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Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers

In the current work, the thermal-hydraulic performance of fin and flat tube heat exchangers with and without the addition of vortex generators are experimentally investigated in a relatively low Reynolds number flow. For the experimental data collection, the existing wind tunnel available at the Fa...

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Main Authors: Ahmed Yousif Adam, Mohammed, A. N., Oumer, Azri, Alias, M., Ishak
Format: Conference or Workshop Item
Language:English
Published: Universiti Malaysia Pahang 2016
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/15788/1/P081%20pg582-590.pdf
http://umpir.ump.edu.my/id/eprint/15788/
http://ee.ump.edu.my/ncon/wp-content/uploads/2016/10/Proceeding-NCON-PGR-2016.zip
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spelling my.ump.umpir.157882020-02-21T07:51:42Z http://umpir.ump.edu.my/id/eprint/15788/ Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers Ahmed Yousif Adam, Mohammed A. N., Oumer Azri, Alias M., Ishak TJ Mechanical engineering and machinery In the current work, the thermal-hydraulic performance of fin and flat tube heat exchangers with and without the addition of vortex generators are experimentally investigated in a relatively low Reynolds number flow. For the experimental data collection, the existing wind tunnel available at the Faculty of Mechanical Engineering (FKM) is used. However, the fins are modified by attaching triangular vortex generators of 9 mm x 9 mm size oriented at 45o to the incoming air flow direction. The fan speed is controlled so that the air flows over the fin-and-tube banks at five different air velocities (1.8 m/s, 2.3 m/s, 2.8 m/s, 3.3 m/s and 3.8 m/s) for both inline and staggered tube configurations. The obtained results show that the temperature distribution increased by a maximum of 26.9% for staggered arrangement when the vortex generator is added compared to that obtained without vortex generator. Moreover, the average heat transfer coefficient of the staggered arrangement with vortex generator is up to 46% higher than the case without vortex generator while the pressure drop for an inline arrangement with vortex generator increased up to 35% compared to the inline arrangement without vortex generator. In general, it is observed from the experimental results that the fin-and-flat tube banks with vortex generator have similar heat transfer performance and pressure drop for both arrangements. Hence, the results obtained from this study can provide information for further investigation of flat tube heat exchangers for industrial applications. Universiti Malaysia Pahang 2016 Conference or Workshop Item PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/15788/1/P081%20pg582-590.pdf Ahmed Yousif Adam, Mohammed and A. N., Oumer and Azri, Alias and M., Ishak (2016) Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers. In: Proceedings of The National Conference for Postgraduate Research (NCON-PGR 2016), 24-25 September 2016 , Universiti Malaysia Pahang (UMP), Pekan, Pahang. pp. 582-590.. http://ee.ump.edu.my/ncon/wp-content/uploads/2016/10/Proceeding-NCON-PGR-2016.zip
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TJ Mechanical engineering and machinery
spellingShingle TJ Mechanical engineering and machinery
Ahmed Yousif Adam, Mohammed
A. N., Oumer
Azri, Alias
M., Ishak
Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
description In the current work, the thermal-hydraulic performance of fin and flat tube heat exchangers with and without the addition of vortex generators are experimentally investigated in a relatively low Reynolds number flow. For the experimental data collection, the existing wind tunnel available at the Faculty of Mechanical Engineering (FKM) is used. However, the fins are modified by attaching triangular vortex generators of 9 mm x 9 mm size oriented at 45o to the incoming air flow direction. The fan speed is controlled so that the air flows over the fin-and-tube banks at five different air velocities (1.8 m/s, 2.3 m/s, 2.8 m/s, 3.3 m/s and 3.8 m/s) for both inline and staggered tube configurations. The obtained results show that the temperature distribution increased by a maximum of 26.9% for staggered arrangement when the vortex generator is added compared to that obtained without vortex generator. Moreover, the average heat transfer coefficient of the staggered arrangement with vortex generator is up to 46% higher than the case without vortex generator while the pressure drop for an inline arrangement with vortex generator increased up to 35% compared to the inline arrangement without vortex generator. In general, it is observed from the experimental results that the fin-and-flat tube banks with vortex generator have similar heat transfer performance and pressure drop for both arrangements. Hence, the results obtained from this study can provide information for further investigation of flat tube heat exchangers for industrial applications.
format Conference or Workshop Item
author Ahmed Yousif Adam, Mohammed
A. N., Oumer
Azri, Alias
M., Ishak
author_facet Ahmed Yousif Adam, Mohammed
A. N., Oumer
Azri, Alias
M., Ishak
author_sort Ahmed Yousif Adam, Mohammed
title Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
title_short Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
title_full Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
title_fullStr Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
title_full_unstemmed Effect of Vortex Generator on the Air-Side Thermal-Hydraulic Performance of Flat Tube Heat Exchangers
title_sort effect of vortex generator on the air-side thermal-hydraulic performance of flat tube heat exchangers
publisher Universiti Malaysia Pahang
publishDate 2016
url http://umpir.ump.edu.my/id/eprint/15788/1/P081%20pg582-590.pdf
http://umpir.ump.edu.my/id/eprint/15788/
http://ee.ump.edu.my/ncon/wp-content/uploads/2016/10/Proceeding-NCON-PGR-2016.zip
_version_ 1662754694798245888
score 13.211869

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