EVAPEX a boundary layer approach for precise water productivity modeling in solar stills
Abstract
In this study, we present Evapex 1 , an analytical framework based on boundary layer theory for modeling vapor transport in solar stills, alongside a numerical model developed using COMSOL. Validation shows that Evapex achieves average errors of 5.27% against experimental data and an exceptional 1.6% against the Chilton‑Colburn model. The numerical model achieves -10.15% against experiments and 3.9% against Chilton‑Colburn. The remarkably low error of Evapex demonstrates its outstanding accuracy, making it a powerful and efficient tool for designing passive solar desalination systems.
Fields of Study & Subjects
Solar-Powered Water Purification Methods
Membrane Separation Technologies
Innovations in Aquaponics and Hydroponics Systems
Publication details
- Journal / source
- Results in Engineering
- Publisher
- Elsevier BV
- Volume
- 32
- Pages
- 111984–111984
- Publication date
- 14 July 2026
- Language
- EN