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CoolProp/dev/fluids/D4.json

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{
"ALIASES": [
"Octamethylcyclotetrasiloxane",
"OCTAMETHYLCYCLOTETRASILOXANE"
],
"ANCILLARIES": {
"hL": {
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-259.5824525367737,
7.7466602220457625,
-0.03374381260781217,
8.34837843851262e-05,
-1.2471898607314322e-07,
1.0254734748781992e-10,
-3.584750583698682e-14
],
"B": [
1,
-0.0016948381444915777
],
"Tmax": 586.4,
"Tmin": 290.25,
"_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
"max_abs_error": 859.2049677024115,
"max_abs_error_units": "J/mol",
"type": "rational_polynomial"
},
"hLV": {
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-123675.20507706807,
3672.274774264113,
-30.224744777396552,
0.12774387302911544,
-0.0003160808006608067,
4.6266251762349287e-07,
-3.724733161434862e-10,
1.2766815097982976e-13
],
"B": [
1,
-0.0016900983284927514
],
"Tmax": 586.4,
"Tmin": 290.25,
"_note": "coefficients are in increasing order; input in K, output in J/mol; value is enthalpy minus hs_anchor enthalpy",
"max_abs_error": 1564.3618616496883,
"max_abs_error_units": "J/mol",
"type": "rational_polynomial"
},
"pL": {
"T_r": 586.5,
"Tmax": 586.4999999999989,
"Tmin": 290.25,
"description": "p' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 0.028925946608671094,
"n": [
0.39146787698576685,
-22.07223693358694,
15.421699054361437,
-4.2709891047524335,
-7.542128557150028,
140.7032008919629
],
"reducing_value": 1332000.0,
"t": [
0.893,
1.059,
1.151,
2.074,
4.392,
16.257
],
"type": "pL",
"using_tau_r": true
},
"pV": {
"T_r": 586.5,
"Tmax": 586.4999999999989,
"Tmin": 290.25,
"description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 0.028925946446056727,
"n": [
90.36983662049464,
-97.70779785443601,
-3.62818153879477,
-6.09127598868665,
-26.32182480105557,
153.97714284240485
],
"reducing_value": 1332000.0,
"t": [
0.87,
0.876,
2.397,
4.259,
10.207,
13.645
],
"type": "pV",
"using_tau_r": true
},
"rhoL": {
"T_r": 586.5,
"Tmax": 586.4999999999989,
"Tmin": 290.25,
"description": "rho' = rhoc*(1+sum(n_i*theta^t_i))",
"max_abserror_percentage": 13.286210237431817,
"n": [
1.1098694118456651,
3.8256536703025574,
-7151.436323591654,
41771953.36308636,
-74286753.6277466,
67304077.15677227
],
"reducing_value": 1030.928,
"t": [
0.156,
1.24,
9.435,
16.41,
17.017,
19.509
],
"type": "rhoLnoexp",
"using_tau_r": false
},
"rhoV": {
"T_r": 586.5,
"Tmax": 586.4999999999989,
"Tmin": 290.25,
"description": "rho'' = rhoc*exp(Tc/T*sum(n_i*theta^t_i))",
"max_abserror_percentage": 9.473643686906497,
"n": [
1.4882997310050823,
-4.34717643630862,
-14.118092236565857,
25.086940017821192,
-5022.733213778868,
93552.36171295607
],
"reducing_value": 1030.928,
"t": [
0.114,
0.23,
1.834,
3.647,
11.227,
16.17
],
"type": "rhoV",
"using_tau_r": true
},
"sL": {
"A": [
-1101.3580280874742,
5.2701691381899,
-0.01034409006682623,
6.508498985079078e-06,
2.3338668092890836e-08,
-7.099174606219544e-11,
7.85860536033957e-14,
-3.2603869504603975e-17
],
"B": [
1,
-0.0016949427570215022
],
"Tmax": 586.4,
"Tmin": 290.25,
"_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
"max_abs_error": 1.460481733840588,
"max_abs_error_units": "J/mol/K",
"type": "rational_polynomial"
},
"sLV": {
"A": [
1324.7254739088855,
-10.899430420888171,
0.0376176101465594,
-5.5603735452184006e-05,
-1.5149150452865418e-08,
1.7090250295500776e-10,
-2.2266260282317656e-13,
9.806408211682e-17
],
"B": [
1,
-0.0016901403551378739
],
"Tmax": 586.4,
"Tmin": 290.25,
"_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy",
"max_abs_error": 2.6678225424245605,
"max_abs_error_units": "J/mol/K",
"type": "rational_polynomial"
},
"surface_tension": {
"BibTeX": "Mulero-JPCRD-2014",
"Tc": 586.5,
"a": [
0.04246
],
"description": "sigma = sum(a_i*(1-T/Tc)^n_i)",
"n": [
1.207
]
}
},
"CAS": "556-67-2",
"ENVIRONMENTAL": {
"ASHRAE34": "UNKNOWN",
"FH": -1,
"GWP100": -1.0,
"GWP20": -1.0,
"GWP500": -1.0,
"HH": -1,
"Name": "D4",
"ODP": -1.0,
"PH": -1
},
"EOS": [
{
"BibTeX_CP0": "",
"BibTeX_EOS": "Colonna-FPE-2006",
"STATES": {
"hs_anchor": {
"T": 645.1403990570001,
"T_units": "K",
"hmolar": 125575.49724587749,
"hmolar_units": "J/mol",
"p": 2353169.494223387,
"p_units": "Pa",
"rhomolar": 931.6100790000011,
"rhomolar_units": "mol/m^3",
"smolar": 227.67734367915278,
"smolar_units": "J/mol/K"
},
"reducing": {
"T": 586.49127187,
"T_units": "K",
"hmolar": 89345.78916363802,
"hmolar_units": "J/mol",
"p": 1332000,
"p_units": "Pa",
"rhomolar": 1035.122310000001,
"rhomolar_units": "mol/m^3",
"smolar": 170.5022172629333,
"smolar_units": "J/mol/K"
},
"sat_min_liquid": {
"T": 290.25,
"T_units": "K",
"hmolar": -77643.64716249761,
"hmolar_units": "J/mol",
"p": 69.6092376840441,
"p_units": "Pa",
"rhomolar": 3200.4450981169975,
"rhomolar_units": "mol/m^3",
"smolar": -211.68352057551905,
"smolar_units": "J/mol/K"
},
"sat_min_vapor": {
"T": 290.25,
"T_units": "K",
"hmolar": -21203.046891187223,
"hmolar_units": "J/mol",
"p": 69.60923766759312,
"p_units": "Pa",
"rhomolar": 0.028853717844190628,
"rhomolar_units": "mol/m^3",
"smolar": -17.2283947482962,
"smolar_units": "J/mol/K"
}
},
"T_max": 673,
"T_max_units": "K",
"Ttriple": 290.25,
"Ttriple_units": "K",
"accentric": 0.592,
"accentric_units": "-",
"alpha0": [
{
"a1": 29.18574340067077,
"a2": -14.02099419676275,
"type": "IdealGasHelmholtzLead"
},
{
"a": -1,
"type": "IdealGasHelmholtzLogTau"
},
{
"T0": 448.503917912145,
"Tc": 586.49127187,
"cp_over_R": -2.19568963609475,
"type": "IdealGasHelmholtzCP0Constant"
},
{
"T0": 448.503917912145,
"Tc": 586.49127187,
"c": [
0.171652511428266,
-0.000119093551580906,
3.60816657991031e-08
],
"t": [
1,
2,
3
],
"type": "IdealGasHelmholtzCP0PolyT"
},
{
"a1": -36.9617168387456,
"a2": 22.2512527290327,
"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": [
1.05392408,
-2.22981918,
0.77573923,
-0.6937405,
0.18721557,
0.0004219333,
0.70301835,
0.047851888,
-0.8025348,
-0.18968872,
-0.022211781,
0.0060103354
],
"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": 586.5,
"T_min": 585.8223731516954,
"_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": [
0.0,
-7.862666279638519e-06,
0.016211685644670307,
578.1434596708557
],
"cV": [
6.746394257626074e-08,
-0.00021062780266197875,
0.2191796259421155,
510.4803477882244
],
"rhomolar_max": 1324.4971267138706,
"rhomolar_min": 824.503552249034
},
"gas_constant": 8.314472,
"gas_constant_units": "J/mol/K",
"molar_mass": 0.29661576,
"molar_mass_units": "kg/mol",
"p_max": 30000000,
"p_max_units": "Pa",
"pseudo_pure": false
}
],
"NAME": "D4",
"REFPROP_NAME": "D4",
"STATES": {
"critical": {
"T": 586.5,
"T_units": "K",
"p": 1332000.0,
"p_units": "Pa",
"rhomolar": 1030.928,
"rhomolar_units": "mol/m^3"
},
"triple_liquid": {
"T": 290.25,
"T_units": "K",
"hmolar": -77643.64716249761,
"hmolar_units": "J/mol",
"p": 69.6092376840441,
"p_units": "Pa",
"rhomolar": 3200.4450981169975,
"rhomolar_units": "mol/m^3",
"smolar": -211.68352057551905,
"smolar_units": "J/mol/K"
},
"triple_vapor": {
"T": 290.25,
"T_units": "K",
"hmolar": -21203.046891187223,
"hmolar_units": "J/mol",
"p": 69.60923766759312,
"p_units": "Pa",
"rhomolar": 0.028853717844190628,
"rhomolar_units": "mol/m^3",
"smolar": -17.2283947482962,
"smolar_units": "J/mol/K"
}
}
}
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