International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 03 | Mar 2024
p-ISSN: 2395-0072
www.irjet.net
Analysis of Shell and Tube Heat Exchanger using CFD Having Baffle Plates Attached and Nanofluid as a Cold Fluid: A Review Aman Kumar1, Ajay Singh2, Nitin Barodia3 1 Scholar, Department of Mechanical Engineering, Radharaman Institute of Technology and Science, Bhopal, M.P.,
India
2 Prof. and Head, Department of Mechanical Engineering, Radharaman Institute of Technology and Science,
Bhopal, M.P., India
3Assistant Professor, Department of Mechanical Engineering, Radharaman Institute of Technology and Science,
Bhopal, M.P., India ---------------------------------------------------------------------***--------------------------------------------------------------------raising the overall pressure drop across the heat exchanger, Abstract - Shell and tube heat exchangers play a pivotal role
this arrangement has attracted a lot of interest. Nanofluids have been a game-changing development in the realm of enhancing heat transmission in recent years. Traditional base fluids, such as water, oil, and ethylene glycol, are mixed with nanoparticles, such as metals, oxides, and carbon-based compounds. A number of notable thermal qualities, including greater thermal diffusivity, stronger convective heat transfer coefficients, and increased thermal conductivity, are brought about by the introduction of nanoparticles in base fluids. These special characteristics offer a fascinating chance to revolutionize heat exchanger design by greatly increasing heat transfer rates while keeping pressure losses under control. Baffle plates and nanofluids have the enormous potential to completely transform the thermal performance of shell and tube heat exchangers, addressing a variety of industrial applications from power generation to renewable energy systems. Although the individual contributions of baffle plates and nanofluids have been extensively studied, there is still much to learn about the synergistic benefits of their simultaneous integration. The objective of this review paper is to present a thorough examination of computational fluid dynamics (CFD) research performed on shell and tube heat exchangers using baffle plates on the tube side and nanofluids as the cold fluid. We intend to identify key elements impacting heat transfer enhancement and throw light on the possible difficulties and opportunities connected with this innovative heat exchanger configuration by synthesizing and critically assessing the most recent research and findings in this sector. This review paper is organized as follows: The essential concepts of shell and tube heat exchangers will be presented in detail, with an emphasis on their design and operation, in the parts that follow. The relevance of baffle plates in altering the fluid dynamics within the tubes and resulting in improved heat transmission characteristics will next be discussed in detail. In addition, a thorough description of nanofluids will be provided, emphasizing the thermal and dispersion characteristics that are crucial for understanding how they affect heat exchanger performance. The various baffle plate layouts used in conjunction with nanofluids will then be examined, with an analysis of their impact on pressure drop,
in numerous industries, facilitating efficient heat transfer between fluids at different temperatures. This review explores the integration of baffle plates and nanofluids to optimize heat exchanger performance. Baffle plates strategically placed in tube sides accelerate heat transfer by enhancing fluid mixing and mitigating stagnant areas, while nanofluids, a blend of traditional fluids and nanoparticles, elevate thermal conductivity for superior heat dissipation. Computational Fluid Dynamics (CFD) investigations scrutinized diverse baffle plate configurations and nanofluid implementations in double tube heat exchangers, unveiling promising enhancements in heat transfer and fluid flow characteristics. Higher Reynolds numbers in cold fluids bolstered heat transfer metrics, albeit with performance index fluctuations. The synergy between optimized baffle designs and nanofluids showcased remarkable improvements in heat exchanger efficiency, holding substantial promise for applications in power generation, chemical processing, and refrigeration systems. Key Words: Heat exchanger, Baffle Plates, Nanofluid, CFD, Thermal properties, Rate of Heat Transfer
1.INTRODUCTION For effective heat transfer between two fluids at different temperatures, shell and tube heat exchangers are widely utilized in a variety of industries. In processes involving heating, cooling, and condensation, their adaptability, durability, and capacity for handling high-pressure and hightemperature applications have made them vital. Researchers and engineers have investigated novel approaches, such as incorporating baffle plates and using nanofluids as the heat transfer medium in the tube side, to further optimize their performance. Baffle plates, strategically positioned inside the heat exchanger's tube side, are essential for accelerating heat transfer rates because they encourage fluid mixing, create turbulence, and prevent the formation of stagnant areas. Baffle plates improve heat exchange efficiency by rerouting the fluid's flow route, resulting in more fluid-to-wall contact and lessening fouling tendencies. Due to its ability to improve heat transfer performance without significantly
© 2024, IRJET
|
Impact Factor value: 8.226
|
ISO 9001:2008 Certified Journal
|
Page 475