Record Details

Numerical investigation on heat sink with fluid pockets for high power LEDs

Online Publishing @ NISCAIR

View Archive Info
 
 
Field Value
 
Authentication Code dc
 
Title Statement Numerical investigation on heat sink with fluid pockets for high power LEDs
 
Added Entry - Uncontrolled Name Sangmesh; Department of Mechanical Engineering, BMS Institute of Technology and Management, Bangalore 560 064, India
Narayana, Gopalakrishna Keshava; Jyothy Institute of Technology, Bangalore 560 082, India
Kumarasamy, Sudhakar ; Faculty of Mechanical and Automotive Engineering Technology, University Malaysia Pahang, Pekan, Pahang 26600, Malaysia
Samykano, Mahendran ; Department of Mechanical Engineering, College of Engineering, University Malaysia Pahang, Gambang, Pahang 26300, Malaysia
Thyagatur Panchaksharaiah, Gowrishankar ; Department of Mechanical Engineering, R L Jalappa Institute of Technology, Bangalore, Karnataka, India Nagamangala Taluk, Mandya District, Karnataka State, India
Patil, Nagraj ; School of Engineering and Technology, Jain Deemed to be University, Bangalore 560 069, India
NA
 
Uncontrolled Index Term ANSYS, De-ionized water, HSFP, LED, Heat sink
 
Summary, etc. <p><span style="font-size: 9pt; font-family: &quot;Times New Roman&quot;, serif;">The present numerical study explores the use of fluid pockets in the heat sink to enhance heat transfer in high power LEDs. A robust heat sink model has been presented and evaluated the heat transfer characterization in terms of reduced LED junction temperature <em>via</em> natural convection and studied the effect of fluid flow in the pockets of heat sink. The junction temperature of the LED has been measured, for enhanced heat transfer and the results have been compared with conventional heat sink. The cooling fluid inside the fluid pockets absorbs heat generated by LEDs resulting in exchange of heat from heat sink surface to the liquid medium in the fluid pockets. The heat gain causes the fluid to flow against gravity due to density variation, raises the mixture of liquid inside the fluid pockets and flow back by gravity effect when it is condensed by the extended fin surface. The performance of the heat sink with fluid pockets has been found to be better than normal heat sink of same geometry due to its ability to conduct heat by the presence of liquid. Fluid pockets filled with <br /> de-ionized water in the heat sink have a noticeable effect on heat removal rate. A series of case studies have been done for accurate and efficient heat transfer output; these results then have been used as the benchmark to validate the experimental results. The numerical results have been found to be in good agreement with experimental results.</span></p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2021-02-23 14:12:30
 
Electronic Location and Access application/pdf
http://op.niscair.res.in/index.php/IJEMS/article/view/29175
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 27, ##issue.no## 5 (2020): IJEMS- OCTOBER 2020
 
Language Note en
 
Terms Governing Use and Reproduction Note Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India © 2015. The Council of Scientific &amp; Industrial Research, New Delhi.