| Improvement in device performance on laminar counterflow concentric circular heat exchangers with uniform wall fluxes | |
|---|---|
| 學年 | 94 |
| 學期 | 2 |
| 出版（發表）日期 | 2006-07-01 |
| 作品名稱 | Improvement in device performance on laminar counterflow concentric circular heat exchangers with uniform wall fluxes |
| 作品名稱（其他語言） | |
| 著者 | Ho, Chii-dong; Yeh, Shih-cheng |
| 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 | International Journal of Heat and Mass Transfer 49(13-14), pp.2020-2032 |
| 摘要 | The effects of recycle at the ends on the heat transfer through a concentric circular tube with uniform wall fluxes are studied analytically by an orthogonal expansion technique with eigenfunction power series expansion. The heat transfer problem is solved for fully developed laminar velocity profiles in a double-pass circular heat exchanger with ignoring axial conduction and fluid properties of temperature independence. Analytical results show the external recycle can enhance the heat transfer efficiency compared with that in an open tube (without an impermeable circular tube inserted and without recycle). The compensation between the forced-convection increment and heat-transfer driving force decrement are used to study the heat transfer behavior. The effects of the impermeable-tube location on heat transfer efficiency enhancement as well as the power consumption increment have been also discussed. |
| 關鍵字 | Conjugated Graetz problem;Concentric circular tubes;Double-pass operation;Heat transfer;Uniform wall fluxes |
| 語言 | en |
| ISSN | 1879-2189 0017-9310 |
| 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/987654321/53655 ) |
GoogleAnalytics