Functions
Temperature (T)
Pressure (p)
Enthalpy (h)
Specific Volume (v)
Density (rho)
Specific entropy (s)
Specific internal energy (u)
Specific isobaric heat capacity (Cp)
Specific isochoric heat capacity (Cv)
Speed of sound
Viscosity
Prandtl
Kappa
Surface tension
Thermal conductivity
Vapour fraction
Vapour Volume Fraction
Temperature (T) (Top)
| Function | Parameters | Return | Description |
| Tsat_p | p | T | Saturation temperature |
| Tsat_s | s | T | Saturation temperature |
| T_ph | p, h | T | Temperture as a function of pressure and enthalpy |
| T_ps | p, s | T | Temperture as a function of pressure and entropy |
| T_hs | h, s | T | Temperture as a function of enthalpy and entropy |
Pressure (p) (Top)
| Function | Parameters | Return | Description |
| psat_T | T | p | Saturation pressure |
| psat_s | s | p | Saturation pressure |
| p_hs | h, s | p | Pressure as a function of h and s |
| p_hrho | h, rho | p | Pressure as a function of h and rho (density). Very unaccurate for solid water region since it's almost incompressible! |
Enthalpy (h) (Top)
| Function | Parameters | Return | Description |
| hV_p | p | h | Saturated vapour enthalpy |
| hL_p | p | h | Saturated liquid enthalpy |
| hV_T | T | h | Saturated vapour enthalpy |
| hL_T | T | h | Saturated liquid enthalpy |
| h_pT | p, T | h | Entalpy as a function of pressure and temperature |
| h_ps | p, s | h | Entalpy as a function of pressure and entropy |
| h_px | p, x | h | Entalpy as a function of pressure and vapour fraction |
| h_Tx | T, x | h | Entalpy as a function of temperature and vapour fraction |
| h_prho | p, rho | h | Entalpy as a function of pressure and density. Observe for low temperatures (liquid) this equation has 2 solutions (Not valid!!) |
Specific Volume (v) (Top)
| Function | Parameters | Return | Description |
| vV_p | p | v | Saturated vapour volume |
| vL_p | p | v | Saturated liquid volume |
| vV_T | T | v | Saturated vapour volume |
| vL_T | T | v | Saturated liquid volume |
| v_pT | p, T | v | Specific volume as a function of pressure and temperature |
| v_ph | p, h | v | Specific volume as a function of pressure and enthalpy |
| v_ps | p, s | v | Specific volume as a function of pressure and entropy |
Density (rho) (Top)
| Function | Parameters | Return | Description |
| rhoV_p | p | rho | Saturated vapour density |
| rhoL_p | p | rho | Saturated liquid density |
| rhoL_T | T | rho | Saturated vapour density |
| rhoV_T | T | rho | Saturated liquid density |
| rho_pT | p, T | rho | Density as a function of pressure and temperature |
| rho_ph | p, h | rho | Density as a function of pressure and enthalpy |
| rho_ps | p, s | rho | Density as a function of pressure and entropy |
Specific entropy (s) (Top)
| Function | Parameters | Return | Description |
| sV_p | p | s | Saturated vapour entropy |
| sL_p | p | s | Saturated liquid entropy |
| sV_T | T | s | Saturated vapour entropy |
| sL_T | T | s | Saturated liquid entropy |
| s_pT | p, T | s | Specific entropy as a function of pressure and temperature (Returns saturated vapour entalpy if mixture) |
| s_ph | p, h | s | Specific entropy as a function of pressure and enthalpy |
Specific internal energy (u) (Top)
| Function | Parameters | Return | Description |
| uV_p | p | u | Saturated vapour internal energy |
| uL_p | p | u | Saturated liquid internal energy |
| uV_T | T | u | Saturated vapour internal energy |
| uL_T | T | u | Saturated liquid internal energy |
| u_pT | p, T | u | Specific internal energy as a function of pressure and temperature |
| u_ph | p, h | u | Specific internal energy as a function of pressure and enthalpy |
| u_ps | p, s | u | Specific internal energy as a function of pressure and entropy |
Specific isobaric heat capacity (Cp) (Top)
| Function | Parameters | Return | Description |
| CpV_p | p | Cp | Saturated vapour heat capacity |
| CpL_p | p | Cp | Saturated liquid heat capacity |
| CpV_T | T | Cp | Saturated vapour heat capacity |
| CpL_T | T | Cp | Saturated liquid heat capacity |
| Cp_pT | p, T | Cp | Specific isobaric heat capacity as a function of pressure and temperature |
| Cp_ph | p, h | Cp | Specific isobaric heat capacity as a function of pressure and enthalpy |
| Cp_ps | p, s | Cp | Specific isobaric heat capacity as a function of pressure and entropy |
Specific isochoric heat capacity (Cv) (Top)
| Function | Parameters | Return | Description |
| CvV_p | p | Cv | Saturated vapour isochoric heat capacity |
| CvL_p | p | Cv | Saturated liquid isochoric heat capacity |
| CvV_T | T | Cv | Saturated vapour isochoric heat capacity |
| CvL_T | T | Cv | Saturated liquid isochoric heat capacity |
| Cv_pT | p, T | Cv | Specific isochoric heat capacity as a function of pressure and temperature |
| Cv_ph | p, h | Cv | Specific isochoric heat capacity as a function of pressure and enthalpy |
| Cv_ps | p, s | Cv | Specific isochoric heat capacity as a function of pressure and entropy |
Speed of sound (Top)
| Function | Parameters | Return | Description |
| wV_p | p | w | Saturated vapour speed of sound |
| wL_p | p | w | Saturated liquid speed of sound |
| wV_T | T | w | Saturated vapour speed of sound |
| wL_T | T | w | Saturated liquid speed of sound |
| w_pT | p, T | w | Speed of sound as a function of pressure and temperature |
| w_ph | p, h | w | Speed of sound as a function of pressure and enthalpy |
| w_ps | p, s | w | Speed of sound as a function of pressure and entropy |
Viscosity (Top)
| Function | Parameters | Return | Description |
| my_pT | p, T | my | Viscosity as a function of pressure and temperature |
| my_ph | p, h | my | Viscosity as a function of pressure and enthalpy |
| my_ps | p, s | my | Viscosity as a function of pressure and entropy |
Prandtl (Top)
| Function | Parameters | Return | Description |
| Pr_pT | p, T | | |
| Pr_ph | p, h | | |
Kappa (Top)
| Function | Parameters | Return | Description |
| Kappa_pT | p, T | | |
| Kappa_ph | p, h | | |
Surface tension (Top)
| Function | Parameters | Return | Description |
| st_t | T | st | Surface tension for two phase water/steam as a function of T |
| st_p | p | st | Surface tension for two phase water/steam as a function of p |
Thermal conductivity (Top)
| Function | Parameters | Return | Description |
| tcL_p | p | tc | Saturated vapour thermal conductivity |
| tcV_p | p | tc | Saturated liquid thermal conductivity |
| tcL_T | T | tc | Saturated vapour thermal conductivity |
| tcV_T | T | tc | Saturated liquid thermal conductivity |
| tc_pT | p, T | tc | Thermal conductivity as a function of pressure and temperature |
| tc_ph | p, h | tc | Thermal conductivity as a function of pressure and enthalpy |
| tc_hs | h, s | tc | Thermal conductivity as a function of enthalpy and entropy |
Vapour fraction (Top)
| Function | Parameters | Return | Description |
| x_ph | p, h | x | Vapour fraction as a function of pressure and enthalpy |
| x_ps | p, s | x | Vapour fraction as a function of pressure and entropy |
Vapour Volume Fraction (Top)
| Function | Parameters | Return | Description |
| vx_ph | p, h | vx | Vapour volume fraction as a function of pressure and enthalpy |
| vx_ps | p, s | vx | Vapour volume fraction as a function of pressure and entropy |
