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Displacement ventilation with cooled liquid desiccant dehumidification membrane at ceiling; modeling and design charts

Author

Listed:
  • Hout, Mohamad
  • Ghaddar, Nesreen
  • Ghali, Kamel
  • Ismail, Nagham
  • Simonetti, Marco
  • Fracastoro, Gian Vincenzo
  • Virgone, Joseph
  • Zoughaib, Assaad

Abstract

A novel transport model is developed for a space conditioned by a cooled liquid desiccant dehumidification membrane ceiling (LDMC-C) and displacement ventilation DV in which the space is divided into three zones: an occupied cool with fresh air zone; an upper recirculation zone; and a ceiling adjacent boundary layer zone where the air is drawn at the exhaust grill. The adjacent air boundary layer at the ceiling membrane predicted the latent and sensible heat transfer to the desiccant solution. The boundary model was validated experimentally in a climatic chamber.

Suggested Citation

  • Hout, Mohamad & Ghaddar, Nesreen & Ghali, Kamel & Ismail, Nagham & Simonetti, Marco & Fracastoro, Gian Vincenzo & Virgone, Joseph & Zoughaib, Assaad, 2017. "Displacement ventilation with cooled liquid desiccant dehumidification membrane at ceiling; modeling and design charts," Energy, Elsevier, vol. 139(C), pages 1003-1015.
    • Handle: RePEc:eee:energy:v:139:y:2017:i:c:p:1003-1015
    DOI: 10.1016/j.energy.2017.08.046
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    References listed on IDEAS

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    Cited by:

    1. Chen, Wanhe & Yin, Yonggao & Zhao, Xingwang & Fan, Fangsu & Cao, Bowen & Ji, Qiang & Xu, Guoying, 2023. "Sepiolite based humidity-control coating specially for alleviate the condensation problem of radiant cooling panel," Energy, Elsevier, vol. 272(C).
    2. Liu, Xiaoli & Qu, Ming & Liu, Xiaobing & Wang, Lingshi, 2019. "Membrane-based liquid desiccant air dehumidification: A comprehensive review on materials, components, systems and performances," Renewable and Sustainable Energy Reviews, Elsevier, vol. 110(C), pages 444-466.
    3. Bobo Zhang & Qin Sun & Lin Su & Kaijun Dong & Weimin Luo & Haifeng Guan & Zhenhua Shao & Wei Wu, 2023. "Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof," Energies, MDPI, vol. 16(12), pages 1-14, June.
    4. Liang, Chao & Li, Xianting & Shao, Xiaoliang & Li, Baoming, 2020. "Direct relationship between the system cooling load and indoor heat gain in a non-uniform indoor environment," Energy, Elsevier, vol. 191(C).

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