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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/19440

    Title: The improvement of collector efficiency in solar air heaters by simultaneously air flow over and under the absorbing plate
    Authors: 葉和明;Yeh, Ho-ming;何啟東;Ho, Chii-dong;Hou, Jun-ze
    Contributors: 淡江大學化學工程與材料工程學系
    Date: 1999-10
    Issue Date: 2009-11-04 15:48:07 (UTC+8)
    Publisher: London: Elsevier
    Abstract: The performance of double-flow type solar air heaters, in which air is flowing simultaneously over and under the absorbing plate, is more effective than that of the devices with only one flow channel over or under the absorbing plate because the heat-transfer area in double-flow systems is double. The effect of the fraction of mass flow rate in the upper or lower flow channel of a double-flow device on collector efficiencies, has also been investigated theoretically and experimentally. Considerable improvement in collector performance is obtained by employing a double-flow type solar air heater, instead of using a singleflow device, if the mass flow rates in both flow channels are kept the same.
    Relation: Energy 24(10), pp.857-871
    DOI: 10.1016/S0360-5442(99)00043-2
    Appears in Collections:[化學工程與材料工程學系暨研究所] 期刊論文

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