Parameter Optimization of a Heat Sink using Ansys

Yogesh Baloda, Sohail Zaidi, Department of Mechanical Engineering, San Jose State University, 1 Washington Square, San Jose, CA, 95192 Anish Thalamati, Ritvik Pandey, Ishir Vaidyanath, IntelliScience Training Institute, 2139 S 10th street, San Jose, CA, 95112

As an ongoing effort at the San Jose State University, an optimized solution for thermal management of high-power LED panels is being investigated. Previous experimental work was conducted by combining various passive cooling methods including a heat sink, heat pipes, and locally developed thermosyphons. Experimental work indicated that the simultaneous use of passive cooling techniques was able to lower the operating temperature of the LED panel to a lower value (~ 40 C with 57.6% reduction) that was comparable to temperature (~38 C) that were observed by employing two cooling fans. Experimental results are presented in various conferences (AIAA -Student Conference, NCUR 2020, NCUR 2019). In the current work, an effort is being made to optimize the heat sink that is used for this study. The main objective of this project is to optimize the overall thermal dissipation of the heat sink by performing a design sensitivity study on various parameters such as fin thickness, fin height and the total number of fins. This study will create response surfaces which would provide us with parameter correlations and help figure out how each factor affects the thermal dissipation capabilities of the heat sink. The overall geometry of the heatsink currently employed in the experiment will not be changed but will be optimized to provide an effective design for this application. The high-power LED panel used for this work operates at 200W and is dimensioned at 350 mm x 210 mm. The current heatsink that matches the dimensions of the LED panel have 31 rectangular fins with a height of one inch. This heatsink will be optimized without any heat pipes or thermosyphons attached to its surface. At a later stage, the new proposed optimized design will be manufactured to conduct experiments for validating theoretical results. 

Keywords - LED, Cooling, Heatsink-Optimize, ANSYS

Additional Abstract Information

Presenters: Yogesh Baloda, Anish Thalamati, Ritvik Pandey, Ishir Vaidyanath

Institution: San Jose State University

Type: Poster

Subject: Engineering

Status: Approved

Time and Location

Session: Poster 6
Date/Time: Tue 2:00pm-3:00pm
Session Number: 4599