Naslov
Numerical modelling of wall film condensation and evaporation processes

Autori
Vujanović, Milan ; Petranović, Zvonimir ; Edelbauer ; Wilfried

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, ostalo, znanstveni

Izvornik
Digital Proceedings of the 3rd SEE SDEWES Conference / Ban, Marko [et al.] - Zagreb, 2018

Skup
3rd South East European Conference on Sustainable Development of Energy, Water and Environment System Conference (SEE SDEWES 2018)

Mjesto i datum
Novi Sad, Srbija, 30.06.2018. - 04.07.2018

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
CFD, Wall film, Condensation, Evaporation

Sažetak
This work presents the theory and the validation of the implemented wall condensation - evaporation model. The turbulence in the near wall region is modelled by means of the wall functions. Based on the wall functions, the heat transfer coefficient is calculated and the mass transfer coefficient is evaluated using the heat and mass transfer analogy. The implemented model takes into account the thickening and reducing of the flow boundary layer as a consequence of the condensation and evaporation processes. The heat transfer through the liquid film is neglected and the interface temperature is equal to the wall temperature. The model is thoroughly validated and compared with experimental research. In the results section, first the CONAN condensation cases are shown, afterwards the model was enhanced with the evaporation module which was validated against several evaporation cases published in different scientific publications.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA