Publication

Abstract : Fins significantly enhance the surface that may be employed to release heat into the fluid from a heat source and are used in CPUs, radiators and other electric motors. Annular fins possess multiscale uses in engineering and industry, often used as heat exchange devices. This study uses radial annular fins to investigate the heat emission rates from the surface to the environment. In addition, the modelling considers variables like heat radiation and permeable media. The heat transference mechanism is represented by the balanced equations and is reduced to a dimensionless form. The impact of non-dimensional parameters on the fin’s thermal gradient is shown by visual analysis. The inner radius and thickness of a fin have a major impact on how quickly heat is transferred. The analysis determined that an economically feasible alternative was a spherical, rectangular profile fin with an inner radius of 0.2 cm and a thickness of 0.1 cm. Furthermore, response surface methodology (RSM) and sensitivity analysis emphasise the importance of heat transfer rate. The results show that increasing the radiative and porous characteristics increases the rate of heat transfer. This enhancement might be due to heat radiation at the fin surface.