Numerical Investigation of Heat Performance Enhancement for a Double-Pipe Heat Exchanger at Annulus with Continuous Helical Baffles using Al2O3 as Nanofluid
This document presents a numerical investigation of heat transfer enhancement in a double-pipe heat exchanger with continuous helical baffles in the annulus and either water or alumina nanofluid as the working fluid. The study varies baffle spacing, mass flow rate, and nanofluid concentration to analyze their effects on heat transfer rate, pressure drop, and thermal performance. Results show that adding helical baffles increases the fluid flow path and turbulence, enhancing heat transfer. Replacing water with nanofluid further improves heat transfer while also increasing pressure drop. Graphs comparing the different configurations are presented and agree with previous research findings. The goal is to optimize baffle design and nanofluid parameters to maximize heat transfer rate and performance for practical
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Numerical Investigation of Heat Performance Enhancement for a Double-Pipe Heat Exchanger at Annulus with Continuous Helical Baffles using Al2O3 as Nanofluid