{ "ALIASES": [ "R152a" ], "ANCILLARIES": { "pL": { "T_r": 386.411, "Tmax": 386.4109999999993, "Tmin": 154.56, "description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.12140204459119008, "n": [ -0.002091012267118934, -6.995494450649338, 0.9348417755500018, -3.706406451221934, -66.08072669965013, 122.73360925177805 ], "reducing_value": 4520000.0, "t": [ 0.049, 0.993, 1.692, 3.445, 15.803, 17.838 ], "type": "pL", "using_tau_r": true }, "pV": { "T_r": 386.411, "Tmax": 386.4109999999993, "Tmin": 154.56, "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 0.16059785174262764, "n": [ -8.058110929331818e-05, -5.144477525553562, -1.521963154763345, -6.312478722604828, 5.544700008436013, -111.12850271670084 ], "reducing_value": 4520000.0, "t": [ 0.085, 0.94, 1.166, 4.638, 6.935, 17.582 ], "type": "pV", "using_tau_r": true }, "rhoL": { "T_r": 386.411, "Tmax": 386.4109999999993, "Tmin": 154.56, "description": "rho' = rhoc*(1+sum(n_i*theta^t_i))", "max_abserror_percentage": 2.482115019286124, "n": [ 0.27636163699950356, 2.512764633534828, 162.80865128111427, 345.16760517849104, -475.5953680253087, -1773.7454734026196 ], "reducing_value": 5571.452362568319, "t": [ 0.091, 0.499, 16.122, 16.122, 19.05, 19.528 ], "type": "rhoLnoexp", "using_tau_r": false }, "rhoV": { "T_r": 386.411, "Tmax": 386.4109999999993, "Tmin": 154.56, "description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))", "max_abserror_percentage": 1.6145478143872904, "n": [ -24.05629942535681, 24.599913141549887, -10.746520376686876, 5.86362610412505, -3.7063275045589696, -4.904962359487088 ], "reducing_value": 5571.452362568319, "t": [ 0.162, 0.168, 0.621, 0.787, 2.442, 7.345 ], "type": "rhoV", "using_tau_r": true }, "surface_tension": { "BibTeX": "Mulero-JPCRD-2012", "Tc": 386.411, "a": [ 0.05808 ], "description": "sigma = sum(a_i*(1-T/Tc)^n_i)", "n": [ 1.2115 ] } }, "CAS": "75-37-6", "ENVIRONMENTAL": { "ASHRAE34": "A2", "FH": 4, "GWP100": 124.0, "GWP20": 437.0, "GWP500": 38.0, "HH": 1, "Name": "R152A", "ODP": -1.0, "PH": 1 }, "EOS": [ { "BibTeX_CP0": "TillnerRoth-IJT-1995", "BibTeX_EOS": "Span-IJT-2003C", "T_max": 471, "T_max_units": "K", "Ttriple": 154.56, "Ttriple_units": "K", "accentric": 0.275217114532099, "accentric_units": "-", "alpha0": [ { "a1": 10.87227, "a2": 6.839515, "type": "IdealGasHelmholtzLead" }, { "a": -1, "type": "IdealGasHelmholtzLogTau" }, { "n": [ -20.78887, -0.6539092, 0.03342831 ], "t": [ -0.25, -2, -4 ], "type": "IdealGasHelmholtzPower" } ], "alphar": [ { "d": [ 1, 1, 1, 3, 7, 1, 2, 5, 1, 1, 4, 2 ], "l": [ 0, 0, 0, 0, 0, 1, 1, 1, 2, 2, 2, 3 ], "n": [ 0.95702326, -2.3707196, 0.18748463, 0.063800843, 0.00016625977, 0.082208165, 0.57243518, 0.0039476701, -0.23848654, -0.080711618, -0.073103558, -0.015538724 ], "t": [ 0.25, 1.25, 1.5, 0.25, 0.875, 2.375, 2, 2.125, 3.5, 6.5, 4.75, 12.5 ], "type": "ResidualHelmholtzPower" } ], "gas_constant": 8.31451, "gas_constant_units": "J/mol/K", "molar_mass": 0.066051, "molar_mass_units": "kg/mol", "p_max": 58000000, "p_max_units": "Pa", "pseudo_pure": false, "ptriple": 64.08986801, "ptriple_units": "Pa", "reducing_state": { "T": 386.411, "T_units": "K", "p": 4520000, "p_units": "Pa", "rhomolar": 5571.452362568319, "rhomolar_units": "mol/m^3" }, "rhoLtriple": 18031.06754931742, "rhoLtriple_units": "mol/m^3", "rhoVtriple": 0.04989696663288685, "rhoVtriple_units": "mol/m^3" } ], "NAME": "R152A" }