Convection Heat Transfer from Heated Thin Cylinders Inside a Ventilated Enclosure

Experimental study was conducted to determine the effect of velocity axial fan, outlet vent height, position, area, and aspect ratio (h/w) ventilated enclosure on convection heat transfer. Rectangular wooden having top front transparent wall made up Perspex for visualization, internal physical dimensions box were 200 mm × 400 mm. Inlet at bottom while vents side wall. Electrically heated cylindrical source 6.1 slenderness fabricated hanged centre enclosure. To calculate transfer rates, thermocouples attached inner surface with silica gel. Heat operated constant flux in order quantify air It observed that average Nusselt number increased from 68 216 by changing 0 3.34 m/s modified Grashof i.e. 5.67E+09. While variation height did not affect forced region. However, decreased 5% position or 50% reduction area during convection. Mean rise temperature 8.19 K 9.40 increasing 1.5 2 operating 541.20 w/m2.