Prediction of EVAL membrane morphologies using the phase diagram of water–DMSO–EVAL at different temperatures

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Title:	Prediction of EVAL membrane morphologies using the phase diagram of water–DMSO–EVAL at different temperatures
Authors:	Young, Tai-horng;鄭廖平;Cheng, Liao-ping;You, Wei-ming;Chen, Li-yen
Contributors:	淡江大學化學工程與材料工程學系
Keywords:	EVAL membranes;Temperature;Crystallization
Date:	1999-04
Issue Date:	2010-03-09 10:04:07 (UTC+8)
Publisher:	London: Elsevier
Abstract:	Heat transfer in parallel-flow rectangular recuperators with internal recycle has been investigated. In contrast to a single-pass device of same size without recycle, considerable improvement in performance is achievable if one of the flow channels, either heated-fluid phase or cooled-fluid phase, is divided into two subchannels of same width with one performed as the cocurrent-flow operating subchannel and the other as the countercurrent-flow reflux subchannel which provides the increase of fluid velocity, resulting in reduction of heat-transfer resistance. The improvement in performance by recycling operation increases as flow rate and reflux ratio increase with negligible amount of hydraulic-dissipated energy.
Relation:	Polymer 40(9), pp.2189-2195
DOI:	10.1016/S0032-3861(98)00455-8
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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