Improving the trays solar still performance using reflectors and phase change material with nanoparticles

Abdullah, A.S.; Essa, F.A.; Bacha, Habib Ben; Omara, Z.M.

doi:10.1016/j.est.2020.101744

Cited by 158 publications

(28 citation statements)

References 53 publications

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“…El factor de empuje 𝛽 • ∆𝑇 de la ecuación 5 tiene que ser modificado para tener en cuenta la variación de la humedad del aire a lo largo de su ascenso (Abdullah et al, 2020;Parsa et al, 2020), obteniéndose:…”

Section: Figuraunclassified

Desalinizador solar de múltiples etapas para su aplicación en zonas costeras del Ecuador

et al. 2022

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Se ha desarrollado un desalinizador solar con recuperación de calor para su aplicación en zonas costeras del Ecuador con escasez de agua dulce. El aparato consta de una torre de destilación de 3 etapas conectada a un colector solar plano. La energía solar absorbida por el colector es transferida mediante circulación natural a la torre de destilación, donde en cada etapa se recupera el calor de condensación del agua para incrementar el destilado producido. El diseño modular del equipo permite variar la producción de agua, desde unos pocos litros hasta más de un metro cúbico al día. El prototipo tiene pocas partes móviles y puede ser armado y desarmado rápidamente, lo que facilita su operación y mantenimiento. La producción mensual promedio del desalinizador varía entre 4.3 y 5.8 kg/día (2.44 y 3.29 kg/m2). El desempeño del desalinizador fue analizado con un modelo matemático, cuya exactitud fue mejorada al evaluar experimentalmente los coeficientes de transferencia de calor por convección presentes en la torre de destilación. Se realizó una simulación en Matlab-Simulink que permite predecir las temperaturas, destilado generado y flujos de calor en la unidad. La simulación de un día completo de operación del destilador tuvo resultados muy satisfactorios, con una diferencia de únicamente el 7.7 % entre los datos teóricos y experimentales. La simulación también fue utilizada para analizar mejoras en el desempeño del equipo, determinándose que la producción del desalinizador podría incrementarse hasta en un 107 %.

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Section: Figuraunclassified

Desalinizador solar de múltiples etapas para su aplicación en zonas costeras del Ecuador

et al. 2022

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“…The results indicated that the proposed TSD achieved a 95.0% increment in the distilled yield over the conventional SSSD. In a consecutive effort (Abdullah et al, 2020b), they experimentally studied the effect of coating the TSD surfaces with the black paint mixed CuO nanopowder. Moreover, para n wax doped with nano CuO was added below the distiller basin as a TES material.…”

Section: Literature Surveymentioning

confidence: 99%

Experimental Investigation On a Novel Design of Hemispherical Solar Distiller With v-Corrugated Iron Trays And Wick Materials For Improving Freshwater Production

Attia¹,

Zayed

Abdelgaied

et al. 2022

Preprint

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The low energy efficiency of the solar distillers is one of the most key barriers to their effectual usage in the desalination domain. In this work, an experimental investigation was conducted to enhance the freshwater productivity of the hemispherical solar distiller. This was achieved by utilizing flat and v-corrugated iron trays configurations on the bottom of the distiller basin in order to increase the vaporization surface area for better heat transfer of saline water. Three distillers were designed and examined; namely, conventional hemispherical solar distiller (CHSD), hemispherical solar distiller with flat iron trays (HSD-FIT), and hemispherical solar distiller with v-corrugated iron trays (HSD-VIT). Moreover, the effects of using wick materials (WM) in the basin of HSD-FIT and HSD-VIT have been also investigated and compared to that of CHSD. A comparative thermo-economic analysis of HSD-VITWM, HSD-FITWM, HSD-VIT, HSD-FIT, and CHSD has been conducted to determine the better modification that maximizes the performance of hemispherical stills. Experiments were carried out at the desert climate conditions of El-Oued (33°27′N, 7°11′E), Algeria. The results showed that all modifications revealed good thermo-economic performance enhancements and the HSD-VITWM achieved the maximal improvement from both freshwater production and energo-economic performance. The freshwater productivity and energy efficiency of the HSD-VITWM were improved by 83.12 and 81.67%, respectively, relative to CHSD. Additionally, the cost of freshwater production was lowered by 41.72%.

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“…Abdulla et. Al 2020 examined the influence of mixing copper oxide (CuO) nanoparticles with coating paint as well as (Nano-CuO) mixed with paraffin wax [24]. The surfaces of solar still coated with black paint-Nano-CuO mixture to improve the heat transfer properties.…”

Section: Nanoparticles In Solar Stillmentioning

confidence: 99%

Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

Faisal

Hameed

2021

Al-Furat Journal of Innovations in Mechanical and Sustainable Energy Engineering

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The growing demand for freshwater is a challenging task facing human society due to the rapid rise of the global population. Solar distillation emerged as an economical, environmentally friendly practical technology to produce freshwater. Solar still is a proven technology to produce clean water and removing dissolved and solid impurities as well as chemical hazardous, organic bacteria, and non-organic contaminants. Rural and remote regions that suffer from impure water can beneficiate this technique. However, the daily productivity of single slope solar still SSSS is questionable. Hence, several researchers focused on enhancing the productivity and efficiency of SSSS through adopting a wide range of modifications. This review reports various modification techniques that have been investigated to improve SSSS efficiency and clean water productivity. It mainly considered modifying the absorption plate, thermal energy storage, utilization of reflectors, adopting nanotechnology, integrated condenser, cover cooling, Humidification-dehumidification HDH, and Basin water preheating technique.

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Improving the trays solar still performance using reflectors and phase change material with nanoparticles

Cited by 158 publications

References 53 publications

Desalinizador solar de múltiples etapas para su aplicación en zonas costeras del Ecuador

Desalinizador solar de múltiples etapas para su aplicación en zonas costeras del Ecuador

Experimental Investigation On a Novel Design of Hemispherical Solar Distiller With v-Corrugated Iron Trays And Wick Materials For Improving Freshwater Production

Solar Still Productivity Improvement Techniques and Recent Advancements: Review Study

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