Numerical study of heat and mass transfer in mixed convection inside a vertical channel with a binary liquid film streaming in one of its heated walls

We consider a thin binary liquid film streaming on the internal face of one of the two parallel plates. The wet plate is submitted to a constant and uniform thermal flow while the second is adiabatic. The presented simulations concern a vertical channel whose dry wall is adiabatic and two binary mixtures: ethanol-water and ethylene glycol-water. We show the film thickness importance and mixture composition in the mass and thermal transfers. For the ethanol-water liquid mixture, the results seem to be foreseeable while it is different for the second mixture (ethylene glycol-water). We show, for example, that for a particular ethylene glycol-water mixture concentration at the canal entry, it is possible to evaporate in the same conditions more water than if the film at the entry was pure water only.