{ "ALIASES": [ "DIMETHYLETHER" ], "ANCILLARIES": { "hL": { "A": [ -48782.983571853016, 126.26015264595483, 1.1938460513288185, -0.010909372895171144, 4.723441563424785e-05, -1.1751627736283273e-07, 1.5766634635807466e-10, -8.926122427991584e-14 ], "B": [ 1, -0.00246905770825943 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 248.8985884375088, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "hLV": { "A": [ 27251.009403864333, 116.50695953871534, -3.6495448638147345, 0.02941090704297435, -0.0001294803938957372, 3.2667193187602425e-07, -4.437214988328288e-10, 2.532103031117021e-13 ], "B": [ 1, -0.002466259759972339 ], "_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy", "max_abs_error": 533.0986883790848, "max_abs_error_units": "J/mol", "type": "rational_polynomial" }, "pL": { "T_r": 400.378, "Tmax": 400.3779999999991, "Tmin": 131.66, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.037699905539889667, "n": [ 0.10722026973281615, -6.488862377381296, 0.623344116146438, -0.4117944469977067, -3.0220497491383966, -0.9034795581048802 ], "reducing_value": 5336800.0, "t": [ 0.636, 0.966, 1.377, 1.958, 3.842, 9.564 ], "type": "pL", "using_tau_r": true }, "pV": { "T_r": 400.378, "Tmax": 400.3779999999991, "Tmin": 131.66, "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.009235289644016209, "n": [ -9.576458382440794, 3.8237850260211683, 2.3534240536183586, -2.349392868307698, -3.348742284357154, -1.2387250144815742 ], "reducing_value": 5336800.0, "t": [ 1.026, 1.188, 7.78, 3.09, 6.356, 12.704 ], "type": "pV", "using_tau_r": true }, "rhoL": { "T_r": 400.378, "Tmax": 400.3779999999991, "Tmin": 131.66, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 0.048778965755591486, "n": [ 16.059795192018523, -14.738564267851407, -3.731150693384918, 5.144676895857624, 0.03490664751265221, 8.503244669132489 ], "reducing_value": 5940.000000000001, "t": [ 0.572, 0.658, 0.713, 0.916, 2.977, 19.393 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 400.378, "Tmax": 400.3779999999991, "Tmin": 131.66, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.3099722664643645, "n": [ -4.396808750959381, 0.11053731401780381, -2.8034901380765476, -577.5554786721015, 2817.238575530162, -2327.667386669654 ], "reducing_value": 5940.000000000001, "t": [ 0.499, 0.75, 2.338, 11.224, 12.48, 12.984 ], "type": "rhoV", "using_tau_r": true }, "sL": { "A": [ -330.7982340622611, 3.436583659472963, -0.019735823958134734, 7.587857248318918e-05, -1.8489616823755713e-07, 2.6202140148185356e-10, -1.8461044910671985e-13, 3.9010068543461884e-17 ], "B": [ 1, -0.002468511240179597 ], "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 0.630709864675989, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "sLV": { "A": [ 1074.931007000767, -18.082054412687537, 0.15113928226202544, -0.0007585146007500067, 2.3671785379746507e-06, -4.504466026910301e-09, 4.789712453765756e-12, -2.1802207559534126e-15 ], "B": [ 1, -0.0024525446015655084 ], "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", "max_abs_error": 1.6502623893501518, "max_abs_error_units": "J/mol/K", "type": "rational_polynomial" }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2012", "Tc": 400.378, "a": [ 0.063157 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.2595 ] } }, "CAS": "115-10-6", "ENVIRONMENTAL": { "ASHRAE34": "A3", "FH": 4, "GWP100": 1.0, "GWP20": 1.0, "GWP500": -1.0, "HH": 1, "Name": "DimethylEther", "ODP": -1.0, "PH": 2 }, "EOS": [ { "BibTeX_CP0": "", "BibTeX_EOS": "Wu-JPCRD-2011", "STATES": { "hs_anchor": { "T": 440.41580000000005, "T_units": "K", "hmolar": 27000.1090202929, "hmolar_units": "J/mol", "p": 8685250.287380269, "p_units": "Pa", "rhomolar": 5346.000000000001, "rhomolar_units": "mol/m^3", "smolar": 75.37063730362603, "smolar_units": "J/mol/K" }, "reducing": { "T": 400.378, "T_units": "K", "p": 5336800, "p_units": "Pa", "rhomolar": 5940.000000000001, "rhomolar_units": "mol/m^3" }, "sat_min_liquid": { "T": 131.66, "T_units": "K", "p": 2.2107301544161135, "p_units": "Pa", "rhomolar": 19149.52346867671, "rhomolar_units": "mol/m^3" }, "sat_min_vapor": { "T": 131.66, "T_units": "K", "p": 2.21072831726572, "p_units": "Pa", "rhomolar": 0.0020195317198106926, "rhomolar_units": "mol/m^3" } }, "T_max": 550, "T_max_units": "K", "Ttriple": 131.66, "Ttriple_units": "K", "accentric": 0.196, "accentric_units": "-", "alpha0": [ { "a1": -1.980976, "a2": 3.171218, "type": "IdealGasHelmholtzLead" }, { "a": 3.039, "type": "IdealGasHelmholtzLogTau" }, { "n": [ 2.641, 2.123, 8.992, 6.191 ], "t": [ 0.901647942694154, 2.432701097462898, 4.785477723551244, 10.36520488138709 ], "type": "IdealGasHelmholtzPlanckEinstein" } ], "alphar": [ { "d": [ 4, 1, 1, 2, 3, 1, 3, 2, 2, 7, 1 ], "l": [ 0, 0, 0, 0, 0, 2, 2, 1, 2, 1, 1 ], "n": [ 0.029814139, 1.43517, -2.64964, -0.29515532, 0.17035607, -0.94642918, -0.099250514, 1.1264071, -0.76936548, -0.020717696, 0.24527037 ], "t": [ 1, 0.4366, 1.011, 1.137, 0.45, 2.83, 1.5, 1.235, 2.675, 0.7272, 1.816 ], "type": "ResidualHelmholtzPower" }, { "beta": [ 1.28719, 0.806235, 0.777942, 197.681 ], "d": [ 1, 1, 3, 3 ], "epsilon": [ 0.672698, 0.924246, 0.750815, 0.800022 ], "eta": [ 0.965336, 1.50858, 0.963855, 9.72643 ], "gamma": [ 1.27772, 0.43075, 0.429607, 1.13849 ], "n": [ 1.1863438, -0.49398368, -0.16388716, -0.027583584 ], "t": [ 1.783, 3.779, 3.282, 1.059 ], "type": "ResidualHelmholtzGaussian" } ], "critical_region_splines": { "T_max": 400.378, "T_min": 400.37110506132734, "_note": "Coefficients for the critical cubic spline. T = c[0]*rho^3 + c[1]*rho^2 + c[2]*rho + c[3] with rho in mol/m^3 and T in K", "cL": [ -1.2340856080204133e-11, -3.6668010216655235e-07, 0.005662449102513134, 382.2672995716492 ], "cV": [ 3.2678596450956466e-11, -1.1690463919857066e-06, 0.010429215559579295, 372.82769480948826 ], "rhomolar_max": 6048.293446297928, "rhomolar_min": 5831.9191440537215 }, "gas_constant": 8.314472, "gas_constant_units": "J/mol/K", "molar_mass": 0.04606844, "molar_mass_units": "kg/mol", "p_max": 50000000, "p_max_units": "Pa", "pseudo_pure": false } ], "NAME": "DimethylEther", "REFPROP_NAME": "DME", "STATES": { "critical": { "T": 400.378, "T_units": "K", "p": 5336800.0, "p_units": "Pa", "rhomolar": 5940.000000000001, "rhomolar_units": "mol/m^3" }, "triple_liquid": { "T": 131.66, "T_units": "K", "p": 2.2107301544161135, "p_units": "Pa", "rhomolar": 19149.52346867671, "rhomolar_units": "mol/m^3" }, "triple_vapor": { "T": 131.66, "T_units": "K", "p": 2.21072831726572, "p_units": "Pa", "rhomolar": 0.0020195317198106926, "rhomolar_units": "mol/m^3" } }, "TRANSPORT": { "viscosity": { "BibTeX": "Meng-JCED-2012", "dilute": { "C": 2.1357e-08, "a": [ 0.294261, -0.377826, -0.491673 ], "molar_mass": 0.04606844, "molar_mass_units": "kg/mol", "t": [ 0, 1, 2 ], "type": "collision_integral" }, "epsilon_over_k": 317.937, "epsilon_over_k_units": "K", "higher_order": { "T_reduce": 400.378, "T_reduce_units": "K", "a": [ -2.70002e-06, 4.44583e-06, 2.1302e-07, 6.50681e-06, -0.000104998, 7.827474e-05, 4.13751e-05, -0.000175055, 6.281975e-05, 0.0001123219 ], "d1": [ 3, 3, 5, 1, 3, 4, 5, 2, 2, 2 ], "d2": [ 1 ], "f": [ 0 ], "g": [ 1 ], "gamma": [ 0, 0, 0, 0, -1, -1, -1, -1, -1, -1 ], "h": [ 0 ], "l": [ 0, 0, 0, 0, 1, 1, 2, 1, 1, 2 ], "p": [ 1 ], "q": [ 0 ], "rhomolar_reduce": 5940, "rhomolar_reduce_units": "mol/m^3", "t1": [ 5.92, 4.36, 5.87, 0.45, 2.93, 1.64, 7.86, 4.25, 4.79, 3.11 ], "t2": [ 0 ], "type": "modified_Batschinski_Hildebrand" }, "sigma_eta": 4.46704e-10, "sigma_eta_units": "m" } } }