tilmedia 2026.1

Substance properties for incompressible liquids, ideal gases, real fluids and mixtures

TILMedia Suite provides methods of calculation, which express the thermophysical properties of incompressible liquids, ideal gases and real fluids containing a vapor liquid equilibrium (VLEFluid). Methods for calculating the properties of mixtures are also included. TILMedia provides a comprehensive range of different substances, including our own highly efficient and accurate real-time substance property implementations.

(https://www.tlk-thermo.com/en/software/tilmedia-suite)

Example for a gas:

>>> import tilmedia
>>> gas = tilmedia.Gas('VDI4670.DryAir')
>>> gas.set_pTxi(1e5, 300)
>>> print(round(float(gas.d), 6))
1.161034
>>> gas.set_Txi(300)
>>> print(round(float(gas.cp), 6))
1004.990552
>>> gas.set(p=1e5, T=300)
>>> print(round(float(gas.d), 6))
1.161034
>>> gas.set_Txi([300, 350, 400])
>>> print(gas.cp.round(6))
[1004.990552 1008.342171 1013.626381]

Example for a liquid:

>>> import tilmedia
>>> liquid = tilmedia.Liquid('TILMedia.Water')
>>> liquid.set_Txi(300)
>>> print(round(float(liquid.d), 6))
996.425346
>>> liquid.set_pTxi(1e5, 300)
>>> print(round(float(liquid.s), 6))
394.977757
>>> liquid.set(p=liquid.p, T=300)
>>> print(round(float(liquid.s), 6))
394.977757
>>> liquid.set_Txi([300, 310, 320])
>>> print(liquid.cp.round(6))
[4180.308149 4177.312533 4177.805418]

Example for a VLEFluid:

>>> import tilmedia
>>> vleFluid = tilmedia.VLEFluid('TILMedia.R134a')
>>> vleFluid.set_pTxi(1e5, 300)
>>> print(round(float(vleFluid.d), 6))
4.173095
>>> print(round(float(vleFluid.vle.T_l), 6))
246.788812
>>> vleFluid.set_pxi(2e5)
>>> print(round(float(vleFluid.vle.T_l), 6))
263.073728
>>> vleFluid.set(T=vleFluid.sat.T_dew)
>>> print(round(float(vleFluid.sat.p_dew), 1))
200000.0
>>> vleFluid.set_phxi(1e5, [350e3, 360e3, 370e3])
>>> print(vleFluid.d.round(6))
[6.106462 5.79392  5.511813]