Author
A.S. Abdullah
Other affiliations: Tanta University
Bio: A.S. Abdullah is an academic researcher from Salman bin Abdulaziz University. The author has contributed to research in topics: Solar still & Desalination. The author has an hindex of 9, co-authored 25 publications receiving 205 citations. Previous affiliations of A.S. Abdullah include Tanta University.
Papers
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TL;DR: In this paper, the status of different solar stills integrated with different condensers arrangements is discussed, and different designs were tested by researchers to improve the productivity of solar still, and the solar still integrated with external or internal condenser is deemed to be effective and efficient design.
Abstract: Access to potable water to the people is narrowing down day after day all over the world. Most of the human diseases are caused by polluted or non-purified water resources. Water purification without affecting the ecosystem is the necessity of the hour. Solar distillation is one of the water purification techniques producing ultrapure distilled water. Solar still distillation systems offer sustainable tools for freshwater production. Numerous environmental and operational parameters attribute to optimize the still design. Different designs were tested by researchers to improve the productivity of solar still. In their experimentations, the solar still integrated with external or internal condenser is deemed to be effective and efficient design. In this detailed survey, we are seeking to introduce, explain and discuss the status of different solar stills integrated with different condensers arrangements.
83 citations
TL;DR: In this article, the performance of tilted wick solar stills including new absorber configurations have been investigated, and the results showed that the increase in the daily yields when compared with CSS are 75 %, 93 % and 100 % for FWSS, BWSS, and CWSS, respectively.
77 citations
TL;DR: In this article, a new working mechanism of the wick in the pyramid solar distiller was proposed, where the jute wick with wick cords dangled from the basin cracks were used to withdraw the basin water and keep the surface wet all the time.
73 citations
TL;DR: In this article, the authors proposed a new modification in the design of the pyramid solar still to enlarge the exposure area and decrease the depth of the water film as possible, and four rotating cylinders were incorporated into the basin of pyramid distiller.
68 citations
TL;DR: In this article, the authors introduced a new concept of free water dripping on the basin water using cracks in the suspended trays of the trays solar still to break the boundary layers and surface tension of the basin basin water inside the solar distiller.
65 citations
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TL;DR: In this article, a review of various methods of glass cover cooling used to enhance the performance of the solar stills is presented, where cooling of glass covers is found to achieve a reduction in glass cover temperature in the range of 6-20°C with an improvement in stills efficiency and productivity up to 15.5% and 20% maximum.
Abstract: The productivity of a solar still is influenced by the temperature difference between condensing and evaporating areas. Previous researches determined that increasing the difference between water–glass temperatures enhances the daily productivity of solar stills. To maintain this temperature difference high, fans, condensers, storing materials, reflectors, and the glass cover cooling were utilized. Continuous supply of air or water film over the glass cover leads to diminish the temperature of glass. Also, the cooling water film performs the important role of continuous self-cleaning of the glass cover. The presence of filth and dirt on the glass cover greatly diminishes the efficiency of still. Continuous cleaning of the glass cover keeps high levels of efficacy. In this regard, this paper aims to review the various methods of glass cover cooling used to enhance the performance of the solar stills. The cooling of glass covers is found to achieve a reduction in glass cover temperature in the range of 6–20 °C with an improvement in stills efficiency and productivity up to 15.5% and 20% maximum, respectively. It was concluded that for the tubular solar still with cooling air flow of glass cover, the daily productivity improved by approximately 32.8%, and improved by approximately 59% with cooling water flow more than the still without cooling.
140 citations
TL;DR: In this article, a review of the literature on the implementation of nanofluid technology in active and passive solar distillation systems is presented, and the progress made and the existing challenges are discussed, and some conclusions and suggestions are made for future research.
Abstract: In recent years, nanofluids have been widely used to improve the performance of various energy systems due to their favourable thermo-physical and optical characteristics. In particular, solar distillation, as an affordable and reliable technique to provide freshwater, has benefited from nanofluid technology. This article performs a review of the literature on the implementation of nanofluid technology in active and passive solar distillation systems. The progress made and the existing challenges are discussed, and some conclusions and suggestions are made for future research. The review indicates that the daily productivities of solar distillation systems enhance by using nanofluid and increasing the volume fraction of nanoparticles. However, long-term operational stability and life cycle assessment remain critical issues. These factors should be considered for future research in this field.
127 citations
TL;DR: In this paper, a Vertical Rotating Wick (VRW) was used to enhance the productivity of the conventional basin type solar still using a rotating black wick belt integrated against the still back-wall to act as an additional collector-evaporator area.
122 citations
TL;DR: In this paper, a rotating drum inside the basin still was nominated as drum distiller to increase the evaporative surface area and decrease the thickness of the saline water film, and an external condenser was incorporated with drum still.
120 citations
TL;DR: A broad survey for diverse solar stills with reflectors has been conducted in this paper, where reflectors, either external or internal, are a good and cheap modification to increase the solar irradiation directed to the basin liner or the water as well as the distillate efficiency of the still.
Abstract: In numerous respects, the solar still is a perfect wellspring of freshwater for both agriculture and drinking in remote areas or islands There are numerous sorts of solar stills; the least difficult and most demonstrated is the basin solar still (conventional solar still) Investigations demonstrated that the conventional still has constrained productivity Scientists have taken efforts to make diverse designs of solar stills to improve the productivity and deduced that solar stills integrated with reflectors are one of the most efficient and effective designs The reflectors, either external or internal, are a good and cheap modification to increase the solar irradiation directed to the basin liner or the water as well as the distillate efficiency of the still In this paper, a broad survey for diverse solar stills with reflectors has been conducted
103 citations