A novel curved-corrugated channel: Thermal-hydraulic performance and design parameters with nanofluid

Abstract

In the present study, the impact of nanofluids has been analyzed in a corrugated channel with baffles. The primary objective of this study is to evaluate the thermodynamic performance of both single and hybrid nanofluids in relation to different Reynolds numbers and nanoparticle volume concentrations for the corrugated pipe. The unique design of the corrugation has a chance to enhance the heat transfer rate. For a uniform heat flux on the surface wall, numerical simulations are conducted for different element sizes while the Reynolds no is held constant. Performance analysis of hybrid nanofluids Al2O3-CuO and TiO2-SiO2 has been carried out. The thermophysical properties of nanofluids have been calculated using various correlations. Computational fluid dynamics (CFD) simulations are performed to gain insights into the flow and thermal behavior inside the corrugated pipe. These simulations provide detailed information on velocity profiles, temperature gradients, and pressure distributions, facilitating a comprehensive understanding of the heat transfer mechanisms involved. The findings of this research demonstrate that the implementation of corrugated pipe significantly enhances heat transfer performance compared to traditional smooth pipes. The increased surface area provided by the corrugations promotes enhanced convective heat transfer, while also altering flow characteristics to maximize thermal efficiency. A parametric study on the E shaped baffles has been carried out to show the change in the Thermo-hydraulic performance and fluid nature in the pipe.