Performance evaluation of double slope solar still augmented with binary eutectic phase change material and steel wool fibre

Agrawal, Rahul; Singh, Krishna Deo Prasad

doi:10.1016/j.seta.2021.101597

Cited by 10 publications

(4 citation statements)

References 45 publications

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“…Numerous theoretical, conceptual, and experimental studies on the development of binary mixtures have been conducted [20,21,22]. Agrawal et al [23] conducted an experiment employing steel wool fibre (SWF) and binary PCM. The results demonstrate that the integration of binary PCM in modified systems still increases cumulative production and energy efficiency by 35% and 37%, respectively.…”

Section: Introductionmentioning

confidence: 99%

Enhancing the performance of double-slope solar still using nano-enhanced eutectic phase change materials and steel wool fibre as wick material

Gupta,

Solanki

2024

J Braz. Soc. Mech. Sci. Eng.

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Energy storage in the form of sensible and latent heat is one of the prominent method to enhance the performance of any solar thermal system. Solar desalination is the viable method to convert the saline water into potable water but due to its lower yield, it can not be used as regular source of water. The current investigation deals with the enhancement in water yield of double slope solar still by embedding eutectic phase change material (PCM) (Myristic acid + Stearic acid), nano enhanced PCM and wick material (steel wool fibre). Ag2O3 nanoparticles at concentrations of 1.5 wt% were mixed in eutectic PCM to increase the thermal conductivity of nano enhanced PCM. The energy and exergy analyses of four various modified cases namely; CSS (Still without PCM), DSS-1 (Still with eutectic PCM), DSS-2 (Still with eutectic PCM and Steel wool fibre) and DSS-3 (Still with nano enhanced eutectic PCM) was carried out in central India (23.24° N and 77.41° E). The findings reveals that the cumulative yields for CSS, DSS-1, DSS-2 and DSS-3 are around 1.82, 2.44, 3.40, and 4.22 kg/m 2 . Additionally, DSS-3 cumulative fresh water production was around 132, 72.9 and 24.1% greater than that of CSS, DSS-1, and DSS-2 respectively. The average energy efficiency of DSS-3 was 49%, which is greater than CSS (22.21%), DSS-1 (30.42 %) and DSS-2 (41%). The findings also depict that the combined impact of PCM and nanoparticles displays an average exergy efficiency of 12.2%, which is greater than CSS, DSS-1 and DSS-2 by 3.18, 5.47, and 11%, respectively.

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Section: Introductionmentioning

confidence: 99%

Enhancing the performance of double-slope solar still using nano-enhanced eutectic phase change materials and steel wool fibre as wick material

Gupta,

Solanki

2024

J Braz. Soc. Mech. Sci. Eng.

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“…The solar still is simple in design and operation. Desalination using a solar still saves money and is better for the environment [3]. Researchers from all over the world are working to improve the efficiency of solar stills by coming up with new ways of doing things, such as using fins and energy storage materials (ESM) [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the influence of coir fibres on solar still efficiency and economic viability

Kumar,

Seenivasan,

Hemalatha

et al. 2023

E3S Web Conf.

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The primary objective of this study is to determine the Coir fibres (CF) utilization in solar stills (SS) to boost the quantity of freshwater production. By placing dry CF fibres in the absorber basin, researchers were able to accelerate the rate at which water evaporated from the SS. Under various CF densities, the freshwater production of the absorber basin was measured (8, 11, 14, 18, 20, 23, and 26). The outcomes demonstrated that yield was raised by 27.23 percent after 18-fiber SSCF was added to the absorber basin. There were 14.27 percent, 19.40 percent, 24.57 percent, 25.00 percent, 16.28 percent, and 6.23 percent yield improvements for solar stills with 8, 11, 14, 18, 20, 23, and 26 fibres in the absorber basin, respectively, as compared to a CSS. The results demonstrate that compared to CSS, the cost to produce one litre of freshwater with SSCF is reduced by 23.1%. The return of investment for SSCF is much more immediate than it is for CSS. An estimated ₹242 was needed to produce 1 litre of freshwater using CSS, while an estimated ₹199 was needed to produce 1 litre of freshwater using SSCF. The payback time for SS was only 6.23 months, which was significantly less than that of solar panels. CF are preferable to other materials for use in the solar still due to their lower cost and higher energy efficiency.

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“…Their findings showed that the combined utilization of the modifications significantly improved the overall distillate. Agrawal and Singh [31] studied a double-slope SDS with PCM and steel wool. By adjusting the water depth and applying the modifications, energy efficiency improved by 41%.…”

Section: Introductionmentioning

confidence: 99%

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

2022

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Solar desalination systems are effective and sustainable applications that are utilized to obtain potable water from saline or contaminated water. In this research, three solar desalination systems, including a conventional system, a phase change material (PCM)-based thermal energy storage unit (TESU), and a natural dolomite powder integrated PCM-based TESU, were structured and experimentally investigated. The developed solar desalination systems were analyzed simultaneously and the findings were discussed in detail. According to the empirically obtained outcomes, utilizing PCM-based TESUs and dolomite-powder-embedded PCM-based TESUs increased daily cumulative productivity by 10.15% and 17.70%, respectively, in comparison to the conventional distiller. Employing dolomite powder increased the energy and exergy efficiencies of the conventional distiller from 15.91% to 18.28% and from 1.26% to 1.78%, respectively. Moreover, environmental metrics such as global warming potential and the sustainability index of the developed solar desalination systems were analyzed within the scope of this work.

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Performance evaluation of double slope solar still augmented with binary eutectic phase change material and steel wool fibre

Cited by 10 publications

References 45 publications

Enhancing the performance of double-slope solar still using nano-enhanced eutectic phase change materials and steel wool fibre as wick material

Enhancing the performance of double-slope solar still using nano-enhanced eutectic phase change materials and steel wool fibre as wick material

Evaluating the influence of coir fibres on solar still efficiency and economic viability

Experimental Performance Analysis of a Solar Desalination System Modified with Natural Dolomite Powder Integrated Latent Heat Thermal Storage Unit

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