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Experiments in a solar simulator on solid desiccant regeneration and air dehumidification for air conditioning in a tropical humid climate

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  • Techajunta, S
  • Chirarattananon, S
  • Exell, R.H.B

Abstract

This paper presents an indoor and analytical study to evaluate the performance of a desiccant cooling system that uses silica gel as desiccant, electric light bulbs to simulate solar radiation, and forced flow of air through an IDC (integrated Desiccant/Collector). In the regeneration process, the rate at which water is removed from the desiccant increases with irradiation and decreases with air flowrate. In the air dehumidification process, the adsorption rate decreases with irradiation and increases slightly with flowrate. Comparisons between analytical calculations and experimental data show good agreement, and the calculations show that it should be possible to operate this system in tropical humid climates using the regeneration process in the day and the air dehumidification in the night time.

Suggested Citation

  • Techajunta, S & Chirarattananon, S & Exell, R.H.B, 1999. "Experiments in a solar simulator on solid desiccant regeneration and air dehumidification for air conditioning in a tropical humid climate," Renewable Energy, Elsevier, vol. 17(4), pages 549-568.
    • Handle: RePEc:eee:renene:v:17:y:1999:i:4:p:549-568
    DOI: 10.1016/S0960-1481(98)00776-9
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    Citations

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    Cited by:

    1. Chua, K.J. & Chou, S.K. & Islam, M.R., 2018. "On the experimental study of a hybrid dehumidifier comprising membrane and composite desiccants," Applied Energy, Elsevier, vol. 220(C), pages 934-943.
    2. Wansheng Yang & Wenhui Wang & Zezhi Ding & Zhangyuan Wang & Xudong Zhao & Song He, 2017. "Performance Study of a Novel Solar Solid Dehumidification/Regeneration Bed for Use in Buildings Air Conditioning Systems," Energies, MDPI, vol. 10(9), pages 1-14, September.
    3. Rambhad, Kishor S. & Walke, Pramod V. & Tidke, D.J., 2016. "Solid desiccant dehumidification and regeneration methods—A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 59(C), pages 73-83.
    4. Kabeel, A.E., 2009. "Adsorption–desorption operations of multilayer desiccant packed bed for dehumidification applications," Renewable Energy, Elsevier, vol. 34(1), pages 255-265.
    5. Amit Kumar & Avadhesh Yadav, 2017. "Experimental investigation of solar-powered desiccant cooling system by using composite desiccant “CaCl2/jute”," Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, Springer, vol. 19(4), pages 1279-1292, August.
    6. 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.
    7. Daou, K. & Wang, R.Z. & Xia, Z.Z., 2006. "Desiccant cooling air conditioning: a review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 10(2), pages 55-77, April.
    8. Pramuang, Surajitr & Exell, R.H.B., 2007. "The regeneration of silica gel desiccant by air from a solar heater with a compound parabolic concentrator," Renewable Energy, Elsevier, vol. 32(1), pages 173-182.
    9. Seungho Choi & Sangyoung Park & Junhee Hong & Jehyuk Won, 2023. "A Design and Validation of 400 W PV Emulator Using Simple Equivalent Circuit for PV Power System Test," Energies, MDPI, vol. 16(4), pages 1-23, February.
    10. Yao, Ye, 2010. "Using power ultrasound for the regeneration of dehumidizers in desiccant air-conditioning systems: A review of prospective studies and unexplored issues," Renewable and Sustainable Energy Reviews, Elsevier, vol. 14(7), pages 1860-1873, September.
    11. Wansheng Yang & Hao Deng & Zhangyuan Wang & Xudong Zhao & Song He, 2017. "Performance Investigation of the Novel Solar-Powered Dehumidification Window for Residential Buildings," Energies, MDPI, vol. 10(9), pages 1-17, September.
    12. Low, Elaine & Huang, Si-Min & Yang, Minlin & Show, Pau Loke & Law, Chung Lim, 2021. "Design of cascade analysis for renewable and waste heat recovery in a solar thermal regeneration unit of a liquid desiccant dehumidification system," Energy, Elsevier, vol. 235(C).

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