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Experimental and theoretical research of a fin-tube type internally-cooled liquid desiccant dehumidifier

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  • Luo, Yimo
  • Shao, Shuangquan
  • Xu, Hongbo
  • Tian, Changqing
  • Yang, Hongxing

Abstract

The experimental studies of fin-tube type internally-cooled dehumidifiers are still limited until now. In the present paper, the performance of a cross-flow internally-cooled dehumidifier is studied by both of experiment and simulation. The dehumidifier is made up of fin-tube heat exchangers with high corrosion resistance. Compared with the dehumidifier of the literature, it is found that the dehumidifier of this work performs well in terms of the dehumidification efficiency. Meanwhile, the heat transfer coefficient is correlated on the basis of the experimental data. By applying the correlated coefficient, the theoretical model can predicate the performance of the dehumidifier with an acceptable accuracy. Then the validated model is employed to give suggestions for optimizing the geometry design and operating conditions of the dehumidifier. Through calculation, it is discovered that the best length of the air flow direction for the present dehumidifier is about 0.3m. In addition, the ratio of solution to air flow rate can be decided by the simulation as well.

Suggested Citation

  • Luo, Yimo & Shao, Shuangquan & Xu, Hongbo & Tian, Changqing & Yang, Hongxing, 2014. "Experimental and theoretical research of a fin-tube type internally-cooled liquid desiccant dehumidifier," Applied Energy, Elsevier, vol. 133(C), pages 127-134.
    • Handle: RePEc:eee:appene:v:133:y:2014:i:c:p:127-134
    DOI: 10.1016/j.apenergy.2014.07.085
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    13. Yang, Zili & Zhang, Kaisheng & Hwang, Yunho & Lian, Zhiwei, 2016. "Performance investigation on the ultrasonic atomization liquid desiccant regeneration system," Applied Energy, Elsevier, vol. 171(C), pages 12-25.
    14. Tao Wen & Lin Lu & Hongxing Yang & Yimo Luo, 2018. "Investigation on the Regeneration and Corrosion Characteristics of an Anodized Aluminum Plate Regenerator," Energies, MDPI, vol. 11(5), pages 1-15, May.
    15. Luo, Yimo & Wang, Meng & Yang, Hongxing & Lu, Lin & Peng, Jinqing, 2015. "Experimental study of the film thickness in the dehumidifier of a liquid desiccant air conditioning system," Energy, Elsevier, vol. 84(C), pages 239-246.
    16. Wen, Tao & Lu, Lin, 2019. "A review of correlations and enhancement approaches for heat and mass transfer in liquid desiccant dehumidification system," Applied Energy, Elsevier, vol. 239(C), pages 757-784.
    17. Wen, Tao & Lu, Lin & Li, Mai & Zhong, Hong, 2018. "Comparative study of the regeneration characteristics of LiCl and a new mixed liquid desiccant solution," Energy, Elsevier, vol. 163(C), pages 992-1005.
    18. Ou, Xianhua & Cai, Wenjian & He, Xiongxiong & Zhai, Deqing, 2018. "Experimental investigations on heat and mass transfer performances of a liquid desiccant cooling and dehumidification system," Applied Energy, Elsevier, vol. 220(C), pages 164-175.
    19. Islam, M.R. & Alan, S.W.L. & Chua, K.J., 2018. "Studying the heat and mass transfer process of liquid desiccant for dehumidification and cooling," Applied Energy, Elsevier, vol. 221(C), pages 334-347.
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