A numerical investigation of the enhancement of single-slope single-basin solar still productivity

Hameed, Hassanain Ghani; Diabil, Hayder Azeez Neamah; Al-moussawi, M.

doi:10.1016/j.egyr.2022.11.199

Cited by 13 publications

(5 citation statements)

References 30 publications

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“…These values were utilized to calculate the production rate based on 12 h operation, which was determined to be 416.54 L/year or an average of 1.14 L/day. Our results are in accordance with the previous finding of the studies 58 , 59 . Accurate measurement of the production rate is crucial, considering factors such as light intensity and environmental conditions, to assess optimal operation and potential modifications.…”

Section: Theoretical Considerationsupporting

confidence: 94%

Performance enhancement of the solar still using textiles and polyurethane rollers

Wiener,

Khan,

Shah

2024

Sci Rep

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The acquisition of clean drinking water in regions with limited power sources has been a challenge of paramount concern. Solar stills have emerged as a popular and sustainable option for obtaining clean water in such regions. This process involves employing solar radiation to heat up water, which is then condensed to obtain potable water. The present study introduces a solar still system that is both cost-effective and energy-efficient, while simultaneously ensuring sustainability. Fabric-coated polyurethane rollers with capillary action enhance evaporation area, leading to notable performance improvements. Water vapour condensed on the cooling chamber's inclined aluminium plate and collected in the distillate chamber within the solar still. The thermal, energetic, and economic performance and productivity of the proposed model were evaluated. The fabricated solar still boasted maximum instantaneous system efficiency and exergy efficiency of approximately 62.16% and 7.67%, respectively. This system's cost-effectiveness and performance improvements are particularly noteworthy. The daily average distillate productivity of the proposed still was estimated at 1.14 L/m2, resulting in an annual production rate of 416.54 L/year. The estimated cost of producing 1 L of distillate was 0.023 $.

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Section: Theoretical Considerationsupporting

confidence: 94%

Performance enhancement of the solar still using textiles and polyurethane rollers

Wiener,

Khan,

Shah

2024

Sci Rep

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“…To accomplish these goals, researchers have also been concentrating on the solar still technique. 3 Solar still technique works on the process of evaporating water using solar thermal energy and then collecting it, once it has condensed at the inner surface of glass. 4 A solar still uses a transparent collector to concentrate the sun's rays and evaporate filthy water.…”

Section: Introductionmentioning

confidence: 99%

“…Solar stills are a potential solution for fulfilling local and rural freshwater needs. To accomplish these goals, researchers have also been concentrating on the solar still technique 3 . Solar still technique works on the process of evaporating water using solar thermal energy and then collecting it, once it has condensed at the inner surface of glass 4 …”

Section: Introductionmentioning

confidence: 99%

CFD and artificial neural network‐based modeling approach for the annual performance assessment of single slope single basin solar still

Verma,

Singh

2024

Heat Trans

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Thermal performance modeling and performance prediction of a solar still which is single basin single slope (SBSS) for the typical climatic condition of India at Jalandhar (31.3260° N, 75.5762° E) is analyzed in the present work. A numerical investigation of an SBSS solar still is conducted during the month of June 2022 using the ANSYS Fluent 2021 computational fluid dynamics (CFD) package and artificial neural network (ANN) prediction model. A user define function is written and used in fluent to formulate the problem with 9‐h solar radiation flux, on solar still glass surface. The simulation outcomes for surface temperature at three different water depths were compared with the existing experimental study. Water temperature and productivity of freshwater were well aligned with experimental results. Three‐dimensional domain is used with a two‐phase volume of fluid model for the condensation and evaporation processes in a solar still. The performance evaluation parameters, that is, coefficients of convective, evaporative, and radiative heat transfer, different temperature values, distillation output, and system efficiency were calculated numerically. The parametric analysis is expanded, and an ANN model in MATLAB R2020a is utilized to estimate yearly performance and reduce the high computational cost of numerical analysis. The data for solar radiation, design, and operational parameters are fed into the ANN model, and as a result, the water temperature at various depths is computed. The ANN model was trained using numerical results computed for the month of June and tested, showing 99.7% accuracy with CFD results. The annual performance of the solar still was evaluated using ANN models for 9 h of the day and with different boundary conditions. To decrease computational and experimental costs, the recommended technique of combined CFD and ANN models for computing the annual performance of (SBSS) solar still is the most effective option.

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“…Most research studies indicate that desalination technology based on solar energy is the most efficient method for producing cheap freshwater (Abdullah et al 2023a). Hameed et al (2023) created the pyramid solar still and single slope solar still (SSSS) to compare thermal performance, productivity, and efficiency. In remote areas with limited access to electricity and other resources, the solar desalination process is the most effective means of producing freshwater from seawater.…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology and neural networks in pyramid solar still for seawater desalination: An optimization and prediction strategy

2024

Global NEST Journal

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<p>Potable water is essential in various aspects of daily life. Converting brackish water to drinkable water using traditional methods is costly and has environmental impacts. Solar energy is preferred over fossil fuels and other energy sources due to its cost and environmental benefits. Solar stills are increasingly popular due to the growing need for drinkable water, but their performance requires improvement. The study examines the pyramid solar still (PSS) productivity using different operating parameters, such as solar intensity (350-950 W/m2), water inlet temperature (30-50°C), water depth (4-8 cm), and insulation thickness (0.05-0.15m). The response surface technique (RSM) was used to examine the performance of the still under different operating conditions. The RSM approach optimized the process for maximum output and reduced testing time and effort. To verify the optimum response derived from RSM, the artificial neural networks (ANN) model was implemented. The comparative studies of the ANN and RSM models demonstrates a strong correlation with the outcomes achieved in maximizing the productivity of PSS. It found that the ideal values for solar intensity, water intake temperature, water depth, and insulation thickness are 950 W/m2, 50°C, 4 cm, and 0.15 m, respectively. These parameters contribute to the production of 2.585 kg/m2 of distillate.</p>

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A numerical investigation of the enhancement of single-slope single-basin solar still productivity

Cited by 13 publications

References 30 publications

Performance enhancement of the solar still using textiles and polyurethane rollers

Performance enhancement of the solar still using textiles and polyurethane rollers

CFD and artificial neural network‐based modeling approach for the annual performance assessment of single slope single basin solar still

Application of response surface methodology and neural networks in pyramid solar still for seawater desalination: An optimization and prediction strategy

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