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Performance comparisons of honeycomb-type adsorbent beds (wheels) for air dehumidification with various desiccant wall materials

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  • Zhang, Li-Zhi
  • Fu, Huang-Xi
  • Yang, Qi-Rong
  • Xu, Jian-Chang

Abstract

This study aims at comparing the performance of honeycomb type adsorbent beds (or desiccant wheels) for air dehumidification with various solid desiccant wall materials, from a viewpoint of system operation. A mathematical model is proposed and validated to predict the cyclic behaviors of the cycling beds or wheels. The influences of regeneration air temperature, process air temperature, and humidity on the coefficient of performance (COP), specific dehumidification power (SDP) and dehumidification efficiency (εd) are predicted with various desiccant wall materials. Totally ten most commonly used desiccant materials are considered, with different adsorption and thermophysical properties. It is found that of the 10 materials, the silica gel 3A and silica gel RD perform better than other desiccants for air dehumidification under typical working conditions and driven by low grade waste heat. The results provide some insights and guidelines for the design and optimization of honeycomb type adsorption beds or desiccant wheels.

Suggested Citation

  • Zhang, Li-Zhi & Fu, Huang-Xi & Yang, Qi-Rong & Xu, Jian-Chang, 2014. "Performance comparisons of honeycomb-type adsorbent beds (wheels) for air dehumidification with various desiccant wall materials," Energy, Elsevier, vol. 65(C), pages 430-440.
  • Handle: RePEc:eee:energy:v:65:y:2014:i:c:p:430-440
    DOI: 10.1016/j.energy.2013.11.042
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    Cited by:

    1. Chen, Chih-Hao & Hsu, Chien-Yeh & Chen, Chih-Chieh & Chiang, Yuan-Ching & Chen, Sih-Li, 2016. "Silica gel/polymer composite desiccant wheel combined with heat pump for air-conditioning systems," Energy, Elsevier, vol. 94(C), pages 87-99.
    2. Liang, Jyun-De & Hsu, Chien-Yeh & Hung, Tai-Chih & Chiang, Yuan-Ching & Chen, Sih-Li, 2018. "Geometrical parameters analysis of improved circulating inclined fluidized beds for general HVAC duct systems," Applied Energy, Elsevier, vol. 230(C), pages 784-793.
    3. Fong, K.F. & Lee, C.K., 2018. "Impact of adsorbent characteristics on performance of solid desiccant wheel," Energy, Elsevier, vol. 144(C), pages 1003-1012.
    4. Cui, Yuanlong & Zhu, Jie & Zoras, Stamatis & Liu, Lin, 2021. "Review of the recent advances in dew point evaporative cooling technology: 3E (energy, economic and environmental) assessments," Renewable and Sustainable Energy Reviews, Elsevier, vol. 148(C).
    5. Nóbrega, Carlos E.L., 2014. "A parametric analysis of periodic and coupled heat and mass diffusion in desiccant wheels," Energy, Elsevier, vol. 76(C), pages 942-948.
    6. Ruivo, Celestino R. & Figueiredo, António R. & Costa, José J., 2014. "Correlations for the mass transfer coefficient in desiccant matrices when using linear driving force and pseudo-gas-side-controlled models," Energy, Elsevier, vol. 75(C), pages 613-623.
    7. Husham Abdulmalek, Shaymaa & Khalaji Assadi, Morteza & Al-Kayiem, Hussain H. & Gitan, Ali Ahmed, 2018. "A comparative analysis on the uniformity enhancement methods of solar thermal drying," Energy, Elsevier, vol. 148(C), pages 1103-1115.
    8. Shamim, Jubair A. & Hsu, Wei-Lun & Paul, Soumyadeep & Yu, Lili & Daiguji, Hirofumi, 2021. "A review of solid desiccant dehumidifiers: Current status and near-term development goals in the context of net zero energy buildings," Renewable and Sustainable Energy Reviews, Elsevier, vol. 137(C).
    9. Fu, Huang-Xi & Zhang, Li-Zhi & Xu, Jian-Chang & Cai, Rong-Rong, 2016. "A dual-scale analysis of a desiccant wheel with a novel organic–inorganic hybrid adsorbent for energy recovery," Applied Energy, Elsevier, vol. 163(C), pages 167-179.
    10. Wu, X.N. & Ge, T.S. & Dai, Y.J. & Wang, R.Z., 2018. "Review on substrate of solid desiccant dehumidification system," Renewable and Sustainable Energy Reviews, Elsevier, vol. 82(P3), pages 3236-3249.
    11. Liu, Hongdou & Yang, Hongquan & Qi, Ronghui, 2020. "A review of electrically driven dehumidification technology for air-conditioning systems," Applied Energy, Elsevier, vol. 279(C).
    12. Sheng, Ying & Zhang, Yufeng & Zhang, Ge, 2015. "Simulation and energy saving analysis of high temperature heat pump coupling to desiccant wheel air conditioning system," Energy, Elsevier, vol. 83(C), pages 583-596.
    13. Ruivo, Celestino R. & Figueiredo, António R. & Costa, José J., 2014. "Comparative assessment of the linear driving force and pseudo-gas-side-controlled models for the prediction of mass transfer in desiccant matrices," Energy, Elsevier, vol. 75(C), pages 603-612.

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