An experimental study of air flow and heat transfer over in-line flat tube bank

An experimental study has been made to investigate heat transfer and air flow around flat tube of in-line flat tube banks with laminar forced convection. Measurements were conducted for sixteen tubes in the flow direction;four tubes in the rows, the three air velocity (0.6, 0.8 and 1.0 ms-1) and Rey...

Full description

Bibliographic Details
Main Authors: Tahseen, Tahseen Ahmad, M., Ishak, M. M., Rahman
Format: Article
Language:English
Published: Universiti Malaysia Pahang 2014
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/3914/
http://umpir.ump.edu.my/id/eprint/3914/4/P040.pdf
_version_ 1848817321221554176
author Tahseen, Tahseen Ahmad
M., Ishak
M. M., Rahman
author_facet Tahseen, Tahseen Ahmad
M., Ishak
M. M., Rahman
author_sort Tahseen, Tahseen Ahmad
building UMP Institutional Repository
collection Online Access
description An experimental study has been made to investigate heat transfer and air flow around flat tube of in-line flat tube banks with laminar forced convection. Measurements were conducted for sixteen tubes in the flow direction;four tubes in the rows, the three air velocity (0.6, 0.8 and 1.0 ms-1) and Reynolds number are ReDh = 527, 703 and 880,where Dh isthe hydraulic diameter of the tube. The total heat flux supplies in all tubes are 967.92, 2258.48 and 3629.70 Wm-2, respectively. The study results indicate that the average Nusselt number of all flat tubes has increased 23.7%-36.7% with Reynolds numbers varying from 527 to 880 at the fixed heat flux; also averageNusselt number has increased11.78% - 23.75% at the heat flux are varying 967.92, 2258.48 and 3629.70 Wm-2, respectively at the Reynolds number Re = 703. In addition, the pressure drop decreaseswith the increase of Reynolds number. The Nusselt number-Reynolds number correlation was found to be 2 1 C Nu  C Re , the correlation yielded good predictions of the measured data with the mean error R2 = 0.992.
first_indexed 2025-11-15T01:19:54Z
format Article
id ump-3914
institution Universiti Malaysia Pahang
institution_category Local University
language English
last_indexed 2025-11-15T01:19:54Z
publishDate 2014
publisher Universiti Malaysia Pahang
recordtype eprints
repository_type Digital Repository
spelling ump-39142018-01-30T02:38:35Z http://umpir.ump.edu.my/id/eprint/3914/ An experimental study of air flow and heat transfer over in-line flat tube bank Tahseen, Tahseen Ahmad M., Ishak M. M., Rahman TJ Mechanical engineering and machinery An experimental study has been made to investigate heat transfer and air flow around flat tube of in-line flat tube banks with laminar forced convection. Measurements were conducted for sixteen tubes in the flow direction;four tubes in the rows, the three air velocity (0.6, 0.8 and 1.0 ms-1) and Reynolds number are ReDh = 527, 703 and 880,where Dh isthe hydraulic diameter of the tube. The total heat flux supplies in all tubes are 967.92, 2258.48 and 3629.70 Wm-2, respectively. The study results indicate that the average Nusselt number of all flat tubes has increased 23.7%-36.7% with Reynolds numbers varying from 527 to 880 at the fixed heat flux; also averageNusselt number has increased11.78% - 23.75% at the heat flux are varying 967.92, 2258.48 and 3629.70 Wm-2, respectively at the Reynolds number Re = 703. In addition, the pressure drop decreaseswith the increase of Reynolds number. The Nusselt number-Reynolds number correlation was found to be 2 1 C Nu  C Re , the correlation yielded good predictions of the measured data with the mean error R2 = 0.992. Universiti Malaysia Pahang 2014-07-01 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3914/4/P040.pdf Tahseen, Tahseen Ahmad and M., Ishak and M. M., Rahman (2014) An experimental study of air flow and heat transfer over in-line flat tube bank. International Journal of Automotive and Mechanical Engineering (IJAME), 9. pp. 1487-1500. ISSN 1985-9325(Print); 2180-1606 (Online). (Published) http://dx.doi.org/10.15282/ijame.9.2014.1.0123
spellingShingle TJ Mechanical engineering and machinery
Tahseen, Tahseen Ahmad
M., Ishak
M. M., Rahman
An experimental study of air flow and heat transfer over in-line flat tube bank
title An experimental study of air flow and heat transfer over in-line flat tube bank
title_full An experimental study of air flow and heat transfer over in-line flat tube bank
title_fullStr An experimental study of air flow and heat transfer over in-line flat tube bank
title_full_unstemmed An experimental study of air flow and heat transfer over in-line flat tube bank
title_short An experimental study of air flow and heat transfer over in-line flat tube bank
title_sort experimental study of air flow and heat transfer over in-line flat tube bank
topic TJ Mechanical engineering and machinery
url http://umpir.ump.edu.my/id/eprint/3914/
http://umpir.ump.edu.my/id/eprint/3914/
http://umpir.ump.edu.my/id/eprint/3914/4/P040.pdf