Impact of Corrugation Surface and Nanofluid Flow on Hydrothermal Performance: A Review

Abstract

This article reviews several parts of previous studies, including both numerical and experimental investigations that examined the effects of heat transfer and pressure drop when using nanofluids or conventional fluids. The study presents design parameters, practical scales, and summarized results of earlier work in tabular form, accompanied by appropriate discussion. It also examines the influence of different types of nanoparticles(including metal oxides, nonmetals, and metals)on the basic thermodynamic and hydraulic behavior of working fluids, as well as the role of base fluids such as water and air. The review highlights that some research topics remain attractive and worth further exploration due to their simple design and high performance. In contrast, other topics are hindered by limitations, such as the challenges of applying complex geometries or the negative effects of increased pressure drop and nanoparticle agglomeration on channel walls, which can obstruct heat transfer. Overall, this review provides a foundation for more advanced studies on the performance of nanofluids in corrugated channel systems. These insights are valuable for guiding the design of compact and energy-efficient heat exchangers, with potential benefits in reducing energy consumption and environmental impact. Future research should focus on improving nanoparticle dispersion techniques, mitigating pressure drop penalties, and exploring hybrid nanofluids and innovative channel geometries to achieve even better hydrothermal performance.