CFD investigation on heat transfer enhancement in shell and tube heat exchanger using Graphene Oxide

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International Research Journal of Engineering and Technology (IRJET)

e-ISSN: 2395-0056

Volume: 10 Issue: 10 | Oct 2023

p-ISSN: 2395-0072

www.irjet.net

CFD investigation on heat transfer enhancement in shell and tube heat exchanger using Graphene Oxide Nano Fluid Purushottam Prasad1, Ajay Singh2, Ashish Verma3 1MTech Student, Dept. of Mechanical Engineering, Radharaman Institute of Technology and Science, Bhopal, M.P.,

India

2Professor, Dept. of Mechanical Engineering, Radharaman Institute of Technology and Science, Bhopal, M.P., India

Dept. of Mechanical Engineering, Radharaman Institute of Technology and Science, Bhopal, M.P., India ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract - The present study focuses on the computational management. Many scientists throughout the world are fluid dynamics (CFD) investigation of heat transfer interested in using nanofluids to address these enhancement in a shell and tube heat exchanger using problems. A nanofluid can frequently be produced Graphene Oxide (GO) nanofluid. The aim is to evaluate the specifically to meet a demand and function as a flexible impact of incorporating GO nanofluid on the rate of heat cooling solution, adjusting to the specifications of a transfer and convective heat transfer coefficient within the given system. In essence, nanofluids have the potential heat exchanger. The research demonstrates a significant to develop into the first intelligent/adaptive coolant in improvement in heat transfer characteristics, with a rate of the world [1,2]. Choi and Eastman [3] first used the heat transfer increment of 42% and a convective heat transfer term "nanofluids," which are multiphase systems coefficient increase of 62%. The study begins with the development of a three-dimensional computational model of a having a stable colloidal suspension of nanometershell and tube heat exchanger using commercially available sized particles and a base matrix host fluid. The host software. The GO nanofluid, consisting of graphene oxide fluid and nanoparticles can be synthesised in one step nanoparticles dispersed in a base fluid, is introduced into the along with the nanofluid, or they can be created heat exchanger. The governing equations of fluid flow and separately and combined in two steps [4]. Since its heat transfer, including the Navier-Stokes equations and inception, nanofluid have been the subject of intense energy equation, are solved numerically using appropriate research because of their frequently abnormal and boundary conditions. Simulation results indicate that the distinctive thermal transport properties. In terms of incorporation of GO nanofluid leads to enhanced heat transfer the scientific insights acquired from their study and the performance compared to traditional fluids. The improved thermal conductivity of the GO nanofluid facilitates more practically limitless industrial and commercial uses, efficient heat transfer between the hot and cold fluids flowing nanofluid have also shown to be extremely valuable through the heat exchanger. The presence of nanoparticles [5,6]. Cryogenic nanofluids are an area of nanofluid disrupts the thermal boundary layer and enhances convective science that has received relatively little scientific heat transfer by promoting better mixing and increased attention. Cryogenic nanofluids use nanometer-sized contact area between the fluid and the heat transfer surface. particles and are comparable to conventional The obtained results demonstrate that the use of GO nanofluid nanofluids [4,7]. Because they combine the high in shell and tube heat exchangers can significantly enhance temperatures associated with cryogenics and the the overall heat transfer efficiency. This finding has flexible thermal transport properties of nanofluids, implications for various industrial applications, including cryogenic nanofluids have attracted a lot of attention. HVAC systems, power plants, and chemical processes, where efficient heat exchange is crucial. The research findings As a result, these nanofluids exhibit improved provide valuable insights for the design and optimization of thermophysical properties and hold great potential for heat exchangers to achieve higher performance and energy the creation of next-generation cryogenic fluids. savings by employing graphene oxide nanofluids. Further Conventional nanofluids are fluids or fluid mixtures experimental validation of these results is recommended for that may contain one or more types of dispersants, real-world implementation. nanoparticles, or other additives. [8,9]. The variety of nanofluids is quite astounding, and in fact, a new Key Words: Heat Exchanger, Nanofluid, Convective nanofluid can be made by mixing together a few Heat Transfer Coefficient, helical Coil, CFD Analysis distinct base fluids or nanoparticles. Nanofluids can be created in a variety of ways, and even minor alterations 1.INTRODUCTION to those methods can have a big impact on the final product. [8]. The efficiency of the heat transfer Any technology that deals with high power and tiny applications needs to be improved because they either size is very concerned with heat removal and 3Professor,

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