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Modeling and performance analysis of solar air pretreatment collector/regenerator using liquid desiccant

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  • Peng, Donggen
  • Zhang, Xiaosong

Abstract

A solar liquid regenerator that embodies energy saving effect is a key part in solar liquid cooling air-conditioning system. Solar air pretreatment liquid collector/regenerator as a novel solar C/R (collector/regenerator) can achieve liquid regeneration in lower temperature, which is suitable to be employed in the high humidity area. The heat and mass transfer process was simulated in the novel liquid regenerator and the conclusions show that the increment of solution outlet concentration increases 70%, regeneration efficiency ηz augments 45.7% and storage capacity SC increases 44% as effective solution proportion ESP falls from 100% to 62%. For higher solution outlet concentration needed in the dehumidifier, both lower solution mass flow rate and higher solution inlet concentration all can be adopted in the novel C/R, in which the decrease of effective solution proportion ESP can increase the rate of evaporation G significantly. Along with the augment of air mass flow rate, the rate of evaporation G rises fast firstly and then falls slowly. The simulated results show that there is huge potential of improving and regulating solution regeneration performance by employing the novel C/R.

Suggested Citation

  • Peng, Donggen & Zhang, Xiaosong, 2009. "Modeling and performance analysis of solar air pretreatment collector/regenerator using liquid desiccant," Renewable Energy, Elsevier, vol. 34(3), pages 699-705.
    • Handle: RePEc:eee:renene:v:34:y:2009:i:3:p:699-705
    DOI: 10.1016/j.renene.2008.05.015
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    References listed on IDEAS

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    1. Yang, Ru & Wang, Pai-Lu, 1994. "The optimum glazing height of a glazed solar collector/regenerator for open-cycle absorption cooling," Energy, Elsevier, vol. 19(9), pages 925-931.
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    1. Mohammad, Abdulrahman Th. & Mat, Sohif Bin & Sopian, K. & Al-abidi, Abduljalil A., 2016. "Review: Survey of the control strategy of liquid desiccant systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 58(C), pages 250-258.
    2. Peng, Donggen & Luo, Danting & Cheng, Xiaosong, 2018. "Modeling and performance comparisons of the grading and single solar collector/ regenerator systems with heat recovery," Energy, Elsevier, vol. 144(C), pages 736-749.
    3. Yin, Yonggao & Qian, Junfei & Zhang, Xiaosong, 2014. "Recent advancements in liquid desiccant dehumidification technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 31(C), pages 38-52.
    4. Enteria, Napoleon & Yoshino, Hiroshi & Mochida, Akashi, 2013. "Review of the advances in open-cycle absorption air-conditioning systems," Renewable and Sustainable Energy Reviews, Elsevier, vol. 28(C), pages 265-289.
    5. Wen, Tao & Luo, Yimo & Wang, Meng & She, Xiaohui, 2021. "Comparative study on the liquid desiccant dehumidification performance of lithium chloride and potassium formate," Renewable Energy, Elsevier, vol. 167(C), pages 841-852.
    6. She, Xiaohui & Yin, Yonggao & Zhang, Xiaosong, 2015. "Suggested solution concentration for an energy-efficient refrigeration system combined with condensation heat-driven liquid desiccant cycle," Renewable Energy, Elsevier, vol. 83(C), pages 553-564.
    7. Gupta, A. & Anand, Y. & Tyagi, S.K. & Anand, S., 2016. "Economic and thermodynamic study of different cooling options: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 164-194.
    8. Peng, Donggen & Zhang, Xiaosong, 2016. "Experimental investigation on regeneration performance, heat and mass transfer characteristics in a forced solar collector/regenerator," Energy, Elsevier, vol. 101(C), pages 296-308.
    9. Hamza Ayaz & Veerakumar Chinnasamy & Junhyeok Yong & Honghyun Cho, 2021. "Review of Technologies and Recent Advances in Low-Temperature Sorption Thermal Storage Systems," Energies, MDPI, vol. 14(19), pages 1-36, September.
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