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Evaluating the emerging adsorbents for water production potential and thermodynamic limits of adsorption-based atmospheric water harvesting systems

  • Muhammad Aleem
  • , Muhammad Sultan*
  • , Muhammad Farooq
  • , Fahid Riaz
  • , Sobhy M. Yakout
  • , Md Shamim Ahamed
  • , Hafiz M. Asfahan
  • , Uzair Sajjad
  • , Muhammad Imran
  • , Muhammad W. Shahzad
  • *Corresponding author for this work
  • Bahauddin Zakariya University
  • University of Engineering and Technology Lahore
  • Abu Dhabi University
  • College of Sciences
  • University of California Davis
  • National Taipei University of Technology
  • University of Northumbria Newcastle

Research output: Contribution to journalArticlepeer-review

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Abstract

In the context of global water scarcity, adsorption-based atmospheric water harvesting (AWH) is an emerging technology for providing potable water at anytime/anywhere. In this regard, the study evaluates silica-gel, zeolite, ionogel, polymer, membrane, and metal-organic framework based ten kinds of emerging adsorbents for the AWH systems. A thermodynamic modeling framework comprising of adsorption equilibrium models and governing steady-state equations is performed. Performance of AWH systems is always judged on water production potential (WPP), energy consumption (EC) whereas thermodynamic correctness can be measured by first (ηI) and second law (ηII) efficiencies. Thereby, the adsorbents are evaluated from perspectives of WPP, EC, ηI and ηII. As per results, ionogel based adsorbent enables maximum WPP ranging up to 1.55 kg/kg/cycle, EC of 4214.96 kJ/kgw/cycle, ηI of 0.54, and ηII of 0.21. Whereas MIL-101(Cr) observe WPP ranging up to 0.87 kg/kg/cycle, EC of 4499.84 kJ/kgw/cycle, ηI of 0.50, and ηII of 0.19. Parametric analyses results show that ηI of ionogel and MIL-101(Cr) can be increased up to 0.65 and 0.69 while ηII up to 0.23 and 0.25, respectively. Furthermore, ηI and ηII of dual-stage system can improve by 33% as compared to single-stage that can improve by 68-74% as compared to vapor compression system.

Original languageEnglish
Article number106863
Number of pages32
JournalInternational Communications in Heat and Mass Transfer
Volume145
Early online date7 Jun 2023
DOIs
Publication statusPublished - 30 Jun 2023

Bibliographical note

Copyright © 2023, Elsevier. This accepted manuscript version is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International https://creativecommons.org/licenses/by-nc-nd/4.0/

Funding

The authors extend their appreciation to the Deputyship for Research and Innovation, “Ministry of Education” in Saudi Arabia for funding this research work through the project no. ( IFKSUOR3–146–1 ). The authors extend their appreciation to the Deputyship for Research and Innovation, “Ministry of Education” in Saudi Arabia for funding this research work through the project no. ( IFKSUOR3–146–1 ). Authors acknowledge financial support from Abu Dhabi University's Office of Research and Sponsored Programs. This research work has been carried out in the Department of Agricultural Engineering, Bahauddin Zakariya University, Multan-Pakistan with the support of BZU-ORIC Grant 2020-21.

FundersFunder number
BZU-ORIC2020-21
Ministry of Education – Kingdom of Saudi ArabiIFKSUOR3–146–1

    UN SDGs

    This output contributes to the following UN Sustainable Development Goals (SDGs)

    1. SDG 6 - Clean Water and Sanitation
      SDG 6 Clean Water and Sanitation
    2. SDG 7 - Affordable and Clean Energy
      SDG 7 Affordable and Clean Energy

    Keywords

    • Emerging adsorbents
    • Energy consumption
    • First law efficiency
    • Second law efficiency
    • Thermodynamic modeling framework
    • Water production potential

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