Numerical and experimental investigations of heat transfer enhancement in a duct heater with different areas of vortex generators
Other Title(s)
محاكاة نظرية و عملية لتأثير المساحات لمولدات الدوامات على تحسين انتقال الحرارة في مجرى في داخلة مسخنات كهربائية
Joint Authors
al-Khishali, Qutaybah Jamil Mahdi
Awad, Afrah Turki
Source
al-Nahrain Journal for Engineering Sciences
Issue
Vol. 20, Issue 1 (31 Mar. 2017), pp.88-104, 17 p.
Publisher
Nahrain University College of Engineering
Publication Date
2017-03-31
Country of Publication
Iraq
No. of Pages
17
Main Subjects
Abstract EN
Numerical and experimental investigations were carried out on the effect of the vortex generators on the flow field and heat transfer from duct heaters.
The flow Reynolds number ranging from 32000 In the numerical investigation, Fluent package (6.3) was used to solve the steady, (3- D), continuity, momentum and energy equations where the standard (k-ε) model was used to remedy the turbulent effects. Theoretical results show that the presence of VGs would save 27% of heaters power. The effects of two areas of VGs were looked at a small circle cross section vortex generator (SCCSVG) and a big circle cross section vortex generator (BCCSVG) of similar shapes (whereR BCCSVG R SCCSVG = 1.5). The experimental results showed that there were an enhancement in heat transfer with the presence of VGs and heat transfer depends on VGs’ areas. The BCCSVG was the better one of enhancing heat transfer by (2.76%-4.11%). Additionally, the increase of area of VGs, number of rows for VGs and the distance between each two rows of VGs and the heaters are the most effective parameters in improving the performance of heat transfer
American Psychological Association (APA)
Awad, Afrah Turki& al-Khishali, Qutaybah Jamil Mahdi. 2017. Numerical and experimental investigations of heat transfer enhancement in a duct heater with different areas of vortex generators. al-Nahrain Journal for Engineering Sciences،Vol. 20, no. 1, pp.88-104.
https://search.emarefa.net/detail/BIM-849087
Modern Language Association (MLA)
Awad, Afrah Turki& al-Khishali, Qutaybah Jamil Mahdi. Numerical and experimental investigations of heat transfer enhancement in a duct heater with different areas of vortex generators. al-Nahrain Journal for Engineering Sciences Vol. 20, no. 1 (2017), pp.88-104.
https://search.emarefa.net/detail/BIM-849087
American Medical Association (AMA)
Awad, Afrah Turki& al-Khishali, Qutaybah Jamil Mahdi. Numerical and experimental investigations of heat transfer enhancement in a duct heater with different areas of vortex generators. al-Nahrain Journal for Engineering Sciences. 2017. Vol. 20, no. 1, pp.88-104.
https://search.emarefa.net/detail/BIM-849087
Data Type
Journal Articles
Language
English
Notes
Record ID
BIM-849087