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Liter-scale atmospheric water harvesting for dry climates driven by low temperature solar heat

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  • Gentile, Vincenzo
  • Bozlar, Michael
  • Meggers, Forrest
  • Simonetti, Marco

Abstract

This experimental study demonstrates a thermodynamic cycle based on isothermal regeneration to enhance the exploitation of sorbents and low temperature energy sources, such as solar energy, for atmospheric water harvesting in dry climates. An experimental setup based on silica gel has been designed to produced liquid water with low regeneration temperatures for dry climates with dew points in the range of 2 to 8 °C and ambient temperatures between 20 and 35 °C. Experimental results demonstrate daily water production from 1.5 to 3.3 L day−1 per square meter of solar field, with a maximum regeneration temperature of 57 °C, and ambient temperatures up to 35 °C. The thermal energy required to activate the cycle is between 1 and 3 kWh per liter of condensed water.

Suggested Citation

  • Gentile, Vincenzo & Bozlar, Michael & Meggers, Forrest & Simonetti, Marco, 2022. "Liter-scale atmospheric water harvesting for dry climates driven by low temperature solar heat," Energy, Elsevier, vol. 254(PB).
    • Handle: RePEc:eee:energy:v:254:y:2022:i:pb:s0360544222011987
    DOI: 10.1016/j.energy.2022.124295
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    References listed on IDEAS

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    1. Hyunho Kim & Sameer R. Rao & Eugene A. Kapustin & Lin Zhao & Sungwoo Yang & Omar M. Yaghi & Evelyn N. Wang, 2018. "Adsorption-based atmospheric water harvesting device for arid climates," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    2. A. Hoekstra & A. Chapagain, 2007. "Water footprints of nations: Water use by people as a function of their consumption pattern," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 21(1), pages 35-48, January.
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    Cited by:

    1. Tashtoush, Bourhan & Alshoubaki, Anas, 2023. "Atmospheric water harvesting: A review of techniques, performance, renewable energy solutions, and feasibility," Energy, Elsevier, vol. 280(C).
    2. Zhang, Qiaoxin & Tu, Rang & Liu, Mengdan, 2023. "Performance analyses and optimization studies of desiccant wheel assisted atmospheric water harvesting system under global ambient conditions," Energy, Elsevier, vol. 283(C).

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