NATURAL CONVECTION HEAT TRANSFER IN A VERTICAL CONCENTRIC ANNULUS
محتوى المقالة الرئيسي
الملخص
Experiments were carried out to study the local and average heat transfer by natural convection in
a vertical concentric cylindrical annulus. The experimental setup consists of an annulus has a radius ratio
of 0.555 and inner cylinder with a heated length 1.2m subjected to the constant heat flux while the outer
cylinder is subjected to the ambient temperature. The investigation covers heat flux range from 58.2
W/m2
to 274.31 W/m2
. Results show an increase in the natural convection as heat flux increases leads to
an improve in the heat transfer process. An empirical equation of average Nusselt number as a function of
Raylieh number was deduced .
تفاصيل المقالة
كيفية الاقتباس
تواريخ المنشور
المراجع
Akeel Abdullah Mohammed An Investigation into laminar combined convection heat transfer through concentric annuli. Ph. D. Thesis, University of Technology, Mech. Eng. Dept., 2005.
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