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Economic and Experimental Assessment of KCOOH Hybrid Liquid Desiccant-Vapor Compression System

Author

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  • Kashish Kumar

    (Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal 462003, India)

  • Alok Singh

    (Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal 462003, India)

Abstract

A liquid desiccant dehumidification cooling system is a promising, energy-saving, high-efficiency, environmentally friendly technology that maintains thermal comfort effectively indoors by utilizing renewable energy sources or waste heat to enhance system efficiency. In this research, a small-scale (6 kW cooling capacity) hybrid liquid desiccant air-conditioning system (HLDAC) is proposed to evaluate the dehumidification performance of a non-corrosive potassium formate (KCOOH) solution. For this, four input parameters, namely, inlet air flow rate, inlet desiccant temperature, inlet desiccant concentration, and inlet specific air humidity, were selected. Moreover, the different combinations of experiments were designed by employing response surface methodology (RSM) to evaluate the dehumidification performance parameters, namely, dehumidifier latent heat load, coefficient of performance of hybrid system, and moisture removal rate (MRR). Further, a comparative performance analysis between the hybrid system and a standalone vapor compression system (VCS) unit was carried out. The result showed a remarkable increase in coefficient of performance, which was observed at about 28.48% over the standalone VCS unit. Furthermore, the economic assessment of the proposed hybrid system is presented in this paper. Finally, from the economic analysis, it was concluded that the hybrid system had a payback time of 2.65 years compared to the VCS unit.

Suggested Citation

  • Kashish Kumar & Alok Singh, 2022. "Economic and Experimental Assessment of KCOOH Hybrid Liquid Desiccant-Vapor Compression System," Sustainability, MDPI, vol. 14(23), pages 1-25, November.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:23:p:15917-:d:987921
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    References listed on IDEAS

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    1. Giampieri, Alessandro & Ma, Zhiwei & Ling-Chin, Janie & Bao, Huashan & Smallbone, Andrew J. & Roskilly, Anthony Paul, 2022. "Liquid desiccant dehumidification and regeneration process: Advancing correlations for moisture and enthalpy effectiveness," Applied Energy, Elsevier, vol. 314(C).
    2. Garousi Farshi, L. & Mahmoudi, S.M.S. & Rosen, M.A., 2013. "Exergoeconomic comparison of double effect and combined ejector-double effect absorption refrigeration systems," Applied Energy, Elsevier, vol. 103(C), pages 700-711.
    3. Rafique, M. Mujahid & Gandhidasan, P. & Bahaidarah, Haitham M.S., 2016. "Liquid desiccant materials and dehumidifiers – A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 56(C), pages 179-195.
    4. Mei, L. & Dai, Y.J., 2008. "A technical review on use of liquid-desiccant dehumidification for air-conditioning application," Renewable and Sustainable Energy Reviews, Elsevier, vol. 12(3), pages 662-689, April.
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    Cited by:

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    2. Jiayin Xu & Xu Gui & Kun Li & Guifen Jiang & Tao Wang & Zhen Xu, 2023. "Microgrid Robust Planning Model and Its Modification Strategy Based on Improved Grey Relational Theory," Sustainability, MDPI, vol. 15(3), pages 1-23, February.

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