Performance evaluation of a continuous flow inclined solar still desalination system

El-Agouz, S.A.; El-Samadony, Y.A.F.; Kabeel, A.E.

doi:10.1016/j.enconman.2015.05.069

Cited by 84 publications

(17 citation statements)

References 21 publications

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“…The present hemispherical solar still is further assessed by comparing its efficiency with those of the existing solar stills in the literature. The conventional solar still by [16] had an efficiency between 14.9 and 34% while modified solar stills such as tilted wick type [6]; hemispherical solar still [20]; continuous flow inclined solar still [21]; triangular solar still [22], etc., had maximum efficiency between 50-60% in the open literature. Under Nigerian meteorological conditions, single basin solar still tested at Makurdi [23] had an efficiency of 58%, double slope solar still tested in Lagos at 2cm depth [24] had an efficiency of 25.3%.…”

Section: Solar Still Efficiencymentioning

confidence: 99%

Influence of temperature difference (water-cover surface) on the performance of a compact hemispherical solar still

Adewole¹,

Arabambi²,

Asere³

2020

Nig. J. Tech.

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The study investigated the influence of temperature difference (ΔT) between evaporative and condensing surface temperature on water productivity of hemispherical solar still. The still was developed, tested and evaluated under the climatic conditions of Ile-Ife, Nigeria, to obtain an average distillate yield per hour per day for different combination of basin temperature, water temperature, transparent cover temperature, ambient temperature and solar intensity. Results indicated a decrease in the hourly water yield as (ΔT) increases. Regression analysis revealed that ΔT has no significant influence on the hourly water yield (P > 0.05). Maximum water productivity was obtained for a low condensing surface temperature and a high evaporative surface temperature. The study concluded that the improvement on water productivity of solar still can be achieved by enhancing the evaporative and condensing surface temperature. Methods for obtaining higher evaporating temperature should be sought in order to boost water productivity of solar stills. Keywords: Temperature difference, Evaporative surface, Condensing surface, Hourly water yield, Heat losses.

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Section: Solar Still Efficiencymentioning

confidence: 99%

Influence of temperature difference (water-cover surface) on the performance of a compact hemispherical solar still

Adewole¹,

Arabambi²,

Asere³

2020

Nig. J. Tech.

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“…The use of two different types of solar water distillation systems creates issues related to the regulation of the inlet water flow, which is quite complicated. In the paper [13], the author circulated the inclined SS's wastewater as inlet water using a pump, which resulted in the increased efficiency by 57.2 % compared to basin SS obtained by simulation. The utilization of wastewater as input water in the inclined SS in the paper [13] is an appropriate way to raise the temperature of the inlet water.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Increasing inlet water temperature using condensation heat to improve solar distillation efficiency

Sambada¹,

Soeparman²,

Wijayanti³

et al. 2020

EEJET

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Increasing the temperature of inlet water is one way to increase solar distillation efficiency. Heat recovery using double glazing is a more straightforward way to raise the temperature of inlet water. In previous studies, the incoming water temperature was raised using additional equipment such as a solar water heater collector or utilizing the heat of wastewater from another water distillation system. The earlier studies' technique caused solar water distillation to be complicated, and the manufacturing cost was expensive. Heat recovery is a process of utilizing heat condensation of water vapor to increase the inlet water temperature. In conventional solar distillation, condensing heat is not used and wasted into the environment. Double glass is two glasses arranged in parallel, one on the top of the other. The distance between the glasses is 2 mm. The bottom glass is a 1 m 2 distillation cover glass. Water flows between the bottom glass and the top glass before entering the distillation model. The inlet water receives heat condensation so that the temperature rises. The increase in temperature causes heat loss to decrease and leads to efficiency improvement. This study aims to reveal the effect of heat recovery using double glazing to improve solar distillation efficiency. The study was conducted with laboratory experiments and simulations. The thickness of the bottom and top glass and the top glass area influence the heat recovery process. This study used two variations of glass thickness, namely 3 mm and 5 mm. The area of the top glass was varied by 0.1, 0.5, 0.7, and 1.0 m 2. The maximum efficiency improvement compared to distillation without heat recovery obtained is 39.6 % with a glass thickness of 3 mm and 51.0 % with a glass thickness of 5 mm achieved in the variation of the top glass area of 0.1 m 2

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“…Also, high energy consumption and brine disposal problem is faced in RO process due to the limited recovery of water. These problems may be overcome by other membrane thermal process such as a membrane distillation (MD) [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Direct contact membrane water distillation assisted with solar energy

Elzahaby

Kabeel

Bassuoni

et al. 2016

Energy Conversion and Management

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Performance evaluation of a continuous flow inclined solar still desalination system

Cited by 84 publications

References 21 publications

Influence of temperature difference (water-cover surface) on the performance of a compact hemispherical solar still

Influence of temperature difference (water-cover surface) on the performance of a compact hemispherical solar still

Increasing inlet water temperature using condensation heat to improve solar distillation efficiency

Direct contact membrane water distillation assisted with solar energy

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