Analytical and experimental studies of power-law fluids in double-pass heat exchangers for improved device performance under uniform heat fluxes

doi:10.1016/j.ijheatmasstransfer.2013.02.007

淡江大學機構典藏 > 工學院 > 化學工程與材料工程學系暨研究所 > 期刊論文 > Item 987654321/91640

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題名:	Analytical and experimental studies of power-law fluids in double-pass heat exchangers for improved device performance under uniform heat fluxes
作者:	Ho, Chii-Dong;Lin, Gwo-Geng;Lan, Wei-Hao
貢獻者:	淡江大學化學工程與材料工程學系
關鍵詞:	Power-law fluids;Uniform wall fluxes;Double-pass operations;Conjugated graetz problem;Heat transfer efficiency
日期:	2013-06
上傳時間:	2013-07-23 17:13:09 (UTC+8)
出版者:	Pergamon Press
摘要:	Considerable improvement of heat transfer efficiency for power-law fluids in flat-plate heat exchangers is obtainable by inserting in parallel an impermeable resistless sheet to divide an open duct into two channels for conducting double-flow operations. The influence of the power-law index on average Nusselt numbers in double-pass parallel-plate heat exchangers under uniform wall fluxes has been investigated theoretically. The complete solution was obtained using an eigenfunction expansion technique in terms of power series for the homogeneous part and an asymptotic solution for the non-homogeneous part. The theoretical predictions show that the effect of double-pass operations for power-law fluids results in the heat-transfer efficiency enhancement as compared with those in an open conduit (without an impermeable resistless sheet inserted). The effects of impermeable-sheet position and power consumption increment for power-law fluids have also been presented.
關聯:	International Journal of Heat and Mass Transfer 61, pp.464-474
DOI:	10.1016/j.ijheatmasstransfer.2013.02.007
顯示於類別:	[化學工程與材料工程學系暨研究所] 期刊論文

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