Paper Contents
Abstract
Heat exchangers are critical in numerous industrial applications, including power generation, chemical processing, HVAC systems, and automotive engineering, where efficient thermal management is essential. This study investigates the enhancement of thermal performance in shell and tube heat exchangers by integrating twisted tape inserts and aluminum oxide (Al2O3) nanofluids. Twisted tape inserts induce turbulence and improve fluid mixing, significantly increasing convective heat transfer coefficients. Concurrently, Al2O3 nanofluids, known for their excellent thermal conductivity, enhance the base fluid's thermal properties. The research focuses on optimizing heat exchanger configurations with varying pitches and turns of twisted tapes and different concentrations of nanofluids. Comparative analyses show that the combination of twisted tape inserts and Al2O3 nanofluids markedly improves heat transfer rates and overall heat transfer coefficients. The study validates these enhancements through both experimental and computational fluid dynamics (CFD) analyses, demonstrating a 55% increase in heat transfer rate and a 42% higher overall heat transfer coefficient in water-nanofluid arrangements compared to water-water systems. These findings contribute valuable insights into the optimization of heat exchanger design, paving the way for more efficient and sustainable thermal management solutions across various industrial applications.
Copyright
Copyright © 2024 Ravi Sahu. This is an open access article distributed under the Creative Commons Attribution License.
