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Heat transfer and pressure drop performance of additively manufactured polymer heat spreaders for low-weight directed cooling integration in power electronics

  • Reece Whitt
  • , Bakhtiyar Nafis
  • , David Huitink
  • , Zhao Yuan
  • , Amol Deshpande
  • , Balaji Narayanasamy
  • , Fang Luo
  • University of Arkansas, Fayetteville

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

14 Scopus citations

Abstract

This study aims to provide an additive manufacturing-based pathway for addressing issues concerned with the reliability of high-density electronic packaging. It compares the performance of a non-metallic, additively manufactured heat spreader with that of a conventional cold plate. CFD software is first used to evaluate the heat spreaders with respect to cooling capability. Furthermore, the device is experimentally tested in a flow loop and its performance compared to that of the cold plate. Initial simulation results show the additively manufactured plastic heat sinks provide a uniform cooling profile and maintain lower maximum temperatures seen in the power module. Experimental results show a lower pressure drop seen is seen in the heat spreader over a wide range of flow rates. Moreover, the use of plastics shows a clear discount of EMI while keeping the material cost and the device weight at a reduced level.

Original languageEnglish
Title of host publicationProceedings of the 18th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2019
PublisherIEEE Computer Society
Pages451-455
Number of pages5
ISBN (Electronic)9781728124612
DOIs
StatePublished - May 2019
Event18th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2019 - Las Vegas, United States
Duration: May 28 2019May 31 2019

Publication series

NameInterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITHERM
Volume2019-May
ISSN (Print)1936-3958

Conference

Conference18th InterSociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems, ITherm 2019
Country/TerritoryUnited States
CityLas Vegas
Period05/28/1905/31/19

Keywords

  • Array
  • Convection
  • Flow
  • Fluid
  • Heat spreading
  • Impingement
  • Internal geometry
  • Jet
  • Manifold

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