出版日期：2007-11-01 00:00:00

著者：Ho, Chii-dong; Tsai, Yu-chuan; Tu, Jr-wei

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 Communications in Heat and Mass Transfer 50(23-24), pp.4805-4811

摘要：A new external-recycle device of multi-pass heat exchangers with uniform wall temperature, resulting in a considerable heat-transfer efficiency improvement, has been designed and studied theoretically. The theoretical analysis on the temperature profile and heat-transfer efficiency improvement has been developed by using an eigenfunction expansion in power series. The analytical predictions are represented graphically and compared with that in single-pass devices and the previous work [C.D. Ho, H.M. Yeh, Y.C. Tsai, Improvement in performance of multi-pass laminar counterflow heat exchangers with external refluxes, Int. J. Heat Mass Transfer 45 (2002) 3529–3547]. A substantial heat-transfer efficiency improvement is obtained by employing such a new recycle type with a suitable adjustment of the impermeable-sheet position and recycle ratio, instead of using the single-pass device without external recycle for Gz>10 and the recycle type of the previous study for Gz>30.

關鍵字：Heat exchangers;Conjugated Graetz problems;Multi-pass operations;External recycle

語言：en

ISSN：1879-0178 0735-1933

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