point temperature [K] 2.213 !Pressure at triple point [kPa] 11.3 !Density at triple point [mol/L] 233.932 !Normal boiling point temperature [K] 0.248 !Acentric factor 353.1 3129.0 3.98 !Tc [K], pc [kPa], rhoc [mol/L] 353.1 3.98 !Reducing parameters [K, mol/L] 8.3144598 !Gas constant [J/mol-K] 12 4 0 0 0 0 0 0 0 0 0 0 !# terms and # coefs/term for normal terms, Gaussian terms, and Gao terms 1.20873 0.25 1. 0. !a(i),t(i),d(i),l(i) -3.54460 1.25 1. 0. 0.745302 1.5 1. 0. 0.114128 0.25 3. 0. 4.36572e-4 0.875 7. 0. 0.988385 2.375 1. 1. 1.13878 2.0 2. 1. -0.0215633 2.125 5. 1. -0.630230 3.5 1. 2. 0.0167901 6.5 1. 2. -0.149412 4.75 4. 2. -0.0271153 12.5 2. 3. #AUX !---Auxiliary function for Cp0 CPP !Ideal gas heat capacity function for R-115 of Lemmon and Span (2015). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.3144598 !Reducing parameters for T, Cp0 1 2 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 4.0 0.0 7.142 289.0 10.61 1301.0 #AUX !---Auxiliary function for PX0 PX0 !Helmholtz energy ideal-gas function for R-115 of Lemmon and Span (2015). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 1 2 2 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)) 3.0 1.0 !ai, ti for [ai*log(tau**ti)] terms -13.4050037923356555 0.0 !aj, ti for [ai*tau**ti] terms 10.0015536023086682 1.0 !aj, ti for [ai*tau**ti] terms 7.142 289.0 !aj, ti for [ai*log(1-exp(-ti/T)] terms 10.61 1301.0 #AUX !---Auxiliary function for PH0 PH0 !Ideal gas Helmholtz form for R-115. ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1 2 2 0 0 0 0 0 !Nterms: ai*log(tau**ti); ai*tau**ti; ai*log(1-exp(bi*tau)); cosh; sinh 3.0 1.0 !ai, ti for [ai*log(tau**ti)] terms -13.4049986532 0.0 !aj, ti for [ai*tau**ti] terms 10.0015506914 1.0 7.142 -0.8184650241 !aj, ti for [ai*log(1-exp(ti*tau)] terms 10.61 -3.6845086378 -------------------------------------------------------------------------------- @EOS !---Equation of state--- FE1 !Bender equation of state for R-115 of Platzer et al. (1990). ? ?``````````````````````````````````````````````````````````````````````````````` ?Platzer, B., Polt, A., and Maurer, G., ? "Thermophysical properties of refrigerants," ? Berlin, Springer-Verlag, 1990. ? !``````````````````````````````````````````````````````````````````````````````` 200.0 !Lower temperature limit [K] 450.0 !Upper temperature limit [K] 7000.0 !Upper pressure limit [kPa] 10.7 !Maximum density [mol/L] CP1 !Pointer to Cp0 model 154.467 !Molar mass [g/mol] 200.0 !Triple point temperature [K] 16.213 !Pressure at triple point [kPa] 10.743 !Density at triple point [mol/L] 234.03 !Normal boiling point temperature [K] 0.2520 !Acentric factor 353.1 3160.0 3.9714 !Tc [K], pc [kPa], rhoc [mol/L] 353.1 3.9714 !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 -0.377294477051 3. 0. 0. 0. !a(i),t(i),d(i),l(i) -0.0695891789165 4. 0. 0. 0. 0.206972205161 5. 0. 0. 0. 0.266609543946 0. 1. 0. 0. -1.17158857583 1. 1. 0. 0. 0.817521154071 2. 1. 0. 0. -0.978729789251 3. 1. 0. 0. -0.17448244876 4. 1. 0. 0. 1.43598704796 0. 2. 0. 0. -2.65460417723 1. 2. 0. 0. 1.65212655822 2. 2. 0. 0. -0.588257570097 0. 3. 0. 0. 0.738774518022 1. 3. 0. 0. 0.296779702685 0. 4. 0. 0. -0.534330750773 1. 4. 0. 0. 0.0659766160237 1. 5. 0. 0. 0.377294477051 3. 0. 2. 1.50553819 0.0695891789165 4. 0. 2. 1.50553819 -0.206972205161 5. 0. 2. 1.50553819 -0.350603135603 3. 2. 2. 1.50553819 1.08682541098 4. 2. 2. 1.50553819 -0.619304197853 5. 2. 2. 1.50553819 @AUX !---Auxiliary function for Cp0 CP1 !Ideal gas heat capacity function for R-115. ? ?``````````````````````````````````````````````````````````````````````````````` ?Platzer, B., Polt, A., and Maurer, G., ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 1.0 8.31451 !Reducing parameters for T, Cp0 5 0 0 0 0 0 0 !Nterms: polynomial, exponential, cosh, sinh 2.4409547 0.0 0.053544743 1.0 -0.000081861429 2.0 0.10410538e-6 3.0 -0.71645701e-10 4.0 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ #TRN !---ECS Transport--- ECS !Extended Corresponding States model (R134a reference); fitted to data for R-115. :DOI: 10.1021/ie0300880 ? ?``````````````````````````````````````````````````````````````````````````````` ?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 ? ?THERMAL CONDUCTIVITY ? The ECS parameters for thermal conductivity were based in part on the data of: ? Hahne, E., Gross, U., and Song, Y.W., "The Thermal Conductivity of R115 in the Critical Region," Int. J. Thermophys., 10:687-700, 1989. doi: 10.1007/BF00507989 ? Yata, J., Minamiyama, T., and Tanaka, S., "Measurement of Thermal Conductivity of Liquid Fluorocarbons," Int. J. Thermophys., 5:209-218, 1984. ? Zaporozhan, G.V., Lenskiy, L.R., Baryshev, V.P., and Geller, V.Z., "Thermal Conductivities of Freons 218 and 115," Izv. Vyssh. Uchebn. Zaved., Energ., 18(10):146-60, 1975. ? Slusarev, V.V., "The Investigation of Thermal Conductivity of Freons of the Ethane Type of Fluorocarbons," Ph.D. Dissertation, Tekhnol. Inst. Pisch. Promst., Odessa, USSR, 1979. ? Average absolute deviations of the fit from the experimental data are: ? Hahne: 4.89%; Yata: 1.88%; Zaporozhan: 3.77%; Slusarev: 2.17%. Overall: 3.48%. ? ?VISCOSITY ? The ECS parameters for viscosity were based in part on the data of: ? Witzell, O.W. and Kamien, C.Z., "Effect of Pressure and Temperature on the Viscosity of Refrigerants in the Vapor Phase," ASHRAE Trans., 65:663-674, 1959. ? Kronberg, A.V., "Experimental and Theoretical Investigation of the Viscosity of Methane and Ethane Row's Refrigerants," Ph.D. Dissertation, Azer. Inst. Neft. Khim., Baku, USSR, 1979. ? Geller, V.Z., "Investigation of the Viscosity of Freons of the Methane, Ethane, and Propane Types. Summary of Experimental Data," Teplofiz. Svoistva Veshchestv. Mater., No. 15, Sychev, V.V., Ed., Standards Publ.: Moscow, pp. 89-114, 1980. ? Takahashi, M., Yokoyama, C., and Takahashi, S., Kagaku Kogaku Ronbunshu, 11(2):155-161, 1985. doi: 10.1252/kakoronbunshu.11.155 ? Average absolute deviations of the fit from the experimental data are: ? Witzell: 1.97%; Kronberg: 3.60%; Geller: 7.63%; Takahashi: 1.25%. ? Overall: 3.42%. ? ?The Lennard-Jones parameters were taken from Takahashi, M., Yokoyama, C., and Takahashi, S., Kagaku Kogaku Ronbunshu, 11(2):155-161, 1985. ? !``````````````````````````````````````````````````````````````````````````````` 173.75 !Lower temperature limit [K] 600.0 !Upper temperature limit [K] 200000.0 !Upper pressure limit [kPa] 17.9380 !Maximum density [mol/L] FEQ R134A.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) 0.5876 !Lennard-Jones coefficient sigma [nm] for ECS method 201.9 !Lennard-Jones coefficient epsilon/kappa [K] for ECS method 2 0 0 !Number of terms in f_int term in Eucken correlation, spare1, spare2 0.00125079 0. 0. 0. !Coefficient, power of T, spare1, spare2 2.96636e-7 1. 0. 0. !Coefficient, power of T, spare1, spare2 2 0 0 !Number of terms in psi (visc shape factor): poly,spare1,spare2 1.1838 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.0591896 0. 1. 0. !Coefficient, power of Tr, power of Dr, spare 2 0 0 !Number of terms in chi (t.c. shape factor): poly,spare1,spare2 1.03432 0. 0. 0. !Coefficient, power of Tr, power of Dr, spare -0.00216614 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-115 of Olchowy and Sengers (1989). ? ?``````````````````````````````````````````````````````````````````````````````` ?Olchowy, G.A. and Sengers, J.V., ? "A Simplified Representation for the Thermal Conductivity of Fluids in the Critical Region," ? Int. J. Thermophys., 10:417-426, 1989. doi: 10.1007/BF01133538 ? !``````````````````````````````````````````````````````````````````````````````` 0. ! 10000. ! 0. ! 0. ! 9 0 0 0 !# terms: CO2-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) 1.03 !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) 0.194e-9 !Xi0 (amplitude) [m] 0.0496 !Gam0 (amplitude) [-] 3.72933e-10 !Qd_inverse (modified effective cutoff parameter) [m]; fitted to data 529.65 !Tref (reference temperature)=1.5*Tc [K] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #STN !---Surface tension--- ST1 !Surface tension model for R-115 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 353.1 !Critical temperature used in fit (dummy) 0.04771 1.246 !Sigma0 and n #PS !---Vapor pressure--- PS5 !Vapor pressure equation for R-115 of Lemmon and Span (2015). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? ?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. ! 353.1 3129.0 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation -7.7016 1.0 4.3462 1.5 -4.0020 1.9 -6.5510 5.2 3.9278 6.0 #DL !---Saturated liquid density--- DL1 !Saturated liquid density equation for R-115 of Lemmon and Span (2015). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? ?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. ! 353.1 3.98 !Reducing parameters 5 0 0 0 0 0 !Number of terms in equation 18.245 0.556 -57.373 0.75 78.511 0.95 -50.979 1.2 14.361 1.5 #DV !---Saturated vapor density--- DV3 !Saturated vapor density equation for R-115 of Lemmon and Span (2015). ? ?``````````````````````````````````````````````````````````````````````````````` ?Lemmon, E.W. and Span, R., 2006. ? ?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. ! 353.1 3.98 !Reducing parameters 6 0 0 0 0 0 !Number of terms in equation -10.179 0.53 49.312 0.9 -150.13 1.2 219.87 1.5 -129.65 1.75 -54.218 6.0 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890