Modelling and performance analysis of a regenerative solar desalination unit

Zurigat, Yousef H.; Abu-Arabi, Mousa

doi:10.1016/j.applthermaleng.2003.11.010

Cited by 226 publications

(69 citation statements)

References 8 publications

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“…Similar pattern has also been reported in previous works [6,30,31]. Figures 5 and 6 show the hourly water production for PSS and GSS, respectively.…”

Section: Effect Of Solarsupporting

confidence: 71%

“…Such trend has been reported in some previous studies [4,6,[30][31][32][33][34][35][36][37][38][39]. It was also observed that the temperatures of water (T w ) and inner cover (T ci ), hourly experimental (M hexp ) and calculated (M hn ) productivities and the rates of evaporative (Q e ) heat transfer of GSS, was always higher than the corresponding values of PSS throughout the day (Figures 5-7, and 8).…”

Section: Effect Of Solarsupporting

confidence: 60%

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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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“…Similar pattern has also been reported in previous works [6,30,31]. Figures 5 and 6 show the hourly water production for PSS and GSS, respectively.…”

Section: Effect Of Solarsupporting

confidence: 71%

Section: Effect Of Solarsupporting

confidence: 60%

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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“…Bassam A/K Abu-Hijleh et al [4] result shows increase in production by 20%. Yousef and Mousa Abu-Arabi [5] results also show that, the use of the film-cooling increases the still efficiency up to 20%. Lawrence et al (1989) had carried out research work on varying mass flow rate of water of upper side of glass cover to see its effect on distillate output and efficiency of solar still.…”

Section: Introductionmentioning

confidence: 55%

“…Wind velocity is also having its effect on the temperature of the glass. At higher wind velocity, due to higher convection heat transfer from the glass to atmosphere the productivity of the still is increasing (Yousef et al, 2004 and El-Sebaii [6] Tiwari and Rao [7] theoretically analyzed the effect of water flowing over the glass cover in a single basin still. The result shows the productivity is increased with flowing water over the glass cover.…”

Section: Introductionmentioning

confidence: 99%

Investigation and Performance Analysis of Evacuated Tubes Coupled Double Basin Solar Still With Fins

2017

IJAERD

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Modelling and performance analysis of a regenerative solar desalination unit

Cited by 226 publications

References 8 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

Investigation and Performance Analysis of Evacuated Tubes Coupled Double Basin Solar Still With Fins

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