An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger

An experimental study is carried out on the effect of vortex generators (Circular and square) on the flow and heat transfer at variable locations at (X = 0.5, 1.5, 2.5 cm) ahead of a heat exchanger with Reynolds number ranging from 62000< Re < 125000 and heat flux from 3000 ? q ? 8000 W/m2 .In...

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Autor principal: Wisam Abed Kattea
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Lenguaje:EN
Publicado: Al-Khwarizmi College of Engineering – University of Baghdad 2012
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Acceso en línea:https://doaj.org/article/3c8ee9cdfd5f4cfaac2cb8335923f9a1
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spelling oai:doaj.org-article:3c8ee9cdfd5f4cfaac2cb8335923f9a12021-12-02T01:00:25ZAn Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger 1818-1171https://doaj.org/article/3c8ee9cdfd5f4cfaac2cb8335923f9a12012-01-01T00:00:00Zhttp://www.iasj.net/iasj?func=fulltext&aId=25842https://doaj.org/toc/1818-1171An experimental study is carried out on the effect of vortex generators (Circular and square) on the flow and heat transfer at variable locations at (X = 0.5, 1.5, 2.5 cm) ahead of a heat exchanger with Reynolds number ranging from 62000< Re < 125000 and heat flux from 3000 ? q ? 8000 W/m2 .In the experimental investigation, an apparatus is set up to measure the velocity and temperatures around the heat exchanger. The results show that there is an effect for using vortex generators on heat transfer. Also, heat transfer depends on the shape and location. The circular is found to be the best shape for enhancing heat transfer at location [Xm=0.5 cm] distance before heat exchanger is the best location for enhancing heat transfer. The square is the best shape for enhancing heat transfer at location [Xm=2.5 cm] distance before heat exchanger is the best location for enhancing heat transfer.The results of flow over heat exchanger with vortex generators are compared with the flow over heat exchanger without vortex generators. Heat transfer around heat exchanger is enhanced (56%, 50%, 36%) at location (X=0.5, 1.5, 2.5cm) respectively by using circular vortex generators without turbulator and heat transfer around heat exchanger is enhanced (39%, 42%, 51%) at location (X=0.5, 1.5, 2.5cm) respectively by using square shape vortex generators without turbulator.Wisam Abed KatteaAl-Khwarizmi College of Engineering – University of BaghdadarticleVortex generator: VGsNUX: Local nusselt number heat exchangervortex flowheat transfer.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 8, Iss 2, Pp 12-29 (2012)
institution DOAJ
collection DOAJ
language EN
topic Vortex generator: VGs
NUX: Local nusselt number heat exchanger
vortex flow
heat transfer.
Chemical engineering
TP155-156
Engineering (General). Civil engineering (General)
TA1-2040
spellingShingle Vortex generator: VGs
NUX: Local nusselt number heat exchanger
vortex flow
heat transfer.
Chemical engineering
TP155-156
Engineering (General). Civil engineering (General)
TA1-2040
Wisam Abed Kattea
An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
description An experimental study is carried out on the effect of vortex generators (Circular and square) on the flow and heat transfer at variable locations at (X = 0.5, 1.5, 2.5 cm) ahead of a heat exchanger with Reynolds number ranging from 62000< Re < 125000 and heat flux from 3000 ? q ? 8000 W/m2 .In the experimental investigation, an apparatus is set up to measure the velocity and temperatures around the heat exchanger. The results show that there is an effect for using vortex generators on heat transfer. Also, heat transfer depends on the shape and location. The circular is found to be the best shape for enhancing heat transfer at location [Xm=0.5 cm] distance before heat exchanger is the best location for enhancing heat transfer. The square is the best shape for enhancing heat transfer at location [Xm=2.5 cm] distance before heat exchanger is the best location for enhancing heat transfer.The results of flow over heat exchanger with vortex generators are compared with the flow over heat exchanger without vortex generators. Heat transfer around heat exchanger is enhanced (56%, 50%, 36%) at location (X=0.5, 1.5, 2.5cm) respectively by using circular vortex generators without turbulator and heat transfer around heat exchanger is enhanced (39%, 42%, 51%) at location (X=0.5, 1.5, 2.5cm) respectively by using square shape vortex generators without turbulator.
format article
author Wisam Abed Kattea
author_facet Wisam Abed Kattea
author_sort Wisam Abed Kattea
title An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
title_short An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
title_full An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
title_fullStr An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
title_full_unstemmed An Experimental Study on the Effect of Shape and Location of Vortex Generators Ahead of a Heat Exchanger
title_sort experimental study on the effect of shape and location of vortex generators ahead of a heat exchanger
publisher Al-Khwarizmi College of Engineering – University of Baghdad
publishDate 2012
url https://doaj.org/article/3c8ee9cdfd5f4cfaac2cb8335923f9a1
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