教師資料查詢 | 類別: 期刊論文 | 教師: 何啟東 Ho, Chii-dong (瀏覽個人網頁)

標題:Conjugated heat transfer in double-pass laminar counterflow concentric-tube heat exchangers with sinusoidal wall fluxes
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
語言英文
ISSN0017-9310;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
國別英國
公開徵稿
出版型式,電子版,紙本
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