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Investigation on novel desiccant wheel using wood pulp fiber paper with high coating ratio as matrix

Author

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  • Wu, X.N.
  • Ge, T.S.
  • Dai, Y.J.
  • Wang, R.Z.

Abstract

A kind of wood pulp fiber paper (WPFP) was proposed as candidate for the matrix of desiccant wheel. Silica gel was coated on WPFP by impregnation method and the corresponding coating ratio was obtained and analyzed. Then the thermal conductivity, pore structure and adsorption/desorption performances of WPFP coated with silica gel were tested and analyzed. The results indicated that the WPFP has high coating ratio for silica gel due to its hydrophilic characteristic. The thermal conductivity of WPFP coated with silica gel after the first coating increases obviously compared with raw WPFP and reaches to 0.1292 W/(m⋅K). In addition, the WPFP coated with silica gel after the first coating has high specific surface area and its maximal adsorption quantity for water vapor can be 0.240 g/g. Finally, the DCOP of the desiccant wheel using WPFP as matrix obtained by numerical simulation can be 1.75 under the given working condition that the temperature of regeneration air is set as 90 °C and the inlet condition of process air is set as 34.3 °C and 56.2% RH. It is indicated that the desiccant wheel using WPFP as matrix can meet the requirement of air dehumidification and save energy by 7.35% simultaneously.

Suggested Citation

  • Wu, X.N. & Ge, T.S. & Dai, Y.J. & Wang, R.Z., 2019. "Investigation on novel desiccant wheel using wood pulp fiber paper with high coating ratio as matrix," Energy, Elsevier, vol. 176(C), pages 493-504.
    • Handle: RePEc:eee:energy:v:176:y:2019:i:c:p:493-504
    DOI: 10.1016/j.energy.2019.04.006
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    References listed on IDEAS

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    3. 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.
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    Cited by:

    1. Sibghat Ullah & Muzaffar Ali, 2023. "Performance Assessment of Solar Desiccant Air Conditioning System under Multiple Controlled Climatic Zones of Pakistan," Energies, MDPI, vol. 16(19), pages 1-22, September.
    2. Elena Belyanovskaya & Miroslav Rimár & Roman D. Lytovchenko & Miroslav Variny & Kostyantyn M. Sukhyy & Oleksandr O. Yeromin & Mikhailo P. Sykhyy & Elena M. Prokopenko & Irina V. Sukha & Mikhailo V. Gu, 2020. "Performance of an Adsorptive Heat-Moisture Regenerator Based on Silica Gel–Sodium Sulphate," Sustainability, MDPI, vol. 12(14), pages 1-15, July.
    3. Feng, Y.H. & Dai, Y.J. & Wang, R.Z. & Ge, T.S., 2022. "Insights into desiccant-based internally-cooled dehumidification using porous sorbents: From a modeling viewpoint," Applied Energy, Elsevier, vol. 311(C).
    4. Brandani, Stefano & Mangano, Enzo, 2022. "Direct measurement of the mass transport coefficient of water in silica-gel using the zero length column technique," Energy, Elsevier, vol. 239(PA).

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