heat and mass Udf
 

Hi all,
Now, I am studying to improve heat and mass transfer between multicomponent particle and gas phase (spray drying process). As you know, we have some laws (1 for heating to T_ vapor, 2 for evaporation, 3 for boiling, 6 for heating).
I do not know if I combine the DPM_Heat_mass, I must not use above laws or can I use this combined function instead of 2nd law?
Besides, do you know why I use only DPM_heat_mass as udf manual (2.5) of version 12 and inactive all of custom laws, I found that droplet evaporate only when the Temperature reach T _ boiling (100oC)
Thank all