出版日期：2006-07-01 00:00:00

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

通訊作者：Ho, Chii-dong

審稿制度：否

國別：GBR

出版型式：電子版,紙本