An analytical study of power-law fluids in double-pass heat exchangers with external recycle
學年 100
學期 2
出版(發表)日期 2012-04-01
作品名稱 An analytical study of power-law fluids in double-pass heat exchangers with external recycle
作品名稱(其他語言)
著者 Lin, Gwo-Geng; Ho, Chii-Dong; Huang, Jung-Jeng; Chen, Yi-Chin
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 55(9-10), pp.2261–2267
摘要 The influence of the recycle effect on heat transfer to the power-law fluids from a double-pass parallel-plate heat exchanger with uniform wall temperature has been studied analytically. The governing equations are solved by an orthogonal expansion technique in terms of power series. The heat transfer problem is solved for fully developed laminar flow through parallel-plate channels by ignoring axial conduction, with fluid properties of temperature independence. The dependence of the average Nusselt number on the Graetz number has been studied in detail. Analytical results show that the recycle effect can enhance the heat transfer efficiency as compared with that in a single pass (without an impermeable plate inserted and without recycle). Considerable heat-transfer enhancement is obtained by introducing the recycle-effect concept in designing such double-pass operations. The effects of the impermeable-sheet position and the power-law index on the enhancement of device performance as well as the power consumption increment have also been delineated.
關鍵字
語言 en
ISSN 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 GBR
公開徵稿
出版型式 紙本
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