Pareto optimization of heat transfer enhancement of finned-tube heat exchangers with delta-winglet vor-tex generators

  • For circular finned tubes often used in heat exchangers, the wake regions behind the tubes are regions with low heat transfer coefficient. Delta-winglet vortex generators on the fin surfaces reduce the width of the wake regions and improve the overall heat transfer rate. The present work studies numerically the effect of enhancing the performance of the finned-tubes using delta-winglets. Simulations were carried out on a model of three circular tube rows with circular fins for Reynolds numbers of 500, 700, and 900 (based on the inlet velocity and the hydraulic diameter of unit cell). Eighteen basic configurations with different number and positions of delta-winglets were investigated. The flow and heat transfer behaviors are analyzed for certain configurations. Finally, the optimal configurations are presented based on the Pareto optimality strategy.

Export metadata

Additional Services

Search Google Scholar
Metadaten
Author:A. Lemouedda, Michael BreuerORCiD, E. Franz
DOI:https://doi.org/10.1615/ICHMT.2009.TurbulHeatMassTransf.1860
ISBN:978–1–56700–262–1
ISSN:2377-2816
Parent Title (German):Turbulence, heat and mass transfer 6 : proceedings of the Sixth International Symposium on Turbulence, Heat and Mass Transfer Rome, Italy, 14 - 18 September, 2009
Document Type:Part of a Book
Language:English
Date of first Publication:2009/09/14
Reviewed:Begutachtet/Reviewed
Release Date:2024/07/11
First Page:1015
Last Page:1018
Konferenzangabe:6th International Symposium on Turbulence, Heat and Mass Transfer, (THMT-6), Sept. 14–18, 2009, Rome, Italy
institutes:Fakultät Verfahrenstechnik
Research Themes:Energie & Ressourcen
Verstanden ✔
Diese Webseite verwendet technisch erforderliche Session-Cookies. Durch die weitere Nutzung der Webseite stimmen Sie diesem zu. Unsere Datenschutzerklärung finden Sie hier.