HEAT TRANSFER ENHANCEMENT USING FINS WITH PERFORATION: A REVIEW

Extended surface s called as fin s a passive technique is used for enhancing heat transfer between surface and surrounding fluid. They find applications not only in electronic equipments but also in important areas like electrical transformers, heat exchanger, chemical processing system etc. As proper heat dissi pation results in saving of power and reduces chances of overheating problems, perforation are made on the fins. Perforated fin improves heat transfer rate compared to solid fin by varying the different parameter like shape of perforation, diameter of perf oration and number of perforation. This paper focuses on studies which deal with heat transfer enhancement by using perforated fin.