Estudo experimental e numérico do processo de destilação solar para produção de água potável
DOI:
https://doi.org/10.21712/lajer.2025.v12.n2.p28-41Keywords:
water resources, solar energy, distillation, potable, mathematical modelAbstract
With only 2.5% of the available water being freshwater, solar distillation emerges as a promising solution to make it suitable for consumption. The aim of this study was to analyze the feasibility of producing potable water from a solar cascade still (SCS) through experimental and numerical studies. The experiments involved exposing the SCS to sunlight, continuously recording the temperature, and analyzing the distilled water. Additionally, different configurations of the solar still were studied to improve productivity. Mathematical simulations of the distillation process were implemented using the free software Scilab®. The results showed that simple and accessible improvements, such as the use of deflectors and forced convection, directly affected the efficiency of the SCS, increasing daily productivity by up to 2.19 times. The best system configuration provided acceptable determination coefficients (R² ≈ 0.80), demonstrating congruence between the experimental data and the obtained mathematical model. Finally, the study demonstrated the feasibility of potable water production in accordance with legal standards, contributing to the search for sustainable solutions in water resource management.
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