Investigation of Shell and Tube Heat Exchanger with Nano Fluid using ANSYS

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IJSTE - International Journal of Science Technology & Engineering | Volume 2 | Issue 06 | December 2015 ISSN (online): 2349-784X

Investigation of Shell and Tube Heat Exchanger with Nano Fluid using ANSYS V. Ajaykumar PG Scholar Department of Thermal Engineering RVS College of Engineering and Technology, Coimbatore – 641402

T. Sudhakar Assistant Professor Department of Mechanical Engineering RVS College of Engineering and Technology, Coimbatore – 641402

R. Titusjames Assistant Professor Department of Mechanical Engineering RVS College of Engineering and Technology, Coimbatore – 641402

U. Sathishkumar Assistant Professor Department of Mechanical Engineering RVS College of Engineering and Technology, Coimbatore – 641402

Abstract The objective of this project is to analyze net heat transfer rate in shell and tube heat exchanger using nano particle suspended in different base fluids such as Water and Ethylene glycol. The thermophysical properties of naofluid mixture like density, thermal conductivity, specific heat, viscosity and density were predicted by analytical method. Then, the shell and tube heat exchanger using aluminium metal is created using CATIA and flow and thermal analysis is created using ANASYS. Keywords: Shell And Tube HeX, Flow Rate,Al2O3 ANSYS14.5 ________________________________________________________________________________________________________

I. INTRODUCTION Heat exchangers have a huge application in various industrial sectors such as oil refining, chemical industries, power plants and refrigeration units. Among the various types of heat exchangers, shell and tube heat exchangers are most widely used about 3540%. The heat transfer rate of heat exchangers can be enhanced by two techniques active and passive methods. In this work, I am going to use one of the passive technique that is addition of nanoparticle to the working fluid.

II. SELECTION OF MATERIAL Aluminium After iron, aluminium is now the second most widely used metal in the world. It is well known for its low density and for its ability to resist corrosion due to the phenomenon of passivation. It has tensile strength between 70 -100 Mpa. Unlike other metals aluminium doesn’t become brittle at low temperatures. But its strength decreases at temperature above 100oC. High thermal conductivity, Good corrosion resistance. High reflectivity, Less weight. PROPERTY Thermal conductivity Melting point Density

VALUES 237 W/(m· K) 933.47 K(660.32 °C, 1220.58 °F) 2.70 g/cm3

Nanofluid Nanofluids are fluids that contain (1-100nm) sized particles. In order to enhance the thermal characteristics of convectional fluids, These nanoparticles are suspended in the base fluid by various techniques. Two-step is most commonly used for preparing nanofluid. Base Fluid Base fluids are convectional fluids that we used commonly in various industries. I have used the Water and Ethylene glycol as base fluids. The properties of base fluids are listed below, PROPERTIES Thermal conductivity Specific heat

ETHYLENE GLYCOL 995 w/m-k 4178 J/kg-k

WATER 995 kg/m3 4178 J/kg-k All rights reserved by www.ijste.org

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