教師資料查詢 | 類別: 期刊論文 | 教師: 張 煖 Chang, Hsuan (瀏覽個人網頁)

標題:The influences of recycle on a double-pass laminar counterflow concentric-tube heat exchangers with sinusoidal wall fluxes
學年97
學期2
出版(發表)日期2009/07/01
作品名稱The influences of recycle on a double-pass laminar counterflow concentric-tube heat exchangers with sinusoidal wall fluxes
作品名稱(其他語言)
著者何啟東; Ho, Chii-dong; Hsien, Tsung-lieh;張煖; Chang, Hsuan; 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Elsevier
著錄名稱、卷期、頁數International Communications in Heat and Mass Transfer 36(6), pp.579-584
摘要The effects of external recycle at the ends on double-pass laminar countercurrent heat exchangers with sinusoidal heat flux distribution are investigated analytically by setting a general solution to separate the original boundary value problem into a partial differential equation, which is solved by Frobenius method, and an ordinary differential equation. Analytical results show that recycle effects enhance the heat-transfer efficiency due to that the desirable effect of forced-convection increment has more influence than the undesirable effect of the heat-transfer driving-force decrement, and hence the forced-convection increment by increasing the recycle ratio leads to improved device performance in heat-transfer rate as compared with that in the single-pass operation (without an impermeable sheet inserted).
關鍵字Sinusoidal heat fluxes; Heat transfer; Recycle effect; Double-pass operation; Concentric heat exchanger
語言英文
ISSN0735-1933
期刊性質國外
收錄於SCI;EI
產學合作
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