Air.json

{
  "ALIASES": [
    "air", 
    "AIR", 
    "R729"
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      "description": "p'' = pc*exp(Tc/T*sum(n_i*theta^t_i))", 
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      "description": "rho'' = rhoj*exp(sum(n_i*theta^t_i))", 
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      "_note": "coefficients are in increasing order; input in K, output in J/mol/K; value is entropy minus hs_anchor entropy", 
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      "max_abs_error_units": "J/mol/K", 
      "type": "rational_polynomial"
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      "max_abs_error": 4.036921827207072, 
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      "type": "rational_polynomial"
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  }, 
  "CAS": "AIR.PPF", 
  "ENVIRONMENTAL": {
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    "FH": 0, 
    "GWP100": -1.0, 
    "GWP20": -1.0, 
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    "Name": "Air", 
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        "temperature_max_sat": {
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      "Ttriple_units": "K", 
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      "acentric_units": "-", 
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        {
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          "type": "IdealGasHelmholtzPlanckEinstein"
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          "type": "ResidualHelmholtzPower"
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      "gas_constant": 8.31451, 
      "gas_constant_units": "J/mol/K", 
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      "molar_mass_units": "kg/mol", 
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      "p_max_units": "Pa", 
      "pseudo_pure": true
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  ], 
  "NAME": "Air", 
  "REFPROP_NAME": "AIR", 
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      "smolar": 39.75090162485092, 
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    "triple_liquid": {
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    "triple_vapor": {
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  }, 
  "TRANSPORT": {
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      "BibTeX": "Lemmon-IJT-2004", 
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        "type": "simplified_Olchowy_Sengers", 
        "zeta0": 1.1e-10
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      "dilute": {
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        "t": [
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        "type": "eta0_and_poly"
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      "residual": {
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        "d": [
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        "gamma": [
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        "l": [
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        "t": [
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        "type": "polynomial_and_exponential"
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    "viscosity": {
      "BibTeX": "Lemmon-IJT-2004", 
      "dilute": {
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        "a": [
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        "molar_mass": 0.0289586, 
        "molar_mass_units": "kg/mol", 
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        "type": "collision_integral"
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      "epsilon_over_k": 103.3, 
      "epsilon_over_k_units": "K", 
      "higher_order": {
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        "T_reduce_units": "K", 
        "a": [
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        "d1": [
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        "d2": [
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        "f": [
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        "g": [
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        "gamma": [
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        "h": [
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        "l": [
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        "p": [
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        "q": [
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        "rhomolar_reduce": 10447.7, 
        "rhomolar_reduce_units": "mol/m^3", 
        "t1": [
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        "t2": [
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        "type": "modified_Batschinski_Hildebrand"
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      "sigma_eta": 3.6e-10, 
      "sigma_eta_units": "m"
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  }
}