A Comprehensive Review of Heat Transfer Enhancement in Fins: A Comparative Analysis of Straight, Annular, and Perforated Geometries

Abstract

This paper presents a comprehensive review of heat transfer fin designs for effective thermal management, synthesizing findings from multiple studies on straight, annular, and perforated geometries. The analysis reveals two primary conclusions. First, for annular fins, a triangular profile is the most effective and economical design, providing superior heat transfer while generating the lowest thermal stresses. Perforated fins consistently outperform solid fins, with the size of the perforations proving to be a more critical optimization factor than their shape or pattern. Overall, the review highlights that advanced, optimized geometries are essential for maximizing thermal efficiency.