Experimental investigation on the evaporation of a wet porous layer inside a vertical channel with resolution of the heat equation by inverse method. (15th October 2016)

• Record Type: Journal Article
• Authors: Terzi, A.; Foudhil, W.; Harmand, S.; Ben Jabrallah, S.
• Is Part Of: Energy conversion and management. Volume 126(2016)
• Page Start: 158
• Page End: 167
• Publication Date: 2016-10-15
• Subjects: Evaporation -- Porous layer -- Inverse method -- Heat and mass transfer; Direct energy conversion -- Periodicals; Energy storage -- Periodicals; Energy transfer -- Periodicals; Énergie -- Conversion directe -- Périodiques; Direct energy conversion; Periodicals; 621.3105
• DOI: 10.1016/j.enconman.2016.07.085
• Languages: English
• ISSNs: 0196-8904

Abstract

Highlights: Experimental study of the evaporation of a wet porous layer inside a vertical channel. Resolution of the heat equation by inverse method. The use of the porous layer is more efficient for high heating flux and low liquid inlet flow. To improve the evaporation, the system must operate at low water inlet flow. Abstract: In this paper, we realize an Experimental study of the evaporation of a wet porous layer inside a vertical channel. To develop this study, an experimental dispositive was realised. We measure the temperature along the plate and the evaporated flow rate using the test bed. From these measurements we note that the profiles of the temperature are divided into two areas: the heating and the evaporation zone. We also note that the use of the porous layer is more efficient for high heating flux and low liquid inlet flow. In addition, we studied different dimensionless numbers by solving the energy equation by inverse method. We note that the latent Nusselt number is more important than the sensible Nusselt Number, which proves that the flow dissipated by evaporation is greater than the one used by the film to increase its temperature.