APPLICATIONS OF CYLINDRICAL AND RADIAL HEAT SINKS FOR COOLING OF LED LIGHT BULBS: A REVIEW

Fin arrays on horizontal and vertical surfaces are used in variety of engineering applications to dissipate heat to the surroundings. Studies of heat transfer and fluid flow associated with such arrays are therefore of considerable engineering significance. The main controlling variables generally available are the orientation and the geometry of the fin arrays. The purpose of the present study is to study the recent literature available for the use of the heat sinks for the heat dissipation from LED light bulbs. The review of the latest research papers was carried out and reported here. It is found that more thrust is needed to be given on the reduction of the weight of these heat sinks. So it is proposed to carry out more research in this area. It is noticed that, the rectangular plate finned heat sinks are showing better performance with the area removed in the form of notches. So it is required to compare the performance of the finned arrays under notched and un-notched conditions.