Effect of inclination of the external reflector of simple solar still in winter: An experimental investigation for different cover angles

Khalifa, Abdul Jabbar N.; Ibrahim, Hussein A.

doi:10.1016/j.desal.2010.07.016

Cited by 38 publications

(9 citation statements)

References 6 publications

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“…Recently, many studies on the effect of flat plate external reflectors on basin-type stills have been reported [24][25][26][27][28][29][30][31][32][33][34][35][36][37], although few reports had been presented before the year 2000 [38][39][40]. The results showed that an external reflector can increase the solar radiation absorbed on the basin liner as well as the distillate productivity of the still if the reflector angle is set properly.…”

Section: Introductionmentioning

confidence: 90%

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Tanaka

2013

Advances in Mechanical Engineering

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The effect of a flat plate bottom reflector on a vertical multiple-effect diffusion solar still coupled with a basin-type still is analyzed theoretically at 30 ∘ N latitude. The still has a right-angled triangular cross-section consisting of a horizontal basin liner, a sloping double glass cover, and the vertical multiple-effect diffusion still (multiple-effect section) at the vertical rear wall. A geometrical model was constructed to calculate the amount of solar radiation reflected by the reflector and absorbed on both the basin liner and the first partition of the multiple-effect section. The reflected radiation from the reflector can be a thermal input to the multipleeffect section both in cases where the reflected radiation is absorbed on the basin liner and on the first partition. It is predicted that the overall daily productivity of the still can be increased about 16%, 13%, and 29% on the spring and autumn equinoxes, the winter solstice, and the summer solstice, respectively, by adding the external reflector and setting the reflector inclination to the proper angle according to seasons.

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Section: Introductionmentioning

confidence: 90%

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Tanaka

2013

Advances in Mechanical Engineering

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“…Solar distillation depends on the natural phenomenon where the water is heated, evaporated, rises to the top, and the steam condensate on a cooler surface . A theoretical study conducted to demonstrate the effect of two different types of inverter on the production of solar distillation with evaporating vials showing that the output of the flat reflector distillation is increased from 27% (−15) compared with the vertical . The effect of internal and external inverters on the performance of solar distillers resulted in increasing the productivity of approximately 34.8% for the same time and operational conditions compared with the simple distiller .…”

Section: Introductionmentioning

confidence: 99%

Performance investigation of a solar water distiller integrated with a parabolic collector using fuzzy technique

Doori

Ahmed

2019

Heat Trans. Asian Res.

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A recent study of the design of solar distillation with solar radiation concentration was carried out by an independent device. Transformer oil was used as a fluid to transfer heat to the distilled basin. The design and operational variables are essential, such as distiller dimensions, concentration ratio, pressure, and temperature. A mathematical model was proposed to simulate the system for 2 July 2018 from 10 AM to 4 PM in the climatic conditions of the city of Kirkuk, Iraq. Fuzzy logic (FL) was used to select the affected parameters: water temperature (T w ), water pressure (P w ), glass temperature (T g ), and vapor pressure (P g ) which have a separated membership function that control the linguistic variables. The results showed that the best performance of the distiller is at T w = 100°C, P g = 10 000 Pa, T g = 20°C, and P w = 20 000 Pa, and concentration ratio of 30. This study used FL to analyze solar distiller performance and identify optimum temperature, pressure, and concentration ratio on the productivity of solar distiller. K E Y W O R D Sconcentric solar collector, fuzzy logic control, solar distiller

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“…Tanaka [6] conducted a research on solar still using reflector placed at the bottom of flat plate collector. The amount of fresh water produced is increase throughout the year using flat plate base reflector.Khalifa and Ibrahim [7] reported the results of experimental investigations on basin productivity, solar still type with internal and external reflectors tilted at an angle of 0º (vertical), 10º, 20º and 30º. Daily productivity is found to be greater for solar still with larger closing angle.…”

Section: Introductionmentioning

confidence: 99%

Performance Experimental Study of Solar Still With Reflector To Produce Fresh Water and Salt

et al. 2018

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This paper presents a study of experimental performance of solar still using reflector to produce fresh and salt water in the climate of Padang city, Indonesia. The solar collector is equipped with a reflector placed on the top of the cover with slope of 30º. Test results show that using reflector can increase temperature in the basin. Freshwater productivity also increases and speeds up time in producing salt. Average daily freshwater productivity increased by 16.8% during the testing period by adding reflector compared to solar still without reflector

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Effect of inclination of the external reflector of simple solar still in winter: An experimental investigation for different cover angles

Cited by 38 publications

References 6 publications

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Theoretical Analysis of the Effect of a Bottom Reflector on a Vertical Multiple-Effect Diffusion Solar Still Coupled with a Basin-Type Still

Performance investigation of a solar water distiller integrated with a parabolic collector using fuzzy technique

Performance Experimental Study of Solar Still With Reflector To Produce Fresh Water and Salt

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