R14 !short name 75-73-0 !CAS number tetrafluoromethane FC-14 !synonym1 R-14 !synonym2 88.0046 !molecular weight [g/mol] 89.54 !triple pt temperature [K]; Simon (1967) Cryogenics 7(6):138 145.10 !normal boiling pt [K] 227.51 !critical temperature [K] 3750.0 !critical pressure [kPa] 7.1094194 !critical density [mol/L] 0.1785 !acentric factor 0.0 !dipole moment [Debye] OTH !default reference state 300.0d0 1.0d0 38242.1052d0 194.634115d0 !tref, Pref, Href, Sref (corresponds to u,s = 0 @ Ttp) 6.001 !version number ! compiled by Mark McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 05-30-97 MM, original version ! 07-02-97 EWL, add Bender EOS from Platzer ! 10-24-97 MM, read in f_int term in Eucken correlation in ECS method for t.c. ! change reference fluid EOS for ECS-transport from BWR to FEQ #EOS !equation of state specification FEQ fundamental (Helmholtz) equation of state; Platzer et al. (1990). ?LITERATURE REFERENCE \ ?B. Platzer, A. Polt, and G. Maurer. Thermophysical properties of refrigerants. ? Berlin: Springer-Verlag (1990).\ ?\ !end of info section 98.94 !lower temperature limit [K] 623.23 !upper temperature limit [K] 50780.0 !upper pressure limit [kPa] 20.764 !maximum density [mol/L] CPP !pointer to Cp0 model 88.01 !molecular weight [g/mol] 98.94 !triple point temperature [K] 0.64144 !pressure at triple point [kPa] 20.764 !density at triple point [mol/L] 145.10 !normal boiling point temperature [K] 0.1785 !acentric factor 227.51 3750.0 7.1094194 !Tc [K], pc [kPa], rhoc [mol/L] 227.51 7.1094194 !reducing parameters [K, mol/L] 8.31451 !gas constant [J/mol-K] 22 5 0 0 0 0 !Nterm, Ncoeff per term -0.334698748966d+0 3.000 0.00 0 0.0 !a(i),t(i),d(i),l(i),g(i) 0.586690904687d+0 4.000 0.00 0 0.0 -0.147068929692d+0 5.000 0.00 0 0.0 0.103999039623d+1 0.000 1.00 0 0.0 -0.245792025288d+1 1.000 1.00 0 0.0 0.799614557889d+0 2.000 1.00 0 0.0 -0.749498954929d+0 3.000 1.00 0 0.0 0.152177772502d+0 4.000 1.00 0 0.0 -0.293408331764d+0 0.000 2.00 0 0.0 0.717794502866d+0 1.000 2.00 0 0.0 -0.426467444199d-1 2.000 2.00 0 0.0 0.226562749365d+0 0.000 3.00 0 0.0 -0.391091694003d+0 1.000 3.00 0 0.0 -0.257394804936d-1 0.000 4.00 0 0.0 0.554844884782d-1 1.000 4.00 0 0.0 0.610988261204d-2 1.000 5.00 0 0.0 0.334698748966d+0 3.000 0.00 2 0.99832625d0 -0.586690904687d+0 4.000 0.00 2 0.99832625d0 0.147068929692d+0 5.000 0.00 2 0.99832625d0 -0.190315426142d+0 3.000 2.00 2 0.99832625d0 0.716157133959d+0 4.000 2.00 2 0.99832625d0 -0.703161904626d+0 5.000 2.00 2 0.99832625d0 @EOS !equation of state specification ECS extended corresponding states model w/ T-dependent shape factors. ?LITERATURE REFERENCE \ ?Huber, M.L. and Ely, J.F. A predictive extended corresponding states model for ? pure and mixed refrigerants including an equation of state for R134a. ? Int. J. Refrigeration 17:18-31 (1994).\ ?\ ?the ideal-gas contribution is computed with a fit based on the values of: \ ?Chase, M.W., Davies, C.A., Downey, J.R., Frurip, D.J., McDonald, R.A. and ? Syverd, A.N. (1985). JANAF Thermochemical Tables, Third Edition. J. Phys. Chem. ? Ref. Data 14(suppl. 1): 1-1856.\ ?\ ?and \ ?Rodgers, A.S., Chao, J., Wilhoit, R.C. and Zwolinski, B.J. (1974). Ideal gas ? thermodynamic properties of eight chloro- and fluoromethanes. J. Phys. Chem. ? Ref. Data 3: 117-140.\ ?\ !end info 105. !lower temperature limit [K] 300.00 !upper temperature limit [K] 40000.0 !upper pressure limit [kPa] 20.5053 !maximum density [mol/L] (sat liq density at Tmin) CP1 !pointer to Cp0 model R134a.fld BWR !pointer to reference fluid model 0.32668033 !acentric factor for R134a used in shape factor correlation 0.259147 !critical compressibility for R134a used in correlation 0.17607 !acentric factor for fluid used in shape factor correlation 227.60 !critical temperature [K] 3734.2 !critical pressure [kPa] 7.14285714 !critical density [mol/L] (Vc = 0.14 L/mol) 2 !number of temperature coefficients for 'f' shape factor 0.10721687d+0 0 !alpha1 of Huber & Ely -0.55228215d+0 1 !alpha2 of Huber & Ely (log(Tr) term) 0 !number of density coefficients for 'f' shape factor 2 !number of temperature coefficients for 'h' shape factor -0.54054611d+0 0 !beta1 of Huber & Ely 0.28813658d+0 1 !beta2 of Huber & Ely (log(Tr) term) 0 !number of density coefficients for 'h' shape factor #AUX !auxiliary model specification CPP polynomial fit for ideal gas heat capacity ?LITERATURE REFERENCE \ ?B. Platzer, A. Polt, and G. Maurer. Thermophysical properties of refrigerants. ? Springer-Verlag, Berlin (1990).\ ?\ !end of info section 98.94 !lower temperature limit [K] 623.23 !upper temperature limit [K] 0.0 !upper pressure limit [kPa] 0.0 !maximum density [mol/L] 1.000 8.31451 !reducing parameters for T, Cp0 5 0 !Nterms: polynonial, exponential 0.39465247d+1 0.0 -0.88586725d-2 1.0 0.13939626d-3 2.0 -0.30056204d-6 3.0 0.20504001d-9 4.0 #AUX !auxiliary model specification CP1 polynomial fit for ideal gas heat capacity ?LITERATURE REFERENCE \ ?polynomial fit for ideal gas heat capacity based on values of: \ ?Chase, M.W., Davies, C.A., Downey, J.R., Frurip, D.J., McDonald, R.A. and ? Syverd, A.N. (1985). JANAF Thermochemical Tables, Third Edition. J. Phys. Chem. ? Ref. Data 14(suppl. 1): 1-1856.\ ?\ ?and \ ?Rodgers, A.S., Chao, J., Wilhoit, R.C. and Zwolinski, B.J. (1974). Ideal gas ? thermodynamic properties of eight chloro- and fluoromethanes. J. Phys. Chem. ? Ref. Data 3: 117-140.\ ?\ !end info 100.0 !lower temperature limit [K] 500.0 !upper temperature limit [K] 0.00 !upper pressure limit [kPa] 0.00 !maximum density [mol/L] 1.0d0 1.0d0 !reducing parameters for T, Cp0 4 0 !Nterms: polynonial, exponential 2.38962d+1 0.00 !c(i), power of T 8.61597d-2 1.00 2.34053d-4 2.00 -3.60942d-7 3.00 #TRN !transport model specification ECS Extended Corresponding States model for transport props (R134a reference). ?LITERATURE REFERENCES \ ?Klein, S.A., McLinden, M.O. and Laesecke, A. (1997). An improved extended ? corresponding states method for estimation of viscosity of pure refrigerants ? and mixtures. Int. J. Refrigeration 20: 208-217. \ ?\ ?Huber, M.L., Friend, D.G. and Ely, J.F. Prediction of the thermal ? conductivity of refrigerants and refrigerant mixtures. ? Fluid Phase Equilibria 80: 249-261 (1992). \ ?\ ?No experimental transport data are available for this fluid. The values ? calculated with the ECS method are thus predictive and will have greater ? uncertainties.\ ?\ ?The Lennard-Jones parameters are estimated.\ ? !end of info section 105. !lower temperature limit [K] 300.00 !upper temperature limit [K] 40000.0 !upper pressure limit [kPa] 20.50 !maximum density [mol/L] (sat liq density at Tmin) FEQ R134a.fld VS1 !model for reference fluid viscosity TC1 !model for reference fluid thermal conductivity 0 !Lennard-Jones flag (0 or 1) (0 => use estimates) 0.00000 !Lennard-Jones coefficient Sigma [nm] 000.00 !L-J coefficient epsilon/kB [K] 1 0 0 !number of terms in f_int term in Eucken correlation, spare1, spare 2 1.3200d-3 0.0 0.0 0.0 !coeff, power of T, spare 1, spare 2 0 0 0 !number of terms in psi (visc shape factor): poly,spare1,spare2 0 0 0 !number of terms in chi (t.c. shape factor): poly,spare1,spare2 #STN !surface tension specification ST1 surface tension model ?LITERATURE REFERENCE \ ?Soares, V.A.M., Almeida, B.J.V.S., McLure, I.A. and Higgins, R.A. (1986). ? Surface tension of pure and mixed simple substances at low temperature. Fluid ? Phase Equilibria 32: 9-16.\ ?\ ?Note: Soares et al. report results for two samples of R14. The values for ? the higher purity "Sheffield" sample are adopted here. ?\ !end info 86.4 !lower temperature limit [K] 227.51 !upper temperature limit [K] 0.00 !(dummy) upper pressure limit 0.00 !(dummy) maximum density 1 !number of terms 227.50d0 !critical temperature used in fit (dummy) 0.043721d0 1.26d0 !sigma0 and n @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890