教師資料查詢 | 類別: 期刊論文 | 教師: 何啟東 Ho, Chii-dong (瀏覽個人網頁)

標題:Effect of external recycle on the performances of flat-plate solar air heaters with internal fins attached
學年97
學期2
出版(發表)日期2009/05/01
作品名稱Effect of external recycle on the performances of flat-plate solar air heaters with internal fins attached
作品名稱(其他語言)
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Elsevier
著錄名稱、卷期、頁數Renewable Energy 34(5), pp.1340-1347
摘要The influence of external recycle on the collector efficiency in solar air heaters with internal fins attached, has been investigated theoretically. The application of external recycle operation to solar air heaters actually has two conflict effects. One is the increase in fluid velocity to decrease the heat-transfer resistance, which is good for performance, while the other is lowering the driving force (temperature difference) of heat-transfer, due to the remixing at the inlet, which is bad for performance. It is found that considerable improvement in collector efficiency is obtainable if the operation is carried out with an external recycle, where the desirable effect overcomes the undesirable effect. The enhancement increases with increasing reflux ratio, especially for operating at lower air flow rate with higher inlet air temperature.
關鍵字Solar air heater;Internal fin;Collector efficiency;External recycle
語言英文
ISSN0960-1481;1879-0682
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Ho, Chii-dong
審稿制度
國別英國
公開徵稿
出版型式,電子版,紙本
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