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Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier

Received: 22 July 2022     Accepted: 25 August 2022     Published: 21 September 2022
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Abstract

Background: the use of air humidification in order to produce pure water from saline or waste water take more and more importance since it allows to add value to non-pure water. In this case, the aim of this study was to simulate of air humidification. Material Methods: The experimental device used, for the humidification of the air through its contact with water, is a vertical column filled with packing. It works on the principle of an air lift pump. Modeling equations for heat and material transfer between fluids have been established. Results: Established models are verified by experimental results. The humidification of the air is proportional to the operating parameters such as: the initial level of water in the column, the air flow, the temperature of the liquid and the height of contact between fluids. The air temperature and humidity profiles increase as a function of the packing height. Conclusion: Air humidification is effective if heat and mass transfers between fluids are high. The temperature of the liquid water has a greater effect than those of the other operating parameters on the shape of the air temperature and humidity profiles as a function of the height of the column.

Published in American Journal of Chemical Engineering (Volume 10, Issue 5)
DOI 10.11648/j.ajche.20221005.11
Page(s) 89-102
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Humidification-Dehumidification, Airlift Pump, Temperature Profile, Humidity Profile, Column Height, Efficiency

References
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[4] Xinyi Zhou. On the dimensional analysis for solar desalination using humidification-dehumidification processes. Energy Conversion and Management 244 (7-8): 114595. DOI: 10.1016/j.enconman.2021.114595.
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[6] Xin Huang, Tingfen Ke, Yang Li, Xiang Ling. Experimental investigation and optimization of total energy consumption in humidification-dehumidification system. Energy Procedia 158: 3488-3493. February 2019. DOI: 10.1016/j.egypro.2019.01.922.
[7] T. M. Khass, R. H Mohammed, N. A. A. Qasem and S. M. Zubair. Different configurations of humidification-dehumidification desalination systems: Thermal and economic assessment. Energy Conversion and Management 258: 115470. DOI: 10.1016/j.enconman.2022.115470.
[8] A. Zargar, A. Kodkani, A. Peris. Numerical analysis of a counter-flow wet cooling tower and its plume. International Journal of Thermofluids 14 (4): 100139. DOI: 10.1016/j.ijft.2022.100139.
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[12] Mohamed ASA, Ahmed MS, Maghrabie HM, Shahdy AG. Desalination process using humidification– dehumidification technique: A detailed review. Int J Energy Res. 2020; 1–52. https://doi.org/10.1002/ er.6111.
[13] Masoud Khorasani, Morteza Zivdar, Farshad Fashchi Tabrizi, Zahra Askari, Kaveh Ostad-Ali-Askari. Measurement of Gas-Phase Mass Transfer Coefficients in a Humidification Column through Random Packing. American Journal of Engineering and Applied Sciences 12 (3): 352-358. DOI: 10.3844/ajeassp.2019.352.358.
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  • APA Style

    Adel Oueslati. (2022). Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier. American Journal of Chemical Engineering, 10(5), 89-102. https://doi.org/10.11648/j.ajche.20221005.11

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    ACS Style

    Adel Oueslati. Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier. Am. J. Chem. Eng. 2022, 10(5), 89-102. doi: 10.11648/j.ajche.20221005.11

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    AMA Style

    Adel Oueslati. Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier. Am J Chem Eng. 2022;10(5):89-102. doi: 10.11648/j.ajche.20221005.11

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  • @article{10.11648/j.ajche.20221005.11,
      author = {Adel Oueslati},
      title = {Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier},
      journal = {American Journal of Chemical Engineering},
      volume = {10},
      number = {5},
      pages = {89-102},
      doi = {10.11648/j.ajche.20221005.11},
      url = {https://doi.org/10.11648/j.ajche.20221005.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajche.20221005.11},
      abstract = {Background: the use of air humidification in order to produce pure water from saline or waste water take more and more importance since it allows to add value to non-pure water. In this case, the aim of this study was to simulate of air humidification. Material Methods: The experimental device used, for the humidification of the air through its contact with water, is a vertical column filled with packing. It works on the principle of an air lift pump. Modeling equations for heat and material transfer between fluids have been established. Results: Established models are verified by experimental results. The humidification of the air is proportional to the operating parameters such as: the initial level of water in the column, the air flow, the temperature of the liquid and the height of contact between fluids. The air temperature and humidity profiles increase as a function of the packing height. Conclusion: Air humidification is effective if heat and mass transfers between fluids are high. The temperature of the liquid water has a greater effect than those of the other operating parameters on the shape of the air temperature and humidity profiles as a function of the height of the column.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Experimental and Modeling Investigation of Heat and Mass Transfers in an Airlift Packed Column Humidifier
    AU  - Adel Oueslati
    Y1  - 2022/09/21
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ajche.20221005.11
    DO  - 10.11648/j.ajche.20221005.11
    T2  - American Journal of Chemical Engineering
    JF  - American Journal of Chemical Engineering
    JO  - American Journal of Chemical Engineering
    SP  - 89
    EP  - 102
    PB  - Science Publishing Group
    SN  - 2330-8613
    UR  - https://doi.org/10.11648/j.ajche.20221005.11
    AB  - Background: the use of air humidification in order to produce pure water from saline or waste water take more and more importance since it allows to add value to non-pure water. In this case, the aim of this study was to simulate of air humidification. Material Methods: The experimental device used, for the humidification of the air through its contact with water, is a vertical column filled with packing. It works on the principle of an air lift pump. Modeling equations for heat and material transfer between fluids have been established. Results: Established models are verified by experimental results. The humidification of the air is proportional to the operating parameters such as: the initial level of water in the column, the air flow, the temperature of the liquid and the height of contact between fluids. The air temperature and humidity profiles increase as a function of the packing height. Conclusion: Air humidification is effective if heat and mass transfers between fluids are high. The temperature of the liquid water has a greater effect than those of the other operating parameters on the shape of the air temperature and humidity profiles as a function of the height of the column.
    VL  - 10
    IS  - 5
    ER  - 

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Author Information
  • Process Engineering Department, Higher Technological Studies Institute of Zaghouan, Mogren, Tunisia

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