An experimental investigation of the thermal interaction of electro-optical components on a printed circuit board in natural and forced convection

Amy S. Fleischer, Randy D. Weinstein

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

Abstract

The thermal interaction of an electrical and an optical component located on the same vertical circuit board is studied experimentally. The effects of component proximity and convective flow rate on overall power dissipation from each component are analyzed. The components are represented by isothermal heat sources mounted to a standard 1.59mm (0.0625 in) thick FR4 circuit board. In natural convection situations, when the spacing between components is great enough that the component thermal footprints do not interfere, the power dissipation reaches a maximum "plateau" value that is independent of spacing. If the components are located close enough together that their thermal footprints interfere then the total power dissipation is highly dependent on component spacing (relative location of the electrical source and the geometric positioning of both sources). In forced convection, the total power dissipated increases with both Reynolds number and component spacing. As in natural convection, the relative location of the electrical sources and the positioning of the sources are found to have a strong influence on power dissipation.

Original languageEnglish
Title of host publicationProceedings of the 2003 ASME Summer Heat Transfer Conference, Volume 3
Pages535-539
Number of pages5
DOIs
StatePublished - 2003
Externally publishedYes
Event2003 ASME Summer Heat Transfer Conference (HT2003) - Las Vegas, NV, United States
Duration: 21 Jul 200323 Jul 2003

Publication series

NameProceedings of the ASME Summer Heat Transfer Conference
Volume2003

Conference

Conference2003 ASME Summer Heat Transfer Conference (HT2003)
Country/TerritoryUnited States
CityLas Vegas, NV
Period21/07/0323/07/03

Keywords

  • Electronics Cooling
  • Forced Convection
  • High Heat Flux
  • Natural Convection
  • Opto-Electronics
  • Thermal Management of Electronics

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