Pages: 21 to 30
Abdullah H. M. AlEssa
Finite element method (FEM) is among important numerical techniques used in thermal engineering analyses. Usually elements are sub-divided uniformly in FEM to obtain temperature distribution in a fin or plate. In this paper heat transfer dissipation from a horizontal rectangular fin embedded with hexagonal perforations is computed numerically using one dimensional finite element technique. The orientation of the hexagonal perforations makes two sides of it parallel to the base and tip of the fin. The body of the fin is discretized into the sufficient finite elements. The number of these elements can be altered as required according to the automatic mesh generation. The heat dissipation of the perforated fin is computed and compared with that of the solid one of the same dimensions and same thermal properties. The comparison refers to acceptable results and heat dissipation enhancement due to certain perforation.