VAPORIZATION_TEMPERATURE

[eliascm21]

May I ask where I can find the values of default VAPORIZATION_TEMPERATURE of the pre-defined species? Which is the file and which is the variable that you use? I am particularly interested in N-PENTANE and DODECANE.

Thanks in advanced.

[drjfloyd]

They can be found in prop.f90 in the source; however, if you have a liquid droplet define with &PART, then FDS will write the vaporization temperature to the .out file.

[eliascm21]

Thank you, I found the values in prop.f90. I guess that the variable is the T_BOIL (Liquid boiling temperature).
In the .out file I could not find these values even though I use &PART (FDS-6.8.0 version)

[drjfloyd]

Current version does the following (see the very end). Not sure when we added the additional ouptut.

WATER VAPOR
Molecular Weight (g/mol) 18.01528
Ambient Density (kg/m^3) 0.749
Initial Mass Fraction 0.000
Enthalpy of Formation (J/kg) -1.342E+07

Sub Species Mass Fraction Mole Fraction
WATER VAPOR 1.000000E+00 1.000000E+00

 Viscosity (kg/m/s) Ambient,  293 K:  1.052E-05
                              500 K:  1.770E-05
                             1000 K:  3.583E-05
                             1500 K:  5.206E-05
                             2000 K:  6.615E-05

Therm. Cond. (W/m/K) Ambient, 293 K: 1.961E-02
500 K: 3.460E-02
1000 K: 8.212E-02
1500 K: 1.367E-01
2000 K: 1.900E-01
Enthalpy (J/kg) Ambient, 293 K: -1.343E+07
500 K: -1.304E+07
1000 K: -1.198E+07
1500 K: -1.075E+07
2000 K: -9.369E+06
Spec. Heat (J/kg/K) Ambient, 293 K: 1.863E+03
500 K: 1.955E+03
1000 K: 2.292E+03
1500 K: 2.627E+03
2000 K: 2.873E+03
Diff. Coeff. (m^2/s) Ambient, 293 K: 2.095E-05
500 K: 5.775E-05
1000 K: 1.976E-04
1500 K: 3.947E-04
2000 K: 6.404E-04
Gibbs Energy Amb. (kJ/mol), 293 K: -2.972E+02
500 K: -3.382E+02
1000 K: -4.486E+02
1500 K: -5.696E+02
2000 K: -6.986E+02

Liq. Enthalpy (J/kg) Melt 273 K: -1.598E+07
323 K: -1.577E+07
Boil 373 K: -1.556E+07

Liq. Spec. Heat (J/kg/K) Melt 273 K: 4.228E+03
323 K: 4.181E+03
Boil 373 K: 4.217E+03

Heat of Vapor. (J/kg) Melt 273 K: 2.501E+06
323 K: 2.385E+06
Boil 373 K: 2.269E+06

[eliascm21]

Great, I found it, thank you very much