EFFECT OF DIFFERENT GEOMETRY AND INCLINATION ANGLE ON HEAT TRANSFER IN NATURAL CONVECTION

In this, we will compare the geometries (cylindrical & rectangular) for different inclination angle with the same hydraulic diameter. Natural convection is a heat transport mechanism, in which the fluid motion is by naturally means no external source is required. The temperature gradient is occurring due to density difference. Forced convection is a heat transport mechanism in which fluid motion is by an externally. It is one of the most important heat transfers mechanism in which maximum amounts of heat energy can be transferred very efficiently. We compare by calculating average heat transfer coefficient and Nusselt number for both geometries, for inclination angle (i.e. 0, 15â°, 30â°, 45â°, 60â°, 750, 90â°). It is concluded that average Nusselt number, for angles (15â°, 30â°, 60â°, 75â°, 90â°) shows maximum heat rate for cylindrical test section and for angle (45â°) shows maximum heat rate for the square test section and also we found that the heat transfer coefficient rate increases with inclination angle in both cases https://journalnx.com/journal-article/2015046