Open AccessThermal-Hydraulic Performance Analysis by Means of Rectangular Winglet Vortex Generators in a Channel: An Experimental Study
Author(s) -
Oktarina Heriyani,
Mohamad Djaeni,
Syaiful Syaiful
Publication year - 2021
Publication title -
european journal of engineering and technology research
Language(s) - English
Resource type - Journals
ISSN - 2736-576X
DOI - 10.24018/ejeng.2021.6.3.2424
Subject(s) - wingtip device , vortex generator , mechanics , heat exchanger , vortex , heat transfer , thermal , airflow , heat transfer enhancement , channel (broadcasting) , materials science , line (geometry) , flow (mathematics) , heat transfer coefficient , engineering , physics , thermodynamics , mathematics , geometry , electrical engineering , aerodynamics
Vortex generators (VGs) are one of the effective passive models used to increase the heat transfer rate in heat exchangers. In this experiment, heat transfer from six cylinders heated to the airflow was improved by attaching rectangular winglet vortex generators (RWVGs) to a plate in a rectangular channel. The installation aimed to increase the value of the thermal-hydraulic performance evaluation criteria in the line. This experimental study was carried out by varying the fluid flow velocity from 0.4 m/s to 2 m/s with an interval of 0.2 m/s in the channel. Three pairs of VGs were arranged in both in-line and staggered configurations. The experimental results show that the thermal-hydraulic performance evaluation criteria for three pairs of vortex generators in the staggered configuration was 15.17% higher than the baseline, while the thermal-hydraulic performance of the in-line arrangement was 1.54% higher than the staggered one.