Record Details

Experimental Investigation of Natural Convection into a Horizontal Annular Tube with Porous Medium Effects

Journal of Engineering


Field	Value

Title	Experimental Investigation of Natural Convection into a Horizontal Annular Tube with Porous Medium Effects

Creator	Shehab, Saad Najeeb

Description	In 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.

Publisher	College of Engineering \| University of Baghdad

Date	2016-12-01

Type	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article

Format	application/pdf

Identifier	http://joe.uobaghdad.edu.iq/index.php/main/article/view/114

Source	مجلة الهندسة; مجلد 22 عدد 12 (2016): Journal of Engineering (Eng. J.); 103-117 Journal of Engineering; Vol 22 No 12 (2016): Journal of Engineering (Eng. J.); 103-117 2520-3339 1726-4073

Language	eng

Relation	http://joe.uobaghdad.edu.iq/index.php/main/article/view/114/101

Rights	Copyright (c) 2016 Eng. J.