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:The recycle effect on the collector efficiency improvement of double-pass sheet-and-tube solar water heaters with external recycle
學年
學期
出版(發表)日期2006/06/01
作品名稱The recycle effect on the collector efficiency improvement of double-pass sheet-and-tube solar water heaters with external recycle
作品名稱(其他語言)
著者Ho, Chii-dong; Chen, T. C.
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 31(7), pp.953-970
摘要The paper presents a theoretical prediction of the performance of a double-pass sheet-and-tube solar water heater with external recycle and comparison with that of a conventional type collector. Analytical results show that the recycle effect can effectively enhance the collector efficiency compared with that in a single-pass device with the same flow rate. The desirable effect of increasing convective transfer rate and the undesirable effect of reducing heat-transfer driving force are the two conflict effects produced by the recycle operation. It was found that the increment of convective transfer rate by increasing the recycle ratio could generally compensate for the decrement of the temperature difference, leading to improved performance, especially for low flow rate. Also, the collector efficiency increases with increasing collector aspect ratio (i.e. either increasing the tube length or decreasing the number of tube pairs) for a specified collector area and the distance between tubes.
關鍵字
語言英文
ISSN1879-0682;0960-1481
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
相關連結
SDGs
Google+ 推薦功能,讓全世界都能看到您的推薦!