Recycle Effect on Double-Pass Concentric Circular Mass Exchangers under Uniform Wall Fluxes

doi:10.1002/ceat.200800244

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 987654321/65511

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题名:	Recycle Effect on Double-Pass Concentric Circular Mass Exchangers under Uniform Wall Fluxes
作者:	Ho, Chii-Dong;Chuang, Yu-Chuan;Tu, Jr-Wei
贡献者:	淡江大學化學工程與材料工程學系
关键词:	Conjugated Graetz problem;Fluids;Mass transfer;Recycle effects
日期:	2008-11-01
上传时间:	2013-05-31 11:40:42 (UTC+8)
出版者:	Weinheim: Wiley - V C H Verlag GmbH & Co. KGaA
摘要:	A study on improvement in device performance of a double-pass concentric circular mass exchanger with uniform wall fluxes and external refluxes was conducted under counterflow operations. The linear superposition of an asymptotic solution and a homogeneous solution with the use of an orthogonal expansion technique for solving such a conjugated Graetz problem is formulated theoretically and the analytical predictions are applied to investigate a substantial masstransfer improvement. A mathematical expression for the average Sherwood numbers and the outlet dimensionless concentration is given. Comparisons of analytical results are made with the single-pass operations of the same working dimensions (without permeable barriers inserted and without recycle). Considerable device improvement in mass transfer rate is obtained by introducing the recycle-effect concept in designing such double-pass devices. The effect of permeable barriers on the mass-transfer efficiency improvement as well as on the power consumption increment has also been delineated.
關聯:	Chemical Engineering & Technology 31(11), pp.1638-1644
DOI:	10.1002/ceat.200800244
显示于类别:	[化學工程與材料工程學系暨研究所] 期刊論文

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