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Collector Efficiency in Downward-Type Double-Pass Solar Air Heaters with Attached Fins and Operated by External Recycle

類別:期刊論文

學年 / 學期:100-2

出版日期:2012-07-01 00:00:00

著者:Yeh, Ho-ming; Ho, Chii-dong

單位:淡江大學化學工程與材料工程學系

出版者:Basel: M D P I AG

著錄名稱、卷期、頁數:Energies 5(8), pp.2692-2707

摘要:The collector efficiency in a downward-type double-pass external-recycle solar air heater with fins attached on the absorbing plate has been investigated theoretically. Considerable improvement in collector efficiency is obtainable if the collector is equipped with fins and the operation is carried out with an external recycle. Due to the recycling, the desirable effect of increasing the heat transfer coefficient compensates for the undesirable effect of decreasing the driving force (temperature difference) of heat transfer, while the attached fins provide an enlarged heat transfer area. The order of performances in the devices of same size is: double pass with recycle and fins > double pass with recycle but without fins > single pass without recycle and fins.

語言:en

ISSN:1996-1073

期刊性質:國外

收錄於:SCI EI

通訊作者:Ho, Chii-dong

審稿制度:

國別:CHE

出版型式:電子版