Comparative Analysis of Heat Transfer Coefficients in Plain Tube and Twisted Tube Radiators with Variable Mass Flow Rates Using Al2O3-Water and CuO-Water Nanofluids

Abstract

This study compares heat transfer coefficients in Plain Tube andTwisted tube radiators utilizing Al₂O₃-water and CuO-water nanofluids at different mass flow rates. The enhancement of heat transfer in automotive cooling systems improves engine efficiency and performance. In present work, Al₂O₃-water and CuO-water nanofluids were prepared and tested in automobile radiator experimental set-up at varying mass flow rates. Experimental results show nanofluids increase heat transfer coefficients over water-based coolants. CuO-water outperformed Al₂O₃-water at higher mass flow rates. The findings suggest that optimizing nanofluid and flow conditions can improve automobile cooling systems. This study provides valuable inputs for the design and operation of advanced radiator systems, improving thermal management tactics in automotive applications.