Published Paper Details:

Enhancing heat transfer efficiency is essential for optimizing thermal systems used in heat exchangers, refrigeration units, and power plants. Traditional smooth tubes often exhibit limited heat transfer due to the formation of a stable thermal boundary layer, reducing overall performance. This project investigates the design and analysis of dimpled tubes as a passive heat transfer enhancement technique. Dimples introduce localized turbulence, disrupt the boundary layer, and promote secondary flow structures, leading to improved thermal performance with minimal pressure drop penalties.The study involves both experimental and computational fluid dynamics (CFD) analysis to evaluate the effects of dimple geometry, depth, spacing, and arrangement on heat transfer characteristics and flow resistance. Key performance parameters, such as Nusselt number, friction factor, and thermal enhancement factor, are analyzed to determine the optimal dimple configuration. The results of this study aim to provide insights into the effective design of dimpled tubes, balancing heat transfer enhancement with pressure drop considerations. The findings will contribute to the development of more efficient thermal systems, reducing energy consumption and improving industrial heat exchange applications.