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CFD Analysis of Double Pipe Heat Exchanger with Baffles using CuO/Water Nanofluids

  • G Ragothaman Assistant Professor, Department of Mechanical Engineering, Velammal Institute of Technology, Chennai-601204
  • T Mothilal Professor, Department of Mechanical Engineering, Velammal Institute of Technology, Chennai-601204.
  • S.P Dhanush UG Department of Mechanical Engineering, Velammal Institute of Technology, Thiruvallur.
  • V.E GnanaVignesh UG Department of Mechanical Engineering, Velammal Institute of Technology, Thiruvallur.
  • K Sasikumar UG Department of Mechanical Engineering, Velammal Institute of Technology, Thiruvallur.
  • N.P. Derrick UG Department of Mechanical Engineering, Velammal Institute of Technology, Thiruvallur.

Abstract

Nanofluids have higher thermal conductivity when compared with other conventional fluids, which helps in increasing the heat transfer rate. In this experiment, the double pipe heat exchanger’s performance is determined by allowing hot fluid to flow through outer pipe and cold fluid flows in inner pipe. In this design, we have created baffles on the inner surface of the inner pipe, to cause disturbance in the path of fluids which will create turbulence in the flow. These turbulences will resist the settling down of nanoparticles along the length of the pipe during long runs. The analysis is carried out for various concentrations of CuO in the base fluid(water). The flow and temperature distribution inside the tube is done and studied using Computational Fluid Dynamics(by ANSYS Fluent software).This work determines the enhancement in heat transfer rate, better performance of heat exchanger using Cuonanofluid and its overall heat transfer co-efficient.

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