The study investigates how enhancing heat transfer and thermal performance can be achieved by adding artificial roughness components to a solar air heater's (SAH) absorber panel. These roughness components create turbulence, which accelerates convective heat transfer. Using Computational Fluid Dynamics (CFD) research, the study models heat transmission and airflow inside the SAH, looking at factors like Nusselt number, friction factor, and thermal efficiency. The results demonstrate that artificial roughness significantly enhances the SAH's thermal performance as compared to a smooth duct,...
The study investigates how enhancing heat transfer and thermal performance can be achieved by adding artificial roughness components to a solar air he...
In this book heat exchanger was tested with varying fin thickness and fin itch of aluminium tube. The fin geometry, material thermal conductivity, boundary condition at the fin tip, and heat transfer coefficient (h) at the fin surface all affect how effective a composite-based fin is. Heat transfer for forced convection was calculated using an aluminum test piece with composite-based fin thicknesses of 0.5, 0.6, and 0.7mm and fin pitches of 4.23 and 6.35 mm. The findings show that a 4.23 mm spacing optimizes heat transfer, indicating that more fins are more effective. Colburn's factor (j) was...
In this book heat exchanger was tested with varying fin thickness and fin itch of aluminium tube. The fin geometry, material thermal conductivity, bou...
