1. Experimental Investigations on Heat Sink Circular Pin Fins and Conical Spines Subjected to Natural Convection

Experiments had been accomplished on natural convection heat transfer from circular pin fin heat sinks subjected to the effect of its geometry, heat flux and orientation. Pin fin or spines cooling configurations have long been of interest within the vicinity of cooling of turbines, automobile engines and different devices because of their doubtlessly excessive heat transfer characteristics and excessive surface area density, in addition to their structural benefits. The pin fins or spines function as tabulators to provide excessive heat transfer rate; however, their geometric association has to be optimized to avoid excessive friction loss. Experimental checks had been carried out to investigate the consequences heat transfer rate and overall heat transfer rate for sideward orientation and upward orientation of heat sink with circular pin fin array and conical spine array.