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Optimization of PCB Heater Heating Profile for Power-Efficient Humidity Management in Electronics Enclosures
Jönköping University, School of Engineering, JTH, Computer and Electrical Engineering. (Robust Electronics)
2011 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

In this master thesis, automated optimization simulation laboratory is developed and implemented for power-efficient humidity management. A concept of local heating as a humidity management measure in electronics enclosure in severe environmental conditions has been evaluated. Environmental conditions included an instant change of the temperature from 0o C to 24o C and relative humidity 30% to 95%. Evaluation process has been developed as an optimization problem solved by integrating CFD modeling and excel data sheet calculations into the automation simulation workflow environment. Heating profile vector has been defined as design variable and optimized objective was defined as the difference between surface temperature of heated IC package and local dew point temperature. The task included interfacing between floTHERM and OPTIMUS tools, sensitivity analysis and CFD model simplification in order to obtain time efficient simulation models subsequently used in optimization process. Ultimate goal in the optimization was to obtain a power efficient heating profile for the local heater that keeps local relative humidity at low level thereby minimizing moisture induced electronic reliability problems.

Place, publisher, year, edition, pages
2011. , 3/93 p.
Keyword [en]
Humidity management of electronics, Electronics Enclosure, Computational fluid dynamics (CFD), Virtual prototyping, Optimization, Workflow automation, Genetic and Self-Adaptive Evolutionary algorithm.
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering Other Environmental Engineering Computational Mathematics
Identifiers
URN: urn:nbn:se:hj:diva-14688OAI: oai:DiVA.org:hj-14688DiVA: diva2:399450
Presentation
2010-12-20, E3231, Engineering Department-Jönköping University, Jönköping, Sweden, 15:00 (English)
Uppsok
Technology
Supervisors
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Available from: 2011-02-28 Created: 2011-02-22 Last updated: 2011-02-28Bibliographically approved

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68bf94ff648caa99f3fe8d85acb6c17bf346ab6fd9c568f56cab8f175c76d67e3bae301e1ca4c6f7c186d1dacbe2c1771f2168000dd9d96850ce99b0926dc406
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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
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