Nano akışkanlar ile kabuk ve boru ısı eşanjörlerinin geliştirilmesine ilişkin karşılaştırmalı CFD hesaplamalı çalışması

This research investigates the enhancement of shell-and-tube heat exchanger efficiency using titanium dioxide (TiO2) nanofluids through a comparative computational fluid dynamics (CFD) analysis of two cases. In the first case, cold water flowing through the tubes is heated by hot water in the shell. The second case introduces a 0.5% TiO2 nanofluid mixture to hot water, aiming to investigate its impact on heat transfer efficiency. Utilizing computer-aided design (CAD), the study models an innovative heat exchanger configuration that closely mirrors commercial dimensions but incorporates slight variations to discover new design potentials. CFD modelling employs a grid independence approach to ensure the accuracy of the results. The findings indicate an 11.44% increase in cold fluid temperature rise with the nano fluid case, demonstrating significant efficiency improvements over conventional water usage. This highlights the potential of engineered nano fluids for enhancing industrial heat recovery processes. Leveraging CAD and CFD tools for optimized design, the detailed thermal performance analysis provides profound insights into the augmented heat transfer phenomena induced by nano fluids. This research contributes to the scientific understanding and development of efficient and sustainable thermal technologies, paving the way for advanced nanotechnology-enhanced heat transfer solutions with wide-ranging implications for energy efficiency across various sectors.