Collector efficiency in downward-type internal-recycle solar air heaters with attached fins
出版日期:2013-10-01 00:00:00
著者:Yeh, Ho-Ming; Ho, Chii-Dong
著錄名稱、卷期、頁數:Energies 6(10), p.5130-5144
摘要:The internal-recycle operation effect on collector efficiency in downward-type rectangular solar air heaters with attached fins is theoretically investigated. It is found that considerable collector efficiency is obtainable if the collector has attached fins and the operation is carried out with internal recycling. The recycling operation increases the fluid velocity to decrease the heat transfer resistance, compensating for the undesirable effect of decreasing the heat transfer driving force (temperature difference) due to remixing. The attached fins provide an enlarged heat transfer area. The order of performance in a device of same size is: double pass with recycle and fins > double pass with recycle but without fins > single pass without recycle and fins.
關鍵字:collector efficiency;solar air heater;downward type;fins attached;flat plate;internal recycle
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:否
國別:CHE
出版型式:電子版