Modeling and performance analysis of a solar desalination unit with double-glass cover cooling

Abu-Arabi, Mousa; Zurigat, Yousef H.; Al-Hinai, Hilal; Al-Hiddabi, S.A.

doi:10.1016/s0011-9164(02)00238-2

Cited by 127 publications

(37 citation statements)

References 14 publications

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“…Several approaches have been used to cool the glass cover and/or utilize the latent heat of condensation released into the glass cover, cooling by flowing water film on top of the glass cover [1][2][3][4][5][6], or flowing water through a double-glass cover [6][7][8][9]. In the second approach, if there is spacing between the water flowing and the upper glass cover, evaporation from this water occurs utilizing the latent heat of condensation on the lower glass cover, thus producing more fresh water.…”

Section: Introductionmentioning

confidence: 99%

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Year-round comparative study of three types of solar desalination units

Abu-Arabi¹,

Zurigat

2005

Desalination

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Section: Introductionmentioning

confidence: 99%

“…The types of stills used were regenerative, conventional, and double-glass-cover cooling. These stills were mathematically modeled in previous studies by the authors [7,12]. A parametric study was also performed to determine the effect of system variables on the performance of these stills.…”

Section: Introductionmentioning

confidence: 99%

Year-round comparative study of three types of solar desalination units

Abu-Arabi¹,

Zurigat

2005

Desalination

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“…The water takes away the heat from the surface by gaining the heat and water is restored in the basin by regenerating the heat. The results of Abu-Hijleh and Mousa (1997), Abu-Arabi et al (2002) and Abu-Hijleh (1996) show that the flow of water over the cover increases the production rate by 20%. The utilization of flowing heat energy from the cover increases the productivity and produces an additional effect.…”

Section: Inverted Absorber Double and Triple Basin Solar Stillmentioning

confidence: 96%

A Review of Different Solar Still for Augmenting Fresh Water Yield

Sathyamurt¹,

Samuel²,

Nagarajan³

et al. 2015

J. of Environmental Science and Technology

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Due to the greater growth of population and industrial developments especially from the early 20th century, people living in remote villages suffer with shortage of drinking water. People living in urban and rural areas depend on surface and ground water sources, where these sources are majorly polluted by industrial waste. The use of reverse osmosis technique and other conventional technique appears to be a costlier method and requires a very large land mass. An economical method of converting the saline water to portable water is by using solar energy. Solar still desalination is one method of converting saline water into potable water by evaporation and condensation. Many researchers carried out extensive studies on the solar still desalination technique and this paper communicates a detailed review about the existing desalination technique by solar energy.Key words: Solar still, economic, water source, energy, developments INTRODUCTIONEarth is almost covered with water of which 97% salt water, 2% trapped in the form of glaciers and polar ice caps and only 1% of water for drinking purpose for our survival. Plants, animals and human being need water to avoid dehydration, since dehydration kills faster than starvation. Consumption of unhygienic water cause health problems and even death and for a small scale production of fresh water in urban and rural areas solar desalination is the best method (Kumar et al., 2015;Arunkumar et al., 2015). As ground and surface water sources are depleting by continuous usage the need of drinking water is more. Figure 1 shows the major water sources of the world.There is a great need of fresh water for humans, as they are the important phenomenon in dayto-day life. Due to urbanization, industrialization and increase in population growth the need of drinking water is higher. The possible ways of getting pure water is from rivers, lakes, wells, rains etc, as these kinds must be purified consuming. The purification of water involves the removal of dissolved or microbes which can easily spread water borne diseases. The insoluble substances are removed by sand filtration and the microbes are killed through chlorination and by boiling. Solar desalination does all the three function. The another method of conversion of backrish water into purified water for drinking purpose is using membrane or phase change process of desalination. Earlier these process uses boiler to generate power or heat to drive the membrane process to get fresh water. In the current context, solar energy is used to drive these techniques using solar photo

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“…In this case, the daily efficiencies, for one liter of distillate, for the cascade and conventional solar distillers were found to be approximately 53 and 33.5%, respectively. H. Al-Hinai September 2002 [3] Developed a mathematical model to predict the productivity of a simple solar still, under different climatic conditions in Oman. They found that the optimum design is obtained for a glazing with an inclination angle of 23°, and an insulation thickness equal to 0.1 m. With such a design, the distiller can produce 4.15 kg/m2 of water per day.…”

Section: Introductionmentioning

confidence: 99%

Immersed fins influence on the double slope solar still production in south Algeria climatic condition

Moungar¹,

Ahmed²,

Sahli³

et al. 2017

IJHT

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This work presents a theoretical and experimental study of a double slope still with fins immersed in a basin. The influence of the speed of wind, distance between fins, height of fins, number of fins and thickness of the water layer in the basin, on the production of the still, is investigated. From the results obtained, it is noted that for a wind speed greater than 3.5 m/s, a decrease in the productivity is caused by the cooling of the outer walls, and this induces some heat losses, especially at the front and rear walls of the still. The distance between fins has no significant effect on the still productivity. Moreover, increasing the height of fins, from 2 to 5 cm, causes a raise in the productivity; however, when the height changes from 6 to 8 cm, the distillate production goes down. A larger number of fins lead to a rise in the amount of distilled water produced. Therefore, one should use the maximum number of fins, while taking into consideration the feasibility of the assembly. Increasing the mass of water in the basin makes the productivity to go down. The results obtained on June 11, 2016, show that the productivity of the proposed system was about 15 to 27 % higher than that of a simple one, under the following conditions, i.e. mw = 42.61 kg, h1 = 3.6 cm, Vv = 3.5 m/s, lw = 5 cm and Nfins = 12.

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Modeling and performance analysis of a solar desalination unit with double-glass cover cooling

Cited by 127 publications

References 14 publications

Year-round comparative study of three types of solar desalination units

Year-round comparative study of three types of solar desalination units

A Review of Different Solar Still for Augmenting Fresh Water Yield

Immersed fins influence on the double slope solar still production in south Algeria climatic condition

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