Modelling heat and mass transfer in solar evaporation systems - Archive ouverte HAL Access content directly
Journal Articles International Journal of Heat and Mass Transfer Year : 2021

Modelling heat and mass transfer in solar evaporation systems

(1) , (1) , (1) , (1)
1
R. Fillet
  • Function : Author
V. Nicolas
  • Function : Author
V. Fierro
  • Function : Author
A. Celzard
  • Function : Author
  • PersonId : 993057

Abstract

A two-dimensional axisymmetric model of a solar evaporator was developed, based on a rigid biosourced open-cell foam floating on the surface of water contained in a beaker, including a set of boundary conditions and water transport in the porous medium. Experiments were carried out to validate the model for two cases, with and without a layer of insulating material around the beaker. Several concrete cases of experimental solar evaporation studies recently reported in the literature, with or without insulation, radiation intensification, etc., have then been studied in the light of our model. We have thus been able to compare the observed trends with those of the numerical model in order to explain the results reported in the literature and, in some cases, to find a geometric optimum. The effect of ambient conditions on the evaporation rate was investigated, and significant changes were observed by modifying solar input, air temperature and air humidity. We also showed that increasing the evaporation area and using an insulating layer between the water and the evaporative material increases the evaporation performance.
Fichier principal
Vignette du fichier
Modelling heat and mass transfer_v07.pdf (1.47 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03450059 , version 1 (25-11-2021)

Licence

Attribution - NonCommercial - NoDerivatives - CC BY 4.0

Identifiers

Cite

R. Fillet, V. Nicolas, V. Fierro, A. Celzard. Modelling heat and mass transfer in solar evaporation systems. International Journal of Heat and Mass Transfer, In press, 181, pp.121852. ⟨10.1016/j.ijheatmasstransfer.2021.121852⟩. ⟨hal-03450059⟩
23 View
67 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More