Hybrid liquid desiccant air-conditioning system

Experiments and simulations

Seiichi Yamaguchi, Jongsoo Jeong, Kiyoshi Saito, Hikoo Miyauchi, Masatoshi Harada

    Research output: Contribution to journalArticle

    58 Citations (Scopus)

    Abstract

    This study focuses on a hybrid liquid desiccant air-conditioning system consisting of a conventional liquid desiccant system and a vapour compression heat pump. The hybrid liquid desiccant air-conditioning system is expected to enhance the system efficiency of a conventional liquid desiccant system. In this study, the liquid desiccant is aqueous solution of lithium chloride and the refrigerant of the vapour compression heat pump is R407C. The main feature of this system is that the absorber and regenerator are integrated with the evaporator and condenser respectively. The performance evaluation test is conducted to obtain the primary data. Additionally, the improvement method for the system efficiency is discussed by the mathematical calculations. As a result, the system can dehumidify 5.9 g/kg(DA) under the conditions of summer in Tokyo, Japan. Then, the calculation results show that COPs can become higher by improving the compressor isentropic efficiency and the temperature efficiency of solution heat exchanger.

    Original languageEnglish
    Pages (from-to)3741-3747
    Number of pages7
    JournalApplied Thermal Engineering
    Volume31
    Issue number17-18
    DOIs
    Publication statusPublished - 2011 Dec

    Fingerprint

    Air conditioning
    Liquids
    Experiments
    Vapors
    Pumps
    Condensers (liquefiers)
    Regenerators
    Refrigerants
    Evaporators
    Heat exchangers
    Compressors
    Compaction
    Lithium
    Temperature
    Hot Temperature

    Keywords

    • Air-Conditioning
    • Dehumidification
    • Heat pump
    • Liquid desiccant
    • Simulation

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Industrial and Manufacturing Engineering

    Cite this

    Hybrid liquid desiccant air-conditioning system : Experiments and simulations. / Yamaguchi, Seiichi; Jeong, Jongsoo; Saito, Kiyoshi; Miyauchi, Hikoo; Harada, Masatoshi.

    In: Applied Thermal Engineering, Vol. 31, No. 17-18, 12.2011, p. 3741-3747.

    Research output: Contribution to journalArticle

    Yamaguchi, Seiichi ; Jeong, Jongsoo ; Saito, Kiyoshi ; Miyauchi, Hikoo ; Harada, Masatoshi. / Hybrid liquid desiccant air-conditioning system : Experiments and simulations. In: Applied Thermal Engineering. 2011 ; Vol. 31, No. 17-18. pp. 3741-3747.
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