lib.mEoS.R134a
==============

Fluid info
----------

* CAS Number: 811-97-2
* Formula: CF3CH2F
* Synonym: R134a
* Molecular weigth: 102.032 g/mol
* Tc:  374.2100 K
* Pc:  4.0593 MPa
* ρc:  511.9000 kg/m³
* Tt:  169.8500 K
* Tb:  247.0760 K
* Acentric factor: 0.32684
* Dipole moment:  2.0580 Debye

Equation of state
-----------------

* Tillner-Roth, R., Baehr, H.D.; An International Standard Formulation for the Thermodynamic Properties of 1,1,1,2-Tetrafluoroethane (HFC-134a) for Temperatures from 170 K to 455 K at Pressures up to 70 MPa. J. Phys. Chem. Ref. Data 23(5) (1994) 657-729, http://dx.doi.org/10.1063/1.555958
* Huber, M.L., McLinden, M.O.; Thermodynamic Properties of R134a (1,1,1,2-tetrafluoroethane). International Refrigeration and Air Condictioning Conference, Paper 184, pag. 453-462, 1992.
* Span, R., Wagner, W.; Equations of State for Technical Applications. III. Results for Polar Fluids. Int. J. Thermophys., 24(1) (2003) 111-162, http://dx.doi.org/10.1023/A:1022362231796
* Astina, I.M., Sato, H.; A Fundamental Equation of State for 1,1,1,2-tetrafluoroethane with an Intermolecular Potential Energy Background and Relialbe Ideal-Gas Properties. Fluid Phase Equilib., 221 (2004) 103-111, http://dx.doi.org/10.1016/j.fluid.2004.03.004
* Sun, L., Ely, J.F.; Universal equation of state for engineering application: Algorithm and  application to non-polar and polar fluids. Fluid Phase Equilib., 222-223 (2004) 107-118, http://dx.doi.org/10.1016/j.fluid.2004.06.028
* Huber, M.L., Ely, J.F.; An Equation of State Formulation of the Thermodynamic Properties of R134a (1,1,1,2-Tetrafluoroethane). Int. J. Refrig. 15(6) (1992) 393-400, http://dx.doi.org/10.1016/0140-7007(92)90024-o


Viscosity
---------

* Huber, M.L., Laesecke, A., Perkins, R.A.; Model for the Viscosity and Thermal Conductivity of Refrigerants, Including a New Correlation for the Viscosity of R134a. Ind. Eng. Chem. Res., 42(13) (2003) 3163-3178, http://dx.doi.org/10.1021/ie0300880

* Quiñones-Cisneros, S.E., Deiters, U.K.; Generalization of the Friction Theory for Viscosity Modeling. J. Phys. Chem. B, 110(25) (2006) 12820-12834, http://dx.doi.org/10.1021/jp0618577

Thermal Conductivity
--------------------

* Perkins, R.A., Laesecke, A., Howley, J., Ramires, M.L.V., Gurova, A.N., Cusco, L.; Experimental Thermal conductivity Values for the IUPAC Round-Robin Sample of 1,1,1,2-tetrafluoroethane (R134a). NIST Interagency/Internal Report (NISTIR) - 6605


Calculation example
-------------------

Using the first option for equation of state, we can get this diagram plots with the liquid-gas saturation region:

.. image:: images/R134a.png

The diagram is generated with :download:`this module <../.script/plotMEoS.py>` running with the compound name as parameter or edited in file

.. code-block:: bash

    python3 plotMEoS.py R134a