期刊論文
學年 | 101 |
---|---|
學期 | 2 |
出版(發表)日期 | 2013-07-01 |
作品名稱 | Heat transfer modeling of conjugated Graetz problems in double-pass parallel-plate heat exchangers under asymmetric wall temperatures |
作品名稱(其他語言) | |
著者 | Chii-Dong Ho; Yi-Chin Chen; Hsung Chang; Shung-Wen Kang |
單位 | |
出版者 | |
著錄名稱、卷期、頁數 | Journal of the Chinese Institute of Engineers 36(5), pp.647-657 |
摘要 | The heat transfer of a Graetz problem is investigated theoretically. The problem involves an improvement to the design of a parallel-plate heat exchanger using an inserted plate which forms a double-pass device with recycle operation. The parallel plates are at different temperatures. The theoretical mathematical model is solved analytically using the separation of variables, superposition principle, and an orthogonal expansion technique in extended power series. Significant heat transfer improvement can be realized by the design compared to a single-pass device. The improvement is greater for a larger Graetz number system. For a small Graetz number system, the single-pass design is preferred. The optimal location of the inserted plate is when the two subchannels are at the same height. |
關鍵字 | conjugated Graetz problems;asymmetric wall temperature;double-pass operation;performance improvement |
語言 | en |
ISSN | |
期刊性質 | 國內 |
收錄於 | SCI EI |
產學合作 | |
通訊作者 | |
審稿制度 | 否 |
國別 | TWN |
公開徵稿 | |
出版型式 | ,電子版 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109581 ) |