期刊論文
學年 | 97 |
---|---|
學期 | 1 |
出版(發表)日期 | 2009-01-15 |
作品名稱 | Conjugated heat transfer in double-pass laminar counterflow concentric-tube heat exchangers with sinusoidal wall fluxes |
作品名稱(其他語言) | |
著者 | Ho, Chii-Dong; Tu, Jr-Wei; Yang, Chih-Ming |
單位 | 淡江大學化學工程與材料工程學系 |
出版者 | Kidlington: Pergamon |
著錄名稱、卷期、頁數 | International Journal of Heat and Mass Transfer 52(1-2), pp.45-55 |
摘要 | An analytical method is proposed to predict the temperature distribution and local Nusselt number for laminar flow in a double-pass countercurrent heat exchanger with sinusoidal heat flux distribution. A design of inserting in parallel an impermeable barrier to divide an open conduit into two subchannels for conducting double-pass operations, resulting in substantially improved the heat transfer rate, has been evaluated theoretically in the fully developed region. Comparison with the theoretical results shows that the heat-transfer efficiency improvement for double-pass concentric circular heat exchangers is generally higher than those in the single-pass operations without an impermeable barrier inserted. The influences of the impermeable-barrier location on the heat-transfer efficiency improvement and power consumption increment, as indicated from theoretical predictions, can be used to determine the economical feasibility in operating double-pass devices. |
關鍵字 | Sinusoidal heat fluxes;Conjugated Graetz problems;Double-pass operation;Concentric circular heat exchanger |
語言 | en |
ISSN | 0017-9310 1879-2189 |
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 | 否 |
國別 | GBR |
公開徵稿 | |
出版型式 | ,電子版,紙本 |
相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/65515 ) |