Local thermal measurements of a confined array of impinging liquid jets for power electronics cooling

John F. Maddox, Roy W. Knight, Sushil H. Bhavnani

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

13 Scopus citations

Abstract

The local surface temperature, heat flux, heat transfer coefficient, and Nusselt number were measured for an inline array of circular normal jets of single phase liquid water impinging on a copper block. An experimental 2-D surface map was obtained by translating the jet array relative to the sensors. The effects of variation in jet height, nozzle length, and Reynolds number were investigated. The local maximum heat transfer coefficients were observed within the stagnation region for all configurations with secondary peaks occurring halfway between the jets. The maximum local heat transfer coefficient of 15,600W=m2K and local Nusselt number of 80.5 were observed for H/Dn = 1, Ln/Dn = 2, and ReDn = 14,000; while the maximum surface average heat transfer coefficient of 13,700W=m2K and average Nusselt number of 71.0 were observed for H/Dn = 3, Ln/Dn = 0, and ReDn = 14,000.

Original languageEnglish
Title of host publication31st Annual Semiconductor Thermal Measurement and Management Symposium, SEMI-THERM 2015 - Proceedings
Pages228-234
Number of pages7
ISBN (Electronic)9781479986002
DOIs
StatePublished - Apr 30 2015
Event31st Annual Semiconductor Thermal Measurement and Management Symposium, SEMI-THERM 2015 - San Jose, United States
Duration: Mar 15 2015Mar 19 2015

Publication series

NameAnnual IEEE Semiconductor Thermal Measurement and Management Symposium
Volume2015-April
ISSN (Print)1065-2221

Conference

Conference31st Annual Semiconductor Thermal Measurement and Management Symposium, SEMI-THERM 2015
Country/TerritoryUnited States
CitySan Jose
Period3/15/153/19/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

  • automotive
  • confined jet
  • jet array
  • jet impingement cooling
  • liquid cooling
  • local heat flux
  • power electronics
  • submerged jet

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

Fingerprint

Dive into the research topics of 'Local thermal measurements of a confined array of impinging liquid jets for power electronics cooling'. Together they form a unique fingerprint.

Cite this