Experimental study of the effect of drag reducing agent on pressure drop and thermal efficiency of an air cooler

Effect of polymeric drag reduction agents (DRAs) on pressure drop and heat transfer was studied. Aqueous solutions of carboxy methyl cellulose were used inside an air-finned heat exchanger. Despite the previous studies which indicated the importance of drag reduction just in turbulent flow, results...

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Bibliographic Details
Published inHeat and mass transfer Vol. 52; no. 1; pp. 63 - 72
Main Authors Peyghambarzadeh, S. M., Hashemabadi, S. H., Saffarian, H., Shekari, F.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 01.01.2016
Subjects
Engineering
Engineering Thermodynamics
Heat and Mass Transfer
Industrial Chemistry/Chemical Engineering
Original
Thermodynamics
Drag Reduction
Heat Transfer
Heat Transfer Coefficient
Heat Exchanger
Friction Factor
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Summary:Effect of polymeric drag reduction agents (DRAs) on pressure drop and heat transfer was studied. Aqueous solutions of carboxy methyl cellulose were used inside an air-finned heat exchanger. Despite the previous studies which indicated the importance of drag reduction just in turbulent flow, results of this study in laminar flow indicated that the addition of DRA increases drag reduction, and decreases the overall heat transfer coefficient.
ISSN:0947-7411
1432-1181
DOI:10.1007/s00231-015-1650-z