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Optimal Design of Air Treatment for an Adsorption Water-Harvesting System

Author

Listed:
  • Shiyu Zhou

    (School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, China)

  • Xiaoqian Wang

    (School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, China)

  • Hanbing Jia

    (School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, China)

  • Jiying Liu

    (School of Thermal Engineering, Shandong Jianzhu University, Jinan 250101, China)

Abstract

In some areas where access to water is difficult, such as arid regions, it is a feasible measure to acquire water from the air. In this context, a system for water harvesting from the air was designed and manufactured. In order to find the optimal operation parameters of the system, the humidity–enthalpy diagram and the dehumidifier computation software (V2.0, Win7) were adopted for the optimization work. The air treatment process of the system was analyzed and calculated by using the professional software provided by the dehumidifier company. Operation modes of ‘powerful mode’ and ‘economic mode’ were defined in the computation work, which are represented by the water production amount and efficiency (water production per power consumption), respectively. According to computation analysis, the relationships between the main performance indicators and the system design/operation parameters were obtained. By considering the heating power limitation of the system, the wheel dehumidifier rotation speed of 8 rph (revolutions per hour), zonal area ratio of A p /A r = 2, and the optimal airflow ratios in different relative humidity (RH) environments, together with the outlet air parameter settings of the surface cooler, were finally defined.

Suggested Citation

  • Shiyu Zhou & Xiaoqian Wang & Hanbing Jia & Jiying Liu, 2024. "Optimal Design of Air Treatment for an Adsorption Water-Harvesting System," Sustainability, MDPI, vol. 16(14), pages 1-19, July.
    • Handle: RePEc:gam:jsusta:v:16:y:2024:i:14:p:6193-:d:1438916
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    References listed on IDEAS

    as
    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. Jackson Lord & Ashley Thomas & Neil Treat & Matthew Forkin & Robert Bain & Pierre Dulac & Cyrus H. Behroozi & Tilek Mamutov & Jillia Fongheiser & Nicole Kobilansky & Shane Washburn & Claudia Truesdell, 2021. "Global potential for harvesting drinking water from air using solar energy," Nature, Nature, vol. 598(7882), pages 611-617, October.
    3. Wang, J.Y. & Wang, R.Z. & Wang, L.W. & Liu, J.Y., 2017. "A high efficient semi-open system for fresh water production from atmosphere," Energy, Elsevier, vol. 138(C), pages 542-551.
    4. Wang, J.Y. & Wang, R.Z. & Tu, Y.D. & Wang, L.W., 2018. "Universal scalable sorption-based atmosphere water harvesting," Energy, Elsevier, vol. 165(PA), pages 387-395.
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