Improvement in Device Performance of Power-Law Fluids in Double-pass Concentric Circular Heat Exchangers

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Title:	Improvement in Device Performance of Power-Law Fluids in Double-pass Concentric Circular Heat Exchangers
Authors:	Ho, Chii-Dong;Lin, Gwo-Geng;Ku, Kaung-Kai;Lin, Cheng-Yi
Keywords:	Shear Thinning Fluid;Power-Law Fluids;Concentric Circular Heat Exchanger;Conjugated Graetz Problem;Orthogonal Expansion Technique
Date:	2015-07
Issue Date:	2016-10-22 02:11:10 (UTC+8)
Publisher:	Kagaku Kogaku Kyokai,Society of Chemical Engineers, Japan
Abstract:	The mathematical formulation of a heat transfer flow problem was developed assuming a laminar velocity distribution in both inner and annular channels with ignoring axial conduction, and the analytical solution was obtained using an orthogonal expansion technique in terms of power series. Qualitative agreement was achieved between the analytical solutions and the experimental results. Comparisons made between the results from the double-pass concentric circular heat exchanger and those in a single-pass device (open conduit) are presented graphically. A considerable improvement in heat transfer is obtainable by employing double-pass devices instead of single-pass.
Relation:	Journal of Chemical Engineering of Japan 48(7), p.533-537
DOI:	10.1252/jcej.14we398
Appears in Collections:	[Graduate Institute & Department of Chemical and Materials Engineering] Journal Article

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