R236fa !short name (same as file name) 690-39-1 !CAS number 1,1,1,3,3,3-hexafluoropropane HFC-236fa !synonym1 R-236fa !synonym2 152.0393 !molecular weight [g/mol] 179.52 !triple pt temperature [K] 271.71 !normal boiling pt [K] 398.07 !critical temperature [K] 3200. !critical pressure [kPa] 3.626 !critical density [mol/L] 0.37721 !acentric factor 1.982 !dipole moment [Debye]; Goodwin & Mehl (1997) IJT 18:795-806 IIR !default reference state 6.001 !version number ! compiled by Mark McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 05-29-97 MM, original version ! 08-21-97 MM, purge exponentials from values read by GUI (e.g. model limits) ! 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 ! 11-25-97 MM, add dipole moment #EOS !equation of state specification BWR MBWR equation of state; Outcalt & McLinden (1995). ?LITERATURE REFERENCE \ ?S.L. Outcalt and M.O. McLinden. (1995). An equation of state for the ? thermodynamic properties of R236fa. NIST report to sponsor (U.S. Navy, David ? Taylor Model Basin) under contract N61533-94-F-0152. ?\ !end of info section 179.52 !lower temperature limit [K] 500.0 !upper temperature limit [K] 40000.0 !upper pressure limit [kPa] 11.30 !maximum density [mol/L] CPP !pointer to Cp0 model 152.0393d0 !molecular weight [g/mol] 179.52d0 !triple point temperature [K] 0.16d0 !pressure at triple point [kPa] 11.29d0 !density at triple point [mol/L] 271.71 d0 !normal boiling point temp [K] 0.37721d0 !acentric factor 398.07d0 3200.d0 3.626d0 !Tc [K], pc [kPa], rhoc [mol/L] 398.07d0 3.626d0 !reducing parameters [K, mol/L] 3.626d0 !gamma 0.08314471d0 !gas constant [L-bar/mol-K] 32 1 !Nterm, Ncoeff per term -0.661121874831d-01 0.861763902745d+01 -0.233732255968d+03 0.437486232843d+05 -0.539677761508d+07 -0.757588552002d-02 0.107379563512d+02 -0.106626588551d+05 -0.103047455432d+06 -0.194868091617d-02 0.438365228107d+01 -0.111207843880d+04 -0.263710051508d+00 0.477521163113d+02 0.197804035098d+04 -0.485710898935d+01 0.144821196401d+00 -0.221059322936d+02 0.926270169913d+00 0.577920666161d+07 -0.985511065626d+09 0.197199808018d+06 0.319420123094d+10 0.792946107314d+04 -0.693606295610d+06 0.849836259084d+02 0.209702051124d+07 0.110600369167d+01 0.953714711849d+02 -0.881815206562d-02 0.973194908842d+01 -0.935516922205d+03 #AUX !auxiliary model specification CPP polynomial fit for ideal gas heat capacity; Outcalt & McLinden (1995). ?LITERATURE REFERENCE \ ?S.L. Outcalt and M.O. McLinden. (1995). An equation of state for the ? thermodynamic properties of R236fa. NIST report to sponsor (U.S. Navy, David ? Taylor Model Basin) under contract N61533-94-F-0152. ?\ !end of info section 150.0 !lower temperature limit [K] 500.0 !upper temperature limit [K] 0.00 !upper pressure limit [kPa] 0.00 !maximum density [mol/L] 1.0 1.0 !reducing parameters for T, Cp0 3 0 !Nterms: polynonial, exponential 53.4662555d+0 0.00 !c(i), power of T 0.228092134d+0 1.00 0.352999168d-4 2.00 @TRN !transport model specification ECS Extended Corresponding States model for transport props (R134a ref. fluid). ?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). \ ?\ ?\Lennard-Jones parameters are estimated.\ ?\ !end of info section 179.52 !lower temperature limit [K] 500.0 !upper temperature limit [K] 60000.0 !upper pressure limit [kPa] 11.30 !maximum density [mol/L] 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 \ ?Schmidt, J.W., Carrillo-Nava, E. and Moldover, M.R. (1996). Partially ? halogenated hydrocarbons CHFCl-CF3, CF3-CH3, CF3-CHF-CHF2, CF3-CH2-CF3, ? CHF2-CF2-CH2F, CF3-CH2-CHF2, CF3-O-CHF2: Critical temperature, refractive ? indices, surface tension and estimates of liquid, vapor and critical densities. ? Fluid Phase Equilibria 122: 187-206. ?\ !end info 179.52 !lower temperature limit [K] 398.07 !upper temperature limit [K] 0.00 !(dummy) upper pressure limit 0.00 !(dummy) maximum density 3 !number of terms 398.07d0 !critical temperature used in correlation (dummy) 0.047444d0 1.26d0 !sigma0 and n 0.060396d0 1.76d0 != sigma0 * sigma1 -0.080655d0 2.26d0 != sigma0 * sigma2 @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890