[hamed.majeed]

I need to input "water vapor" properties for a flashing of liquid water problem. I'm using the Eulerian model and evaporation-condensation model in Fluent.

I chose T_ref = 298.15 K
I put the standard state enthalpy for liquid = 0.
And, I put the standard sate enthalpy for vapor = Latent heat value at reference temperature = (2442 kJ/kg)*(18.01528 kg/kmol) = 43993.31376 kJ/kmol


1. My question is that is 43993.31376 kJ/kmol the right value to put for T_ref 298.15K??
2. The default value shows a negative sign to the value of standard state enthalpy? Should it be -43993.31376 kJ/kmol for me!!

[soumitra2102]

Originally Posted by hamed.majeed

1. My question is that is 43993.31376 kJ/kmol the right value to put for T_ref 298.15K??
2. The default value shows a negative sign to the value of standard state enthalpy? Should it be -43993.31376 kJ/kmol for me!!

Do you know the answer yet?, I have the same question.