{ "ALIASES": [ "R134A" ], "ANCILLARIES": { "pL": { "T_r": 374.21, "Tmax": 374.20999999999935, "Tmin": 169.85, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.017350580991559728, "n": [ -7.752261946226358, 1.1077288842347188, -3.6878039562081835, 11.428865438173393, 58.41970100091463, -7.937848917436551 ], "reducing_value": 4059280.0, "t": [ 0.994, 1.193, 3.431, 11.757, 16.373, 8.838 ], "type": "pL", "using_tau_r": true }, "pV": { "T_r": 374.21, "Tmax": 374.20999999999935, "Tmin": 169.85, "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.00920528154990663, "n": [ 0.4331478287291047, -9.090302559074352, 2.1476074125217703, -1.557687007603464, -3.5020328972698604, 14.958442337201044 ], "reducing_value": 4059280.0, "t": [ 0.845, 0.99, 1.14, 2.651, 4.507, 17.235 ], "type": "pV", "using_tau_r": true }, "rhoL": { "T_r": 374.21, "Tmax": 374.20999999999935, "Tmin": 169.85, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 4.694601438771184, "n": [ 18.772731940930015, -51.49939472178225, 40.793536440596085, -1481.6500471538966, 1600.534434298925, -67338.52423732559 ], "reducing_value": 5017.053, "t": [ 0.673, 0.994, 1.257, 5.783, 5.943, 19.94 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 374.21, "Tmax": 374.20999999999935, "Tmin": 169.85, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 2.5443795326392737, "n": [ -5.147386240766544, 5.34618043286371, -7.611015272838434, -28.85436432788653, -9.079306067130748, 64.0 ], "reducing_value": 5017.053, "t": [ 0.476, 0.966, 1.321, 8.491, 13.463, 13.463 ], "type": "rhoV", "using_tau_r": true }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2012", "Tc": 374.21, "a": [ 0.05801 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.241 ] } }, "CAS": "811-97-2", "ENVIRONMENTAL": { "ASHRAE34": "A1", "FH": 1, "GWP100": 1430.0, "GWP20": 3830.0, "GWP500": 435.0, "HH": 1, "Name": "R134a", "ODP": -1.0, "PH": 0 }, "EOS": [ { "BibTeX_CP0": "", "BibTeX_EOS": "TillnerRoth-JPCRD-1994", "T_max": 455, "T_max_units": "K", "Ttriple": 169.85, "Ttriple_units": "K", "accentric": 0.32684, "accentric_units": "-", "alpha0": [ { "a1": -1.019535, "a2": 9.047135, "type": "IdealGasHelmholtzLead" }, { "a": -1.629789, "type": "IdealGasHelmholtzLogTau" }, { "n": [ -9.723916, -3.92717 ], "t": [ -0.5, -0.75 ], "type": "IdealGasHelmholtzPower" } ], "alphar": [ { "d": [ 2, 1, 3, 6, 6, 1, 1, 2, 5, 2, 2, 4, 1, 4, 1, 2, 4, 1, 5, 3, 10 ], "l": [ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, 4 ], "n": [ 0.05586817, 0.498223, 0.02458698, 0.0008570145, 0.0004788584, -1.800808, 0.2671641, -0.04781652, 0.01423987, 0.3324062, -0.007485907, 0.0001017263, -0.5184567, -0.08692288, 0.2057144, -0.005000457, 0.0004603262, -0.003497836, 0.006995038, -0.01452184, -0.0001285458 ], "t": [ -0.5, 0, 0, 0, 1.5, 1.5, 2, 2, 1, 3, 5, 1, 5, 5, 6, 10, 10, 10, 18, 22, 50 ], "type": "ResidualHelmholtzPower" } ], "gas_constant": 8.314471, "gas_constant_units": "J/mol/K", "molar_mass": 0.102032, "molar_mass_units": "kg/mol", "p_max": 70000000, "p_max_units": "Pa", "pseudo_pure": false, "ptriple": 389.5637886, "ptriple_units": "Pa", "reducing_state": { "T": 374.18, "T_units": "K", "p": 4059280, "p_units": "Pa", "rhomolar": 4978.830171000001, "rhomolar_units": "mol/m^3" }, "rhoLtriple": 15594.17453546275, "rhoLtriple_units": "mol/m^3", "rhoVtriple": 0.2761416512149696, "rhoVtriple_units": "mol/m^3" } ], "NAME": "R134a" }