Experimental investigation of natural convection into a horizontal annular tube with porous medium effects
Other Title(s)
تقصي عملي للحمل الطبيعي داخل أنبوب حلقي افقي مع تأثير الوسط المسامي
Author
Source
Issue
Vol. 22, Issue 12 (31 Dec. 2016), pp.103-117, 15 p.
Publisher
University of Baghdad College of Engineering
Publication Date
2016-12-31
Country of Publication
Iraq
No. of Pages
15
Main Subjects
Abstract EN
I n this work, an experimental investigation has been done for heat transfer by natural-convection through a horizontal concentric annulus with porous media effects.
The porous structure in gap spacing consists of a glass balls and replaced by plastic (PVC) balls with different sizes.
The outer surface of outer tube is isothermally cooled while the outer surface of inner tube is heated with constant heat flux condition.
The inner tube is heated with different supplied electrical power levels.
Four different radius ratios of annulus are used.
The effects of porous media material, particles size and annulus radius ratio on heat dissipation in terms of average Nusselt number have been analyzed.
The experimental results show that the average Nusselt number increases with increasing annulus radius ratio and particle diameter for same porous media material.
Furthermore, two empirical correlations of average Nusselt number with average Rayleigh number for glass and PVC particles are developed.
The present experimental results are compared with previously works and good correspondence is showed.-
American Psychological Association (APA)
Shihab, Sad Najib. 2016. Experimental investigation of natural convection into a horizontal annular tube with porous medium effects. Journal of Engineering،Vol. 22, no. 12, pp.103-117.
https://search.emarefa.net/detail/BIM-722875
Modern Language Association (MLA)
Shihab, Sad Najib. Experimental investigation of natural convection into a horizontal annular tube with porous medium effects. Journal of Engineering Vol. 22, no. 12 (Dec. 2016), pp.103-117.
https://search.emarefa.net/detail/BIM-722875
American Medical Association (AMA)
Shihab, Sad Najib. Experimental investigation of natural convection into a horizontal annular tube with porous medium effects. Journal of Engineering. 2016. Vol. 22, no. 12, pp.103-117.
https://search.emarefa.net/detail/BIM-722875
Data Type
Journal Articles
Language
English
Notes
Includes appendix : p. 111-117
Record ID
BIM-722875