R124 !short name (same as file name) 2837-89-0 !CAS number 1-chloro-1,2,2,2-tetrafluoroethane HCFC-124 !synonym1 R-124 !synonym2 136.4762 !molecular weight [g/mol] 74. !triple pt temperature [K] 261.187 !normal boiling pt [K] 395.425 !critical temperature [K] 3624.295 !critical pressure [kPa] 4.1033156 !critical density [mol/L] (= 560 kg/m^3) 0.28810 !acentric factor 1.469 !dipole moment [Debye]; Meyer & Morrison J Phys Chem 95:3860-3866 (1991) IIR !default reference state 6.001 !version number ! compiled by M. McLinden, NIST Physical and Chemical Properties Division, Boulder, Colorado ! 12-31-96 MM, original version ! 01-03-97 MM, add L-J parameters from Dowdell & Matthews ! 01-31-97 MM, change pointer for ECS reference viscosity from VS3 to VS1 ! modify ncoeff line for FEQ to accomodate critical region terms ! 02-20-97 MM, add default reference state ! 02-26-97 MM, add version number (future use) ! 03-11-97 MM, modify ECS-transport to new format ! 06-06-97 MM, set lower limit to 120 K as routines did not converge at 100 K ! 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 #EOS !equation of state specification FEQ fundamental (Helmholtz) equation of state; de Vries et al. (1995). ?LITERATURE REFERENCE \ ?de Vries, B., Tillner-Roth, R. and Baehr, H.D. (1995). Thermodynamic ? Properties of HCFC 124. 19th International Congress of Refrigeration, ? The Hague, The Netherlands, International Institute of Refrigeration, ? vol IVa: 582-589. \ ?\ !end info 120.00 !lower temperature limit [K] 470.00 !upper temperature limit [K] 40000.0 !upper pressure limit [kPa] 14.00 !maximum density [mol/L] CPP !pointer to Cp0 model 136.475 !molecular weight [g/mol] 74. !triple point temperature [K] 0.32d-09 !pressure at triple point [kPa] 13.5758d0 !density at tlow [mol/L] 261.187 !normal boiling point temp [K] 0.28810 !acentric factor 395.425d0 3624.295d0 4.1033156d0 !Tc [K], pc [kPa], rho [mol/L] 395.425d0 4.1033156d0 !reducing parameters [K, mol/L] 8.314471d0 !gas constant [J/mol-K] 20 4 0 0 0 0 !# terms, # coeff/term for: "normal" terms, critical, spare -0.1262962d-01 2.000 1.00 0 !a(i),t(i),d(i),l(i) 0.2168373d+01 0.500 1.00 0 -0.3330033d+01 1.000 1.00 0 0.1610361d+00 0.500 2.00 0 -0.9666145d-04 2.500 2.00 0 0.1191310d-01 -1.000 3.00 0 -0.2880217d-02 1.000 5.00 0 0.1681346d-02 0.000 6.00 0 0.1594968d-04 -0.500 8.00 0 0.1289674d+00 1.500 2.00 1 0.1182213d-04 1.000 12.00 1 -0.4713997d+00 2.500 1.00 2 -0.2412873d+00 -0.250 1.00 2 0.6868066d+00 1.000 1.00 2 -0.8621095d-01 5.000 1.00 2 0.4728645d-05 2.000 15.00 2 0.1487933d-01 15.000 3.00 3 -0.3001338d-01 20.000 3.00 3 0.1849606d-02 15.000 4.00 4 0.4126073d-03 45.000 9.00 4 #AUX !auxiliary model specification CPP ideal gas function of de Vries et al. (1995). ?LITERATURE REFERENCE \ ?de Vries, B., Tillner-Roth, R. and Baehr, H.D. (1995). Thermodynamic ? Properties of HCFC 124. 19th International Congress of Refrigeration, ? The Hague, The Netherlands, International Institute of Refrigeration, ? vol IVa: 582-589. \ ?\ ?Note: de Vries et al. give a Helmholtz form for the ideal gas term; it ? has been converted to a Cp0 form, by the transform:\ ?\ ? Cp0/R = (1 + a_3) - 2a_4*Tr - 6a_5*Tr^2 - 12a_6*Tr^3 \ ? where T_r = T/Tcrit, \ ? and the a_i are the original coefficients given by de Vries\ ? !end info 100.0 !lower temperature limit [K] 470.0 !upper temperature limit [K] 0.00 !upper pressure limit [kPa] 0.00 !maximum density [mol/L] 395.425d0 8.314471d0 !reducing parameters for T, Cp0 4 0 !Nterms: polynonial, exponential 3.1756380d0 0.00 != 1 + a_3 (the a_i are coeff of de Vries) 14.7794700d0 1.00 != -2a_4 -5.2420986d0 2.00 != -6a_5 1.3381596d0 3.00 != -12a_6 @EOS !equation of state specification BWR MBWR equation of state; Younglove & McLinden (1994). ?REFERENCE \ ?McLinden, M.O., Younglove, B.A. and Sandarusi, J. (1994). Measurement of the ? PVT properties and formulation of an equation of state for refrigerant 124 ? (1-chloro-1,2,2,2-tetrafluoroethane). (unpublished manuscript).\ ?\ !end of info section 120.00 !lower temperature limit [K] 475.00 !upper temperature limit [K] 36000.0 !upper pressure limit [kPa] 13.98 !maximum density [mol/L] CP1 !pointer to Cp0 model 136.4762d0 !molecular weight [g/mol] 74.d0 !triple point temperature [K] 0.32E-09 !pressure at triple point [kPa] 14.54d0 !density at triple point [mol/L] 261.212d0 !normal boiling point temp [K] 0.28783d0 !acentric factor 395.62d0 3637.d0 4.101527d0 !Tc [K], pc [kPa], rhoc [mol/L] 395.62d0 4.101527d0 !reducing parameters [K, mol/L] 4.101527d0 !gamma 0.08314471d0 !gas constant [L-bar/mol-K] 32 1 !Nterm, Ncoeff per term -0.195111839846d-01 0.299978502039d+01 -0.845849168162d+02, 0.146720754658d+05 -0.232549336572d+07 0.938866046628d-03, -0.425069993257d+01 0.304859131600d+04 0.221314829910d+07, -0.601971995213d-04 0.100335188373d+01 -0.468461812962d+03, -0.927654315163d-02 -0.125426962519d+02 -0.228534445089d+04, 0.168197835599d+01 -0.537322295315d-01 0.157915168095d+02, -0.550297175283d+00 -0.244349954189d+07 -0.625153016263d+08, -0.156149231820d+06 0.344268154495d+10 -0.289212955106d+04, 0.108351996828d+06 -0.404809912845d+02 -0.220587292481d+07, -0.564677367857d+00 0.175581172016d+03 -0.762146322899d-03, -0.210617958917d+01 0.319236066221d+02 #AUX !auxiliary model specification CP1 polynomial fit for ideal gas heat capacity. ?REFERENCE \ ?McLinden, M.O., Younglove, B.A. and Sandarusi, J. (1994). Measurement of the ? PVT properties and formulation of an equation of state for refrigerant 124 ? (1-chloro-1,2,2,2-tetrafluoroethane). (unpublished manuscript).\ ?\ !end info 100.00 !lower temperature limit [K] 475.00 !upper temperature limit [K] 0.00 !upper pressure limit [kPa] 0.00 !maximum density [mol/L] 395.62d0 8.314471d0 !reducing parameters for T, Cp0 4 0 !Nterms: polynonial, exponential 3.20532538d+0 0.00 !c(i), power of T 1.34403357d+1 1.00 -2.32192933d+0 2.00 -4.22826803d-1 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). \ ?\ ?Lennard-Jones parameters are from:\ ?Dowdell, D.C. and Matthews, G.P. (1993). Gas viscosities and intermolecular ? interactions of replacement refrigerants HCFC 123 (2,2-dichloro- ? 1,1,1-trifluoroethane), HCFC 124 (2-chloro-1,1,1,2-tetrafluoroethane), and ? HFC 134a (1,1,1,2-tetrafluuoroethane). J. Chem. Soc. Faraday Trans. ? 89: 3545-3552.\ ?\ !end of info section 180.00 !lower temperature limit [K] (based on Ttp/Tc of ref fluid) 470.00 !upper temperature limit [K] 40000.0 !upper pressure limit [kPa] 12.50 !maximum density [mol/L] (rho for sat liq at T = 180 K) FEQ R134a.fld VS1 !model for reference fluid viscosity TC1 !model for reference fluid thermal conductivity 1 !Lennard-Jones flag (0 or 1) (0 => use estimates) 0.5501 !Lennard-Jones coefficient Sigma [nm] 275.8 !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 \ ?Okada, M. and Higashi, Y. (1995). Experimental surface tensions for ? HFC-32, HCFC-124, HFC-125, HCFC-141b, HCFC-142b, and HFC-152a. Int. J. ? Thermophysics 16(3): 791-800. \ ?\ !end info 100. !lower temperature limit [K] 395.425 !upper temperature limit [K] 0.00 !(dummy) upper pressure limit 0.00 !(dummy) maximum density 1 !number of terms 395.35d0 !critical temperature used by Okada & Higashi (dummy) 0.05219d0 1.203d0 !sigma0 and n @END c 1 2 3 4 5 6 7 8 c2345678901234567890123456789012345678901234567890123456789012345678901234567890