“CFD investigation of Heat transfer characteristics of heat exchanger tube with different shape inserts"

Abstract

In the present study,the transfer of heat is an order of thermal engineering and an important phenomena of heat exchanger system. The Phenomena of heat transferchangedmany times into various procedure such as thermal phase changes. The phase changes are classified into thermal convection, thermal conduction and radiation. In this paper thermal conduction and convection phase changes to improve thermal performance and its capacity of flow of heat from circulation flow zone of cooling and heating area of design model.. The length of the cutting cone is denoted by l = 18 mm. The thickness of the cutting cone t = 2 mm, pitch variation of the cutting cone P = 40 - 120 mm. The height of the object is measured in millimeters as cutting cone vortex = 52, and the variation in the Reynolds number Re = 4000 - 16,000. All the results have been investigated by CFD software program which is used maximally for fluid related problemsThe maximum thermal efficiency is observed ?_max = 2.012881 at P = 80 mm, P/D_h = 1.33, N = 2, Re = 16,000, and l = 18 mm.