Unsteady-state analysis of a counter-flow dew point evaporative cooling system

J. Lin, K. Thu, T. D. Bui, R. Z. Wang, K. C. Ng, M. Kumja, K. J. Chua

    研究成果: ジャーナルへの寄稿学術誌査読

    33 被引用数 (Scopus)

    抄録

    Understanding the dynamic behavior of the dew point evaporative cooler is crucial in achieving efficient cooling for real applications. This paper details the development of a transient model for a counter-flow dew point evaporative cooling system. The transient model approaching steady conditions agreed well with the steady state model. Additionally, it is able to accurately predict the experimental data within 4.3% discrepancy. The transient responses of the cooling system were investigated under different inlet air conditions. Temporal temperature and humidity profiles were analyzed for different transient and step responses. The key findings from this study include: (1) the response trend and settling time is markedly dependent on the inlet air temperature, humidity and velocity; (2) the settling time of the transient response ranges from 50 s to 300 s when the system operates under different inlet conditions; and (3) the average transient wet bulb effectiveness (1.00–1.06) of the system is observed to be higher than the steady state wet bulb effectiveness (1.01) for our range of study.

    本文言語英語
    ページ(範囲)172-185
    ページ数14
    ジャーナルEnergy
    113
    DOI
    出版ステータス出版済み - 10月 15 2016

    !!!All Science Journal Classification (ASJC) codes

    • 土木構造工学
    • 建築および建設
    • モデリングとシミュレーション
    • 再生可能エネルギー、持続可能性、環境
    • 燃料技術
    • エネルギー工学および電力技術
    • 汚染
    • エネルギー(全般)
    • 機械工学
    • 産業および生産工学
    • マネジメント、モニタリング、政策と法律
    • 電子工学および電気工学

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