Solar powered foldable apparatus for extracting water from atmospheric air

Fathy, M. E.; Awad, M. M.; Zeidan, El-Shafei B.; Hamed, Ahmed M.

doi:10.1016/j.renene.2020.07.020

Cited by 36 publications

(10 citation statements)

References 21 publications

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“…From all papers discussed above, we can reveal that: Devices with various shapes have been constructed to capture water from atmospheric air, e.g. ; double-faced conical shaped (Talaat et al, 2018), Accordion shaped (Fathy et al, 2020), trapezoidal shaped (William et al, 2015), pyramid shaped (Kabeel, 2007), and box shaped (Gad et al, 2001). The pyramid shaped and trapezoidal shaped devices showed higher productivity than other devices, because these methods boost bed surface area inside the collector, they improve absorption and evaporation surfaces while also allowing condensation to occur on all four sides.…”

Section: Resultsmentioning

confidence: 99%

“…Mathematical model has been prepared to simulate the process and the cost analysis has been used to assess the apparatus' economic cost of water production. The findings revealed that the volume of produced water can approach 750 g/day, with a cost of roughly 0.086 $/Kg (Fathy et al, 2020).…”

Section: Figure 7 Schematic Diagram Of the Apparatusmentioning

confidence: 99%

“…Desiccants can be utilized for capturing moisture from the atmosphere and then regenerate it. (Fathy, Awad, Zeidan, & Hamed, 2020).…”

Section: Introductionmentioning

confidence: 99%

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A Literature Review on Extraction of Potable Water from Atmospheric Air Using Solar Stills: Recent Developments

Danışmaz¹,

ALHURMUZİ²

2022

European Journal of Science and Technology

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Drinking water and utility water are indispensable elements in meeting many vital needs, especially drinking, cooking and cleaning. Unconscious agricultural irrigation, pollution, and population growth cause water scarcity that humanity must cope with. As a result of global warming and climate change, especially the amount of potable water is decreasing, making it difficult to access clean water resources. The occupancy of drinking water sources decreases in high temperature seasons and some of them even disappear. This situation has made it necessary to search for alternative methods to obtain drinking water. One of these methods is to obtain potable water from atmospheric air containing high amounts of water. With the widespread use of this method, the scarcity of drinking water can be alleviated to a certain extent. In this study, the processes of condensing the water in the atmospheric air by using solar energy, which is a renewable energy source, and thus obtaining potable water are discussed. Efforts to increase the efficiency of obtaining potable water by using various absorbents and by various systemic solar still designs have yielded positive results. As a result of this literature review, the limits of the studies and their regional effectiveness were evaluated together. The effect of temperature, velocity, humidity of the atmospheric air and the amount of solar radiation on the process were evaluated. It has been concluded that certain desiccant materials with good water absorbers such as calcium chloride and silica gel can be used effectively in the processes of obtaining potable water from atmospheric air by developing correct designs. It has been demonstrated that high atmospheric air temperature, which is an important cause of water scarcity, can be converted from disadvantage to advantage by utilizing solar energy.

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Section: Resultsmentioning

confidence: 99%

Section: Figure 7 Schematic Diagram Of the Apparatusmentioning

confidence: 99%

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A Literature Review on Extraction of Potable Water from Atmospheric Air Using Solar Stills: Recent Developments

Danışmaz¹,

ALHURMUZİ²

2022

European Journal of Science and Technology

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“…A foldable solar-powered system was introduced in Mansoura city of Egypt. 95 The system contained a black cloth soaked in a CaCl 2 solution absorber and a polyvinyl chloride (PVC) cover for the sun rays to transmit energy. At night, the apparatus was unfolded and attached to a telescopic stick.…”

Section: Liquid Adsorbentsmentioning

confidence: 99%

“…100 Similarly, a device was presented in the study 112 with flat and corrugated plates of composite sorbent ACF-LiCl and proved that at different conditions of CaCl 2 + sand, 50,88,94,96 and CaCl 2 + cloth. [49][50][51]90,91,93,95,101,103 Figure 9. Comparison of water production capacity of various LiCl sorbents.…”

Section: Composite Adsorbentsmentioning

confidence: 99%

An overview of solid and liquid materials for adsorption-based atmospheric water harvesting

Wasti

Sultan

Aleem

et al. 2022

Advances in Mechanical Engineering

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Thermally driven adsorption-based atmospheric water harvesting (AWH) is becoming an emerging technology to provide potable water. In this regard, various adsorbent materials including solid (MOFs, silica-gels, and zeolites), liquid (CaCl2 and LiCl), and composite adsorbents are explored in the literature. This study reviews recent advancements in adsorbent materials based on their water production capacity at different conditions that is air temperature and relative humidity (RH). The MOF of type MIL-101(Cr) shows water production capacity of 3.10 L/m2/day at RH ranging from 10% to 40%. Similarly, Zr-MOF-808 possesses water production capacity of 8.60 L/m2/day at RH more than 50%. Among the studied silica-gels, mesoporous silica-gel shows highest water production capacity that is 1.30 L/m2/day at RH ranging from 10% to 40%. The zeolite yielded water production capacity of 0.94 L/m2/day at RH ranging from 10% to 40%. On the other hand, liquid adsorbents like CaCl2 + cloth, K-LiCl showed water production capacity of 3.02 L/m2/day, and 2.9 g/g/day, respectively at RH of about 70%. Composite adsorbent modified with binary salts and functionalized carbon nanotubes resulted water production capacity of 5.60 g/g at RH of about 35%. The study will be useful to identify the energy-efficient adsorbent for the development of sustainable AWH device.

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Experimental comparison of solar‐powered adsorption‐based atmospheric water harvesting using air‐to‐air & water‐to‐air heat exchanger for condensation

Agrawal,

Kumar

2024

Env Prog and Sustain Energy

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Adsorption‐focused technologies for atmospheric water harvesting is of great importance. Most of the available systems in the literature use glass as a condenser, which gets heated up. This restricts vapor condensation to harvest less water and hampers the system's scalability. The effectiveness of the proposed solar atmospheric water harvesting system, which uses an air‐to‐air fin‐tube heat exchanger to condense the vapors, is experimentally evaluated in this work. In order to assess the system's effectiveness using a water‐to‐air fin‐tube heat exchanger, a comparison study is also carried out. The experimental setup consists of evacuated tube solar air heater having 8.46 m2 area and 15 kg silica gel adsorbent. The performance metrics for comparison include adsorption & regeneration rate, thermal, overall and exergy efficiency, along with economic analyses. The system harvests 1890 mL/day of water using air‐to‐air heat exchanger at cost of 0.19 $/l, achieving thermal, overall & exergy efficiencies of 21.66%, 2.24%, and 6.51%, respectively. On the other hand, the water‐to‐air heat exchanger based system harvests maximum of 2680 mL/day of water at a cost of 0.14 $/l, achieving thermal, overall & exergy efficiencies of 25.65%, 3.34%, and 9.13%, respectively. Moreover, the produced water is confirmed to be safe for consumption.

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Solar powered foldable apparatus for extracting water from atmospheric air

Cited by 36 publications

References 21 publications

A Literature Review on Extraction of Potable Water from Atmospheric Air Using Solar Stills: Recent Developments

A Literature Review on Extraction of Potable Water from Atmospheric Air Using Solar Stills: Recent Developments

An overview of solid and liquid materials for adsorption-based atmospheric water harvesting

Experimental comparison of solar‐powered adsorption‐based atmospheric water harvesting using air‐to‐air & water‐to‐air heat exchanger for condensation

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