Experimental Investigation of Heat Transfer Improvement with Modified Twisted Plates in a Water Passing Pipe Doped with Graphene Nanoparticles


Dağdevir T. (Executive), Özceyhan V.

TUBITAK Project, 2020 - 2021

  • Project Type: TUBITAK Project
  • Begin Date: April 2020
  • End Date: April 2021

Project Abstract

Due to the presence of heat exchangers in many engineering applications, the increase in the efficiency of the heat exchangers will lead to an increase in the efficiency of the applied engineering system. In addition, with the increase in the efficiency of the heat exchangers, more economical and applicable systems can be designed with the savings in the amount of energy consumed, the increase in the amount of useful energy obtained and/or the decrease in the dimensions and weights of the heat exchangers. In this context, researchers carry out various studies in order to increase the thermal efficiency of heat exchangers. While the applications of increasing the efficiency of heat exchangers are generally carried out by adding turbulence increasing elements into the pipe, with the development of nano technology in recent years, nanoparticle reinforcement is realized in the basic fluid used. In this context, with this project, heat transfer will be tried to be improved by placing a modified bent plate inside a heat exchanger tube and adding Graphene nanoparticles to the water, which is the basic fluid. The elements placed in the pipe basically increase the turbulence, and the addition of nanoparticles improves the heat transfer by improving the thermal conductivity of the fluid used. Bent plates with holes and pits to be drilled on the edges will be used. In this way, the thermal boundary layer in the pipe flow will be broken down more seriously and heat transfer will be improved. In addition, 2000 W/mK Graphene will be used within the scope of the nanoparticle project used in the thesis.