Performance analysis of four-partition desiccant wheel and hybrid dehumidification air-conditioning system

Jongsoo Jeong, Seiichi Yamaguchi, Kiyoshi Saito, Sunao Kawai

    Research output: Contribution to journalArticle

    63 Citations (Scopus)

    Abstract

    A desiccant dehumidification system with air can decrease energy consumption because it can be driven by low-grade waste heat below 80 °C. If this system can be driven by low-temperature heat sources whose temperature is below 50 °C, exhausted heat from fuel cells or air conditioners that exist everywhere can be used as heat sources. This could lead to considerable energy saving. This study provides a detailed evaluation of the performance of a four-partition desiccant wheel to make a low-temperature driving heat source possible and achieve considerable energy saving by the simulation and experiment. Further, the study investigates the in-depth performance of a hybrid air-conditioning system with a four-partition desiccant wheel by simulation. As a result, it was clear that there exists an optimum rotational speed to maximize the dehumidification performance and that the hybrid air-conditioning system improves COP by approximately 94% as compared to the conventional vapour compression-type refrigerator.

    Original languageEnglish
    Pages (from-to)496-509
    Number of pages14
    JournalInternational Journal of Refrigeration
    Volume33
    Issue number3
    DOIs
    Publication statusPublished - 2010 May

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    Keywords

    • Air conditioning
    • Conditionnement d'air
    • Desiccant system
    • Desiccant wheel
    • Géométrie
    • gel de silice
    • Geometry
    • Modélisation
    • Modelling
    • Performance
    • Roue déshydratante
    • Silica gel
    • Simulation
    • Système à déshydratant

    ASJC Scopus subject areas

    • Mechanical Engineering
    • Building and Construction

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