Experimental investigation of a solar still combined with phase change material (RT58) in southern India climatic conditions

Sahu, Susant Kumar; Natarajan, Sendhil Kumar; K, Arjun Singh; Suraparaju, Subbarama Kousik

doi:10.1177/09544062221139986

Cited by 23 publications

(5 citation statements)

References 44 publications

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“…It is observed that the outcomes from the snail shell based solar still are significant and are in line with the previous studies such as solar still with sand troughs (Nagaraju et al 2022), PCMs (Sahu et al 2023;Suraparaju et al 2024a), photothermal absorbers similar to snail shells and natural fibers (Suraparaju et al 2024b). Therefore, the current small scale prototype SSSS can be scaled up for industrial use and sustainable drinking water uses in rural and coastal areas.…”

Section: Enviro-economic Resultssupporting

confidence: 85%

Performance analysis of snail shell biomaterials in solar still for clean water production: nature-inspired innovation for sustainability

Dhivagar,

Suraparaju,

Atamurotov

et al. 2024

Water Science &Amp; Technology

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In this current investigation, the experimental performance of a solar still basin was significantly enhanced by incorporating snail shell biomaterials. The outcomes of the snail shell-augmented solar still basin (SSSS) are compared with those of a conventional solar still (CSS). The utilization of snail shells proved to facilitate the reduction of saline water and enhance its temperature, thereby improving the productivity of the SSSS. Cumulatively, the SSSS productivity was improved by 4.3% over CSS. Furthermore, the SSSS outperformed in energy and exergy efficiency of CSS by 4.5 and 3.5%, respectively. Economically, the cost per liter of distillate (CPL) for the CSS was 3.4% higher than SSSS. Moreover, the SSSS showed a shorter estimated payback period (PBP) of 141 days which was 6 days less than CSS. Considering the environmental impact, the observed CO2 emissions from the SSSS were approximately 14.6% higher than CSS over its 10-year lifespan. Notably, the SSSS exhibited a substantial increase in the estimated carbon credit earned (CCE) compared to the CSS. Ultimately, the research underscores the efficacy of incorporating snail shells into solar still basins as a commendable approach to organic waste management, offering economic benefits without compromising environmental considerations.

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Section: Enviro-economic Resultssupporting

confidence: 85%

Performance analysis of snail shell biomaterials in solar still for clean water production: nature-inspired innovation for sustainability

Dhivagar,

Suraparaju,

Atamurotov

et al. 2024

Water Science &Amp; Technology

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“…They found that using glass cooling and sisal fibers improved the yield by 104.5% compared to classical solar distillers. Sahu et al 31 empirically improved the yield of solar distiller by 46% using PCM. Suraparaju et al 32 empirically studied the influences of paraffin wax on the yield of solar distiller.…”

Section: Introductionmentioning

confidence: 99%

Influence of high porous sponges for improving the interfacial evaporation from hemispherical solar distillers

Sathyamurthy,

Kabeel,

El Hadi Attia

et al. 2023

Sci Rep

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The present study aims to improve the palatable water production from the hemispherical cover solar distiller (HSD). To augment the palatable water produced from the hemispherical cover, a black sponge was utilized as a porous medium using different thicknesses, which augments the interfacial evaporation through the capillary effect of the water through the sponge. The rate of condensation of the hemispherical cover depends on the higher interaction of air from the ambient through wind velocity as the exposure area of the hemispherical cover is relatively higher as compared to the other traditional distillers. The rate of evaporation from the distillers depends on the interfacial materials used in the distillation unit, and this is achieved by using a highly porous black sponge to attain a higher evaporation rate. The thickness of the black porous sponge was optimized (1 to 4 cm), which was the operating parameter for better interfacial evaporation through the sponge, and the same has been compared to the conventional HSD without a porous sponge medium. Results showed a significant improvement in the evaporation rate using a porous medium as the palatable water produced from the HSD was improved by 72.29% using 3 cm as sponge thickness inside compared to the conventional HSD without the porous medium. The cumulative palatable water produced from the HSD using 3 cm as sponge thickness was found as 7150 mL/m2, whereas the conventional HSD without sponge, it was found as 4150 mL/m2. Moreover, using a porous sponge layer as an interfacial evaporation medium, the exergy and energy efficiencies were improved by about 512.87 and 70.53%, respectively. Similarly, with the influence of a porous sponge as an interfacial evaporation medium, the distilled water cost decreased by 41.67% more than the conventional HSD.

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“…RT58-PCM increases solar energy production by 46% in comparison to CSS. In terms of cost/liter of fresh water generated and payback period, economic study found that solar still with RT58-PCM is more economically feasible than SSS [6].…”

Section: Introductionmentioning

confidence: 99%

Exergy Analysis of a Simple Solar Still Augmented with a Flat-Plate Solar Collector

Al-Tahaineh¹

2023

MMEP

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A single-stage basin solar still augmented with flat-plate solar collector was investigated to examine the effect of the available amount of exergy on still production. For different temperatures, solar intensities, and distilled water production, the quantity of exergy was computed. Calculations were performed based on experimental measurements and readings for various weather and operational conditions. The total distilled water produced from the collector augmented still is found to be 1807 ml/day which is 77 % larger than that when the still worked without collector (1016 ml/day).

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Experimental investigation of a solar still combined with phase change material (RT58) in southern India climatic conditions

Cited by 23 publications

References 44 publications

Performance analysis of snail shell biomaterials in solar still for clean water production: nature-inspired innovation for sustainability

Performance analysis of snail shell biomaterials in solar still for clean water production: nature-inspired innovation for sustainability

Influence of high porous sponges for improving the interfacial evaporation from hemispherical solar distillers

Exergy Analysis of a Simple Solar Still Augmented with a Flat-Plate Solar Collector

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