Innovative design of perforated and non-perforated fin is a prime importance of thermal system to enhance the rate of heat transfer. The traditional and innovative designs of fins used in different applications such as IC engines, heat exchangers, electronics heat sinks, electric motors, etc. The main aim of this article is to present a comprehensive review on the comparative thermal performance analysis between solid and perforated fins. Also focused on heat transfer analysis of different types of fins with various designs and dimensions, also studied free and forced convection heat transfer with correlations of dimensionless numbers. Researchers emphasized that the rate of heat transfer of perforated fins is greater than the conventional fins. The review concluded with recommendations that recently developed perforated fins are the best choice than solid fins for enhancing the heat transfer rate of thermal systems. Also the concept of perforated fins can be applied to an electric motor/machine in order to enhance the heat transfer rate and ultimately its life and efficiency.
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