Experimental Study of Steady State Natural Convection Heat Transfer from Cylindrical Heater in a Vented Enclosure

Keywords: Heat Transfer, Natural Convection, inclined cylinder.

Abstract

Experimental study of steady state natural convection heat transfer from vertical, horizontal and inclined heated cylinder with different cross sectional area situated in a vented enclosure, opened from the top and the bottom is performed. The experiments results are obtained for the range of Rayleigh number (3.47 × 103 to 5.66 × 104), Nusselt number (5.54 - 23.48) and aspect ratio are (11<L/D<22) with ten angles of inclination θ, (0o,10o,20o,30o,40o,50o,60o,70o,80o,90o) in laminar condition. The experimental data is expressed in dimensionless groups and a single correlation for Nusselt number as a function of Rayleigh number for each angle of inclination to each aspect ratio is found. The data is correlated to a formula that takes into consideration the above mentioned variables. The heat transfer was found to depend on diameter, length and angle of inclination. And a general correlation between the Nusselt number and Raylieh number is obtained from the experimental work.

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References

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Published
2016-05-26
How to Cite
“Experimental Study of Steady State Natural Convection Heat Transfer from Cylindrical Heater in a Vented Enclosure” (2016) Zanco Journal of Pure and Applied Sciences, 28(2). doi: 10.21271/zjpas.v28i2.523.
Section
Articles