Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
EXPERIMENTAL INVESTIGATION OF A STRIP FINS HEAT SINK
Submission Author:
William Denner Pires Fonseca , SP
Co-Authors:
William Denner Pires Fonseca, Rafael Franzin Rodrigues Rosa, Carlos Altemani
Presenter: William Denner Pires Fonseca
doi://10.26678/ABCM.COBEM2019.COB2019-1607
Abstract
An experimental investigation was performed to obtain the flow and convective heat transfer characteristics of an inline strip fin heat sink cooled by forced airflow. Laboratory tests were conducted under steady state conditions with a heat sink mounted in a rectangular duct with no tip bypass. To present the thermal results, a convective thermal resistance model was adopted and the heat transfer coefficient was based on the flow inlet temperature in the heat sink. The experimental results included the flow pressure drop through the heat sink, the average Nusselt number of the flow in the interfin channels and the heat sink thermal resistance. A comparison was made with results predicted by correlations from the literature for a parallel plates heat sink with the same geometry of the strip fins heat sink. The results indicated that for the same flow rate, the strip fins heat sink presents a larger airflow pressure drop, but its average Nusselt number is larger, so that this heat sink presents a smaller thermal resistance.
Keywords
heat sink, Inline Strip Fins, Experimental results
