Single basin solar still with fin for enhancing productivity

Velmurugan, V.; Gopalakrishnan, M.; Raghu, R.; Srithar, K.

doi:10.1016/j.enconman.2008.05.010

Cited by 398 publications

(112 citation statements)

References 38 publications

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“…Different designs of single and double slope single basin passive solar stills with glass cover and black painted basin were constructed and tested experimentally in several countries with different climate conditions such as Saudi Arabia [10], India [11], Egypt [12], Cote D Ivoire (Ivory Coast) [13], and Malaysia [14] and each had a different cumulative productivity of 2.5, 1.88, 3.58, 4.10, and 2.26 kg/m 2 .d, respectively. The performance of those solar stills was investigated for durations of 1 day, 5 days, 3 days, 1 day, 4 days, 1 day, and 5 days in Saudi Arabia [10], Malaysia [4,6], India [11], Egypt [12], Cote D Ivoire (Ivory Coast) [13], and Malaysia [14], respectively. According to the World Health Organization (WHO), a person needs 2-3 L potable water per day for survival [15].…”

Section: D the Resultsmentioning

confidence: 99%

“…However, the PSS had lower fabrication cost of RM 82.05 compared to GSS fabrication cost of RM 416.00. In this study, GSS and PSS yielded a higher water production compared to the passive solar stills previously investigated in Malaysia [4,14,40,41], India [8,11], Italy [9], Jordan [42], Saudi Arabia [10], and Turkey [43]. The relationships between calculated (M cn ) and experimental (M cexp ) cumulative water production of GSS and PSS are shown in Figures S8 and S9 (Supporting Information), respectively.…”

Section: Cumulative Water Productionmentioning

confidence: 95%

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Potable water production using two solar stills having different cover materials and fabrication costs

Riahi

Yusof

Isa

et al. 2017

Env Prog and Sustain Energy

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Solar stills are very cost-effective technologies used in producing potable water. This work aims to investigate the productivity of two passive double sloped solar stills fabricated with different cover materials with similar shapes; polythene film (PSS) and glass (GSS). The first solar still was made of a transparent polythene film, PVC pipes and a black painted stainless steel trough as cover, frame and basin, respectively. The second one was fabricated using glass as cover, with similar basin material. Experimental outputs indicated that GSS had 1%-5% higher yield than PSS throughout the experiment. The fabrication cost of PSS was 5 times less than the cost of the GSS. The thermal energy efficiencies of PSS and GSS were obtained as 34.05% and 35.50%, respectively. A mathematical model for each solar still was developed using the relationships of heat and mass transfer and their calculated and experimental productivities were in good agreement. Water quality parameters tested showed that water produced from both solar stills met the WHO standards for drinking purposes.

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Section: D the Resultsmentioning

confidence: 99%

Section: Cumulative Water Productionmentioning

confidence: 95%

Potable water production using two solar stills having different cover materials and fabrication costs

Riahi

Yusof

Isa

et al. 2017

Env Prog and Sustain Energy

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“…The specific heat capacity of saline water is determined as [53,[62][63][64][65], Where Y is the salinity level in water C p(w) = The seawater specific heat at constant pressure expressed as J/kg K. The glass temperature is determined as, .…”

Section: Theoretical Approachmentioning

confidence: 99%

Theoretical Analysis of Continuous Heat Extraction from Absorber of Solar Still for Improving the Productivity

El‐Agouz

Kabeel

Subramani³

et al. 2018

Period. Polytech. Mech. Eng.

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IntroductionGreater growth of population and industries results in shortage of fresh water. Earth is almost covered with a larger water source and smaller land mass. People used to drink large amount of water for their thirsty need. Water available in the form of rivers, lakes cannot be consumed directly without pre-processing, as these need some purification process in order to remove bacteria and undissolved salts. In early days the possible method of getting pure water is heating the brackish water and condensing them back to get fresh water by burning fossil fuels. Due to the exhaustion of coal, crude oil and increases in global warming, the evolution of using renewable energy for getting fresh water evolved during the late 20th century. One of the best energy source applied is solar energy. Source of energy from sun is mostly environmental friendly and non polluting clean energy source. Basin type still is the most aged process of producing fresh water [1][2][3][4][5][6][7][8][9][10]. The fresh water conversion rate from the solar still system is predominantly depends on the solar intensity. The basin water temperature increases continuously due to heat energy emitted from the sun in the form of solar intensity. After reaching the boiling point of water, the water evaporates and it condenses on the solar still condenser cover. The various techniques employed in solar still, to raise the temperature of water and hence increases the productivity was studied from the detailed literatures reviews of Ravishankar et al. [11], Kabeel et al. [12] and Manokar et al. [13][14][15]. From the detailed literature studies it is clear that water temperature can be improved by either feeding waste warm water or pre heat the water by incorporating the different solar collectors or concentrators. Gupta et al. [16] theoretically analyzed the intermittent flow of waste warm water to the double basin solar still similarly same analyses was done by Yadav et al. in single basin solar still [17]. Sodha et al. [18] and Tiwari et al. [19] experimentally investigated the performance of solar still utilizing the warm water from the industry. Tiwari et al. [20] keep up a higher temperature difference between the water and collector cover by increasing the water temperature by flowing waste hot water in the basin and decrease the collector cover temperature by flowing the cold water above the surface of collector cover. This would results in increase in both evaporation and condensation

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“…Velmurugan et al [13] studied the e ect of modifying the area of the basin. They studied a solar still with sponge inside due to capillary force of sponge to suck water and increase of heating surface.…”

Section: Introductionmentioning

confidence: 99%

Performance study of an innovative heating technique for a modified solar still

2017

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Abstract. An experimental comparison of water productivity between a conventional single slope, solar still, and a modi ed one is introduced in this work. The modi ed solar still is incorporated with a new heating technique on the saline water surface using nned cover with holes. These ns are used to increase the heat transfer area between the cover and saline water; meanwhile, holes are used to allow evaporated water to go through. These experiments are held under the outdoor conditions of Tanta, Egypt. The performance of the two solar stills has been tested at a water depth of 0.05 m and a quantity of saline water of 50 L. The results indicated that the productivity of water per square meter per day for the modi ed design still is higher than the conventional still by about 30.6%.

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Single basin solar still with fin for enhancing productivity

Cited by 398 publications

References 38 publications

Potable water production using two solar stills having different cover materials and fabrication costs

Potable water production using two solar stills having different cover materials and fabrication costs

Theoretical Analysis of Continuous Heat Extraction from Absorber of Solar Still for Improving the Productivity

Performance study of an innovative heating technique for a modified solar still

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