Procedure for CFD Analysis of a Triple Concentric Tube Heat Exchanger using ANSYS

Abstract

Present study will be about the procedure of CFD analysis of a triple concentric heat exchanger. Computational Fluid Dynamics is a growing phenomena in the field of design and heat transfer studies. CFD software, ANSYS Workbench is a one used in a phenomenal way throughout various industries that have their work in heat transfer processes. Here, the specific focus will be on the analysis of the fluid flow and heat transfer in a Triple Concentric Tube Heat Exchanger (TCTHE) which has three different fluids, fluid 1 running through the innermost tube, fluid 2 running through the intermediate tube (i.e. inner annulus) and fluid 3 running through the outermost tube (i.e. outer annulus). The software used for CFD analysis is ANSYS. CFD Analysis is carried out in following steps: 2.1 Modelling 2.2 Meshing 2.3 Analysis. The method used is SIMPLE algorithm for this analysis. The flow analysed was co current parallel flow with N- H- C arrangement (Normal water in the innermost tube, Hot in the intermediate and Cold at the outermost tube). Results are presented in graphical as well as tabular form.