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: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
語言英文
ISSN1879-2189;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
國別英國
公開徵稿
出版型式,電子版,紙本
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