Το work with title Comparison and simulation of heat transfer between smooth and non-smooth surface of heat exchangers by Balis Dimitrios is licensed under Creative Commons Attribution 4.0 International
Bibliographic Citation
Dimitrios Balis, "Comparison and simulation of heat transfer between smooth and non-smooth surface of heat exchangers", Diploma Work, School of Production Engineering and Management, Technical University of Crete, Chania, Greece, 2025
https://doi.org/10.26233/heallink.tuc.102815
The thesis focuses on comparing the thermal performance and pressure drop between a grooved heat exchanger and a smooth one, using the Nusselt number and pressure drop as key parameters. Grooves are believed to enhance heat transfer by increasing fluid mixing and creating turbulent flows, which improve the efficiency of thermal convection. However, this enhancement in heat transfer is typically accompanied by a higher pressure drop, which can impact the overall energy efficiency of the system.The study is conducted using computational fluid dynamics (CFD) via the Ansys software, allowing for the simulation of fluid flows and heat transfer in complex geometries. The analysis examines how the grooved geometry affects the distribution of temperature, flow velocity, and pressure within the heat exchangers. The results indicate that while grooved heat exchangers provide better thermal performance, this comes at the cost of increased pressure drop, which may require more energy to maintain fluid flow.The ultimate goal of the thesis is to determine which type of heat exchanger is more efficient under different operating conditions, providing insights for the optimization of heat transfer systems in industrial and energy applications. The balance between thermal efficiency and energy consumption is a critical factor in determining the best design for various practical uses.