Simulation and Analysis of Double Pipe Heat Exchanger

Abstract

A heat exchanger is a engineering device used for efficient heat transfer from one fluid to another at different temperatures and thermal in contact. Thermal properties of fluids play a significant role in various cooling and heating uses. Traditional fluids are of low thermal conductivity, so researchers are tried to enhance thermal conductivity by adding nano-particles. The model of double pipe heat exchanger was develop by using ANSYS workbench. Al2O3 mixed with water as a base fluid for analyzed their performance in double pipe heat exchanger. Al2O3 is a excellent material for heat transfer enhancement because, it has better physical as well as chemical properties. In this paper, we performed CFD analysis on double pipe heat exchanger using ANSYS FLUENT software by varying the concentrations of nano-particle (0.5%, 1%, 2%) in water. CFD analysis on double pipe heat exchanger by using Al2O3/water (nano-fluid) as cold fluid and water as a hot fluid. It is observed that nano-fluid with 2% concentration having more overall heat transfer coefficient.