Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Experimental Investigations of Turbulence Promoters Applied to Heat Transfer Applications
Submission Author:
Rafael Gontijo , DF
Co-Authors:
Alencar Júnior, Tatiana Silva Ferreira, Rafael Gontijo
Presenter: Alencar Júnior
doi://10.26678/ABCM.COBEM2017.COB17-0624
Abstract
The work provides an experimental investigation on the heat transfer rates exchanged between a heated device and a forced flow inside a channel. The focus of our approach is the evaluation of the turbulence promoters as a geometric deviced used to optimize the cooling process of electronic devices. The study is performed on a customized experimental bench, designed and built in the facilities of the Vortex Group at the University of Brasília. We present relevant results on the behaviour of the Nusselt number as a function of the Reynolds number for six different configurational arrangements of cylindrical-like turbulence promoters. We also present scaling laws that justify our findings. The influence of each geometry on the pressure drop inside the channel is also investigated for different Reynolds numbers.
Keywords
Heat transfer, Turbulence promoters, forced convection, Electronic components
