Performance of Annular Fin with Different Profile Subjected to Heat Transfer Coefficient by using FEA

Abstract

Performance of annular ?ns of di?erent pro?les subject to heat transfer coe?cient is investigated in this paper. The concept of heat transfer through annular fin of different profiles is one of the methods for improving heat transfer rate by natural convection in heat exchangers. Annular fins are used in heat exchange devices to enhance the heat transfer rate. Temperatures vary with the geometry of the fins and along the fluid flow direction. Temperature changes according to its geometry and profile of fins. The heat transfer from the ?n is dominated by natural convection, the analysis of ?n performance based on locally variable heat transfer coe?cient would be of primer importance. The local heat transfer coe?cient as a function of the local temperature has been obtained using the available correlations of natural convection for plates.By using the ANSYS software find the temperature profile and its effect on different profile of annular fins and find the maximum heat transfer theoretically.Results have been obtained and presented in a table for annular ?ns of hyperbolic, triangular, concave parabolic and convex parabolic pro?les. Temperature distribution at different sections and total heat flow is estimated for the finned tube with fins of triangular profile, concave and convex parabolic and hyperbolic profile. A comparison has been made among finite element analysis.