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Numerical investigations for the optimization of serrated finned-tube heat exchangers

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jun 2011 France Publisher:Elsevier BVJournal:Applied Thermal Engineering, volume 31, pages 1,393-1,401 (issn: 1359-4311,

Authors: Lemouedda, A.; Schmid, A.; Franz, E.; Breuer, M.; Delgado, A.;

doi: 10.1016/j.applthermaleng.2010.12.035

Numerical investigations for the optimization of serrated finned-tube heat exchangers

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Abstract

Helical serrated finned-tubes are well established in many thermal systems. This paper presents the results of numerical calculations carried out for the performance improvement of these devices. The work is divided into three main investigations conducted for Reynolds numbers between Re = 600 and 2600. The first investigation shows the effect of the fin serration, where a comparison between performances of finned tubes with and without fin serration is presented. Another main investigation is conducted on the effect of fin twisting of the outermost part of the fin on the performance of the serrated finned-tubes. Here, twisting angles considered are between β = 0° and 25°. The third investigation deals with the effect of the number of fin segments per period.

Country

France

Related Organizations

University of Erlangen-Nuremberg
Germany
French Institute for Research in Computer Science and Automation
France
Helmut Schmidt University
Germany
Helmut Schmidt University
Germany

Keywords

[PHYS.MECA.THER] Physics/Mechanics/Thermics, Segmented fins, MECA:THER] Sciences de l'ingénieur/Mécanique/Thermique [[SPI], Heat exchangers, Heat transfer enhancement, MECA:THER] Physique/Mécanique/Thermique [[PHYS], [ SPI.MECA.THER ] Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph], Fin twisting, [ PHYS.MECA.THER ] Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph], [SPI.MECA.THER]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Thermics [physics.class-ph], [PHYS.MECA.THER]Physics [physics]/Mechanics [physics]/Thermics [physics.class-ph], Serrated finned-tubes, [SPI.MECA.THER] Engineering Sciences/Mechanics/Thermics, MECA:THER] Physics/Mechanics/Thermics [[PHYS], MECA:THER] Engineering Sciences/Mechanics/Thermics [[SPI]

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	84
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%