教師資料查詢 | 類別: 期刊論文 | 教師: 葉和明 Yeh Ho-ming (瀏覽個人網頁)

標題:External recycle on upward-type double-pass solar air heaters
學年
學期
出版(發表)日期2011/05/01
作品名稱External recycle on upward-type double-pass solar air heaters
作品名稱(其他語言)
著者Yeh, Ho-ming
單位淡江大學化學工程與材料工程學系
出版者Philadelphia: Taylor & Francis Group
著錄名稱、卷期、頁數Chemical Engineering Communications 198(5), pp.652-667
摘要The external recycle effect on collector efficiency in an upward-type double-pass flat-plate solar air heater is investigated theoretically. Application of recycle to a solar air heater has two conflicting effects: the desirable effect of increasing the heat transfer coefficient and the undesirable effect of decreasing the heat transfer driving force (temperature difference). The theoretical predictions show that more than 150% improvement in collector efficiency is obtainable if external recycling is carried out in a way that the advantage effect compensates for the disadvantage effect. The collector performance improvement increases with increasing recycling ratio, especially when operating at a lower airflow rate with higher inlet air temperature. The collector efficiency obtained with a double-pass device with recycling improves the efficiency obtained with a single-pass device of the same size with recycling.
關鍵字Air heating; Double pass; Solar collector; Upward type
語言英文(美國)
ISSN0098-6445
期刊性質國外
收錄於SCI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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