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CoolProp/dev/fluids/D6.json
Ian Bell fc1484f828 Update critical splines 
Signed-off-by: Ian Bell <ian.h.bell@gmail.com>
2014-09-27 11:22:37 +02:00

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{
"ALIASES": [
"Dodecamethylcyclohexasiloxane",
"DODECAMETHYLCYCLOHEXASILOXANE"
],
"ANCILLARIES": {
"hL": {
"A": [
-601074.8800109674,
2046.6599419945899,
-4.165740998771456,
0.008957756862582307,
-1.0352433636488815e-05,
-5.046115306487336e-10,
1.0350015090503027e-11,
-6.1877598165575296e-15
],
"B": [
1,
-0.0015370582664079543
],
"_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
"max_abs_error": 939.5358796544024,
"max_abs_error_units": "J/mol",
"type": "rational_polynomial"
},
"hLV": {
"A": [
67745.42118773013,
684.354115217904,
-8.321191476273055,
0.037664745258571164,
-9.481410853944656e-05,
1.389634137959504e-07,
-1.1133505831822644e-10,
3.788598382684835e-14
],
"B": [
1,
-0.0015342997653616049
],
"_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
"max_abs_error": 2059.2700121466746,
"max_abs_error_units": "J/mol",
"type": "rational_polynomial"
},
"pL": {
"T_r": 645.78,
"Tmax": 645.7799999999984,
"Tmin": 270.2,
"description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 0.030659882111727654,
"n": [
0.0009840543696606977,
-41.57124463279652,
33.17839559625214,
-221.16595834771732,
368.2016194959781,
-159.62000149415917
],
"reducing_value": 961000.0,
"t": [
0.023,
1.048,
1.073,
4.527,
4.823,
5.211
],
"type": "pL",
"using_tau_r": true
},
"pV": {
"T_r": 645.78,
"Tmax": 645.7799999999984,
"Tmin": 270.2,
"description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 0.07602253271106196,
"n": [
34.45481648119546,
-38.67596233295787,
-4.227731274421991,
-10.622093383403744,
24.71517002775392,
-31.424451637388774
],
"reducing_value": 961000.0,
"t": [
0.775,
0.787,
1.042,
3.536,
8.175,
8.915
],
"type": "pV",
"using_tau_r": true
},
"rhoL": {
"T_r": 645.78,
"Tmax": 645.7799999999984,
"Tmin": 270.2,
"description": "rho' = rhoc*(1+sum(n_i*theta^t_i))",
"max_abserror_percentage": 2.211610708692202,
"n": [
41.50050216018366,
-198.81152403352948,
161.74986511225353,
-2.8794147964708507,
15327.689037983815,
-19023.670087608214
],
"reducing_value": 627.2885477999996,
"t": [
0.59,
0.719,
0.755,
3.132,
14.519,
14.971
],
"type": "rhoLnoexp",
"using_tau_r": false
},
"rhoV": {
"T_r": 645.78,
"Tmax": 645.7799999999984,
"Tmin": 270.2,
"description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 2.8375465327178273,
"n": [
-15.776270974992267,
13.699167960267655,
-7.138110844583917,
-2782.2625154428233,
5504.275783042545,
-5468.11384054501
],
"reducing_value": 627.2885477999996,
"t": [
0.522,
0.588,
1.175,
9.309,
10.264,
13.23
],
"type": "rhoV",
"using_tau_r": true
},
"sL": {
"A": [
-2322.8335364475397,
15.772549395160015,
-0.06445983433880714,
0.00018489426273185259,
-3.4348330563919904e-07,
3.875086899876942e-10,
-2.4225580889425577e-13,
6.426626266842433e-17
],
"B": [
1,
-0.001533941646115353
],
"_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
"max_abs_error": 1.6287465681779167,
"max_abs_error_units": "J/mol/K",
"type": "rational_polynomial"
},
"sLV": {
"A": [
2023.0614669605252,
-19.73859925656334,
0.09258273832454762,
-0.0002577609307219057,
4.4440617844189846e-07,
-4.64663337978529e-10,
2.685708124612252e-13,
-6.510992276927948e-17
],
"B": [
1,
-0.0015321471182629793
],
"_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
"max_abs_error": 3.406626738651515,
"max_abs_error_units": "J/mol/K",
"type": "rational_polynomial"
},
"surface_tension": {
"BibTeX": "Mulero-JPCRD-2014",
"Tc": 645.78,
"a": [
0.05105
],
"description": "sigma = sum(a_i*(1-T/Tc)^n_i)",
"n": [
1.594
]
}
},
"CAS": "540-97-6",
"ENVIRONMENTAL": {
"ASHRAE34": "UNKNOWN",
"FH": -1,
"GWP100": -1.0,
"GWP20": -1.0,
"GWP500": -1.0,
"HH": -1,
"Name": "D6",
"ODP": -1.0,
"PH": -1
},
"EOS": [
{
"BibTeX_CP0": "",
"BibTeX_EOS": "Colonna-FPE-2008",
"STATES": {
"hs_anchor": {
"T": 710.3580000000001,
"T_units": "K",
"hmolar": 194998.30924696967,
"hmolar_units": "J/mol",
"p": 1774539.402129444,
"p_units": "Pa",
"rhomolar": 564.5596930199997,
"rhomolar_units": "mol/m^3",
"smolar": 315.70047950847186,
"smolar_units": "J/mol/K"
},
"reducing": {
"T": 645.78,
"T_units": "K",
"p": 961000,
"p_units": "Pa",
"rhomolar": 627.2885477999996,
"rhomolar_units": "mol/m^3"
},
"sat_min_liquid": {
"T": 270.2,
"T_units": "K",
"p": 0.1597530240226687,
"p_units": "Pa",
"rhomolar": 2245.076289907644,
"rhomolar_units": "mol/m^3"
},
"sat_min_vapor": {
"T": 270.2,
"T_units": "K",
"p": 0.15975303819928524,
"p_units": "Pa",
"rhomolar": 7.110981970324319e-05,
"rhomolar_units": "mol/m^3"
}
},
"T_max": 673,
"T_max_units": "K",
"Ttriple": 270.2,
"Ttriple_units": "K",
"accentric": 0.736,
"accentric_units": "-",
"alpha0": [
{
"a1": -7.938561730464921,
"a2": 8.452340963237452,
"type": "IdealGasHelmholtzLead"
},
{
"a": -1,
"type": "IdealGasHelmholtzLogTau"
},
{
"T0": 518.109977174843,
"Tc": 645.78,
"c": [
56.37158920013201,
118.0111016069331,
1792.1,
82.5909330141469,
786.8
],
"type": "IdealGasHelmholtzCP0AlyLee"
},
{
"a1": 16.2776881308826,
"a2": -9.86112982952628,
"reference": "NBP",
"type": "IdealGasHelmholtzEnthalpyEntropyOffset"
}
],
"alphar": [
{
"d": [
1,
1,
1,
2,
3,
7,
2,
5,
1,
4,
3,
4
],
"l": [
0,
0,
0,
0,
0,
0,
1,
1,
2,
2,
3,
3
],
"n": [
1.69156186,
-3.37962568,
0.38609039,
0.064598995,
0.10589012,
4.5456825e-05,
0.74169279,
-0.088102648,
-0.17373336,
-0.10951368,
-0.062695695,
0.037459986
],
"t": [
0.25,
1.125,
1.5,
1.375,
0.25,
0.875,
0.625,
1.75,
3.625,
3.625,
14.5,
12
],
"type": "ResidualHelmholtzPower"
}
],
"critical_region_splines": {
"T_max": 645.78,
"T_min": 645.4997615767367,
"_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": [
-1.554702914197144e-07,
0.00027871311312902783,
-0.16613864293822964,
678.7008854032358
],
"cV": [
2.1732433324774884e-07,
-0.00042927603672073575,
0.28201442644063596,
584.1491278422845
],
"rhomolar_max": 725.3981107757561,
"rhomolar_min": 542.276230072255
},
"gas_constant": 8.314472,
"gas_constant_units": "J/mol/K",
"molar_mass": 0.444924,
"molar_mass_units": "kg/mol",
"p_max": 30000000,
"p_max_units": "Pa",
"pseudo_pure": false
}
],
"NAME": "D6",
"REFPROP_NAME": "D6",
"STATES": {
"critical": {
"T": 645.78,
"T_units": "K",
"p": 961000.0,
"p_units": "Pa",
"rhomolar": 627.2885477999996,
"rhomolar_units": "mol/m^3"
},
"triple_liquid": {
"T": 270.2,
"T_units": "K",
"p": 0.1597530240226687,
"p_units": "Pa",
"rhomolar": 2245.076289907644,
"rhomolar_units": "mol/m^3"
},
"triple_vapor": {
"T": 270.2,
"T_units": "K",
"p": 0.15975303819928524,
"p_units": "Pa",
"rhomolar": 7.110981970324319e-05,
"rhomolar_units": "mol/m^3"
}
}
}
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