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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Published in | Heat and mass transfer Vol. 52; no. 1; pp. 63 - 72 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Berlin/Heidelberg
Springer Berlin Heidelberg
01.01.2016
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Subjects | |
Online Access | Get full text |
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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. |
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ISSN: | 0947-7411 1432-1181 |
DOI: | 10.1007/s00231-015-1650-z |