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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/44384


    Title: Heat transfer enhancement in cool-thermal discharge systems from ice melting with producing chilled air under time-velocity variations and external recycles
    Authors: 何啟東;Ho, Chii-dong;Yeh, Ho-ming;Tu, Jr-wei;Su, Ying-sian
    Contributors: 淡江大學化學工程與材料工程學系
    Keywords: Heat Transfer;Cool Thermal Discharge;Chilled Air;External Recycles
    Date: 2005-12-01
    Issue Date: 2010-03-09 10:16:58 (UTC+8)
    Publisher: 淡江大學
    Abstract: A mathematical model of cool-thermal discharge systems with external recycle by melting ice with producing chilled air to supply on-peak daytime air-conditioning needs was developed and studied analytically. The estimation of the outlet chilled air temperature and air mass velocity with convective transfer on free water surface under air time-velocity variations for specified inlet temperatures was illustrated. Theoretical results show that the recycle effect can effectively enhance the heat transfer efficiency compared with that in the device without recycle. Three numerical examples of ambient air temperatures varied with time in practical systems were simulated, and the result of air mass velocity with air traversed length as a parameter was also delineated.
    Relation: 淡江理工學刊=Tamkang journal of science and engineering 8(4), pp.291-298
    DOI: 10.6180/jase.2005.8.4.05
    Appears in Collections:[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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