Optimal concentration of El Oued sand grains as energy storage materials for enhancement of hemispherical distillers performance

Attia, Mohammed El Hadi; Kabeel, A.E.; Abdelgaied, Mohamed

doi:10.1016/j.est.2021.102415

Cited by 53 publications

(13 citation statements)

References 35 publications

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“…When compared to the technical specifications for the glass industry, the studied El-Oued sands failed to meet the requirements for glass industry without further treatment (Table 7). Nevertheless, El-Oued sand grains are good candidates for solar energy storage, especially as solar distillers (Diago et al 2018;Attia et al 2021). These sands may be excavated for self-compacting concrete confection (Guettala et al 2010;Guettala and Mezghiche 2011;Izemmouren et al 2015;Brahim et al 2017;Zaitri et al 2018).…”

Section: Potential Applications and Selection Criteriamentioning

confidence: 99%

A holistic approach towards characterizing the El-Oued siliceous sand (eastern Algeria) for potential industrial applications

et al. 2021

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Physicochemical, mineralogical, and thermogravimetric characterizations were carried out to assess the potential technological benefits of natural sand deposits from El-Oued district (eastern Algeria). The use of granulometric analysis, FTIR spectroscopy, X-ray fluorescence (WDXRF), X-ray diffraction (XRD), scanning electron microscope (SEM/EDX), and thermogravimetric (TGA) analysis was necessary to further highlight the main physical and chemical properties of the studied sands. The grain size distribution suggests fine-to-medium sands with a mean grain size ranged from 207 to 261 μm. However, the grain micro-texture features indicate aeolian nature of El-Oued sand, and the chemical analysis reveals that all samples contain a high ratio of silica (SiO 2 ) reaching 94% with low content of CaO, Al 2 O 3 , Fe 2 O 3 , Na 2 O, and K 2 O oxides, which reflects the siliceous nature of El-Oued sand. The mineralogy of the El-Oued sand consists mainly of α-quartz (≤ 93% SiO 2 ) with minor calcite (CaCO 3 ) and very small amounts of feldspar mineral. Furthermore, the crystallite size of Quartz in all sand samples was determined to be in the range of nanometric scale. Thermal analysis (TGA) showed that El-Oued sand was relatively stable upon 800 °C. These characteristics corroborate the interesting and promising uses of El-Oued sand in the industry and nanotechnology. KeywordsSand • Mineralogical and chemical characterization • α-Quartz • Rietveld refinement • Industrial applications

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Section: Potential Applications and Selection Criteriamentioning

confidence: 99%

A holistic approach towards characterizing the El-Oued siliceous sand (eastern Algeria) for potential industrial applications

et al. 2021

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“…It was observed that the increase in productivity reached 47.9% when using phosphate pellets with a concentration of (20 g/L) and reached 33.7% when using phosphate pellets with a concentration of (10 g/L). Moreover, Attia et al (Attia et al 2021b) studied experimentally the effect of different concentrations of sand grains (5,10,20,30,40,50, 60 and 70 g/L) to improve the hemispherical solar still performance. The results obtained that the optimal concentration of sand particles was 30 g/L, where the yield reached 7.27 L/m².day compared to 4.78 L/m².day for the still without grains of sand.…”

Section: Introductionmentioning

confidence: 99%

Effect of different basin materials on the performance of hemispherical distiller with mirrors and energy storage material

Attia¹,

Essa

Abdelgaied

et al. 2022

Preprint

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Numerous studies are being conducted on solar desalination systems with creating new designs to improve the efficiency and yield of these systems. Hemispherical solar still has a relatively large throughput because of its large exposure and evaporation surface areas compared to the other distiller designs. To get the optimal conditions of the parameters that provide the highest productivity of the hemispherical still, three hemispherical basin stills were fabricated and tested. The experiments were performed in three stages: In the first one, the traditional hemispherical solar still THSS (a reference distiller) was compared by THSS with internal reflective mirrors (THSS-IRM). In the second stage, the effect of using different basin metals (THSS with basin metal of zinc (THSS-IRMZ) and basin metal of copper (THSS-IRMC)) with internal reflective mirrors was studied. In the third stage, the two distillers were investigated under using energy storage medium (30 g/L sand grains for each). The THSS with internal reflective mirrors, basin metal of zinc, and energy storage medium is abbreviated by THSS-IRMZSG. Also, THSS with internal reflective mirrors, basin metal of copper, and energy storage medium is abbreviated by THSS-IRMCSG. Moreover, THSS with internal reflective mirrors and energy storage medium is abbreviated by THSS-IRMSG. The results showed that the combination of using internal reflective mirrors, basin material (copper) and energy storage medium provided the best improvement of hemispherical distillation device. The maximum cumulative yield of THSS-IRMCSG was 11.9 L/m².day, while the reference distillation device gave a total yield of 4.65 L/m².day. So, the productivity was improved by around 156%.

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“…The results confirmed the increase of the efficiency rates in the still with the fins of the height 2-cm and 7-cm dimension between the fins. Attia et al ( 2021b ) studied the sand grains effect by various concentrations on the hemispherical SS. The outcomes confirmed that the distillation production when the concentration of sand grains is 30 g/L is the best and produced 7270 ml/m 2 /day.…”

Section: Introductionmentioning

confidence: 99%

Energy, exergy, and economic analysis of solar still using coal cylinder fins: an experimental study

Vembu

Attia²,

Mohanasundaram

et al. 2022

Environ Sci Pollut Res

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The phenomenon of drinking water scarcity has turned into the foremost issue that the world’s populace is facing today. The Algerian desert regions, including the El Oued region (southeastern Algeria), also suffer from drinking water shortages, despite the presence of huge quantities of underground salty water. Solar distillation is among the easy and cheap solutions to solve this problem because this method relies on renewable energy (solar energy) as a key factor in providing drinking water from saltwater. As solar energy is intermittent energy, energy storage is required for augmenting the yield. Coal cylinders are low cost and locally available materials that can be used as fins and energy storage materials. In this research, two solar stills such as conventional solar still with a black absorber (CSS-BA) and CSS with a black absorber and coal cylinders (CSS-BA&CC) were fabricated and tested. The CSS-BA&CC produced a potable water yield of about 4.16 kg per day while the CSS-BA could only produce 2.88 kg, which is 44.44% lower when compared to the CSS-BA&CC. The thermal efficiency was noted to be 22.04 % and the exergy efficiency is 1.07 % in the CSS-BA. Similarly, the thermal efficiency is 32.46% and exergy efficiency is 1.90% for the CSS-BA&CC. The experimental results proved that the potable water yield of the CSS-BA was enhanced by coal cylinders (sensible heat energy storage material -SHESM) which is a locally available low-cost material.

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Optimal concentration of El Oued sand grains as energy storage materials for enhancement of hemispherical distillers performance

Cited by 53 publications

References 35 publications

A holistic approach towards characterizing the El-Oued siliceous sand (eastern Algeria) for potential industrial applications

A holistic approach towards characterizing the El-Oued siliceous sand (eastern Algeria) for potential industrial applications

Effect of different basin materials on the performance of hemispherical distiller with mirrors and energy storage material

Energy, exergy, and economic analysis of solar still using coal cylinder fins: an experimental study

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