Applications of advanced cooling technology in avionics system for aerospace vehicle

Qingjun Cai*, Chung-Lung Chen, Julie F. Asfia

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

6 Scopus citations


With extensive applications of high power electronic devices in modern avionics systems, more effective heat transfer technology has to be developed and applied to solve high heat flux/load cooling issues. Pulsating heat pipe (PHP), an advanced passive cooling technology, which has a simple internal structure, lower manufacture cost, lightweight, and high heat transfer capability, is selected to improve the avionics system thermal management in this paper. Investigation efforts are focused on reducing thermal resistance from heat sources on print circuit board (PCB) to external heat sink of avionics chassis by employing PHP technology. Experimental results indicate that the PHP is capable of longer distance and higher power heat transfer, and temperature gradients are significantly reduced comparing to traditional thermal designs. Additionally, the PHP performance characteristics, such as temperature fluctuation, orientation and transient effects are explored and analyzed in this application.

Original languageEnglish
Number of pages8
StatePublished - 1 Dec 2005
Event43rd AIAA Aerospace Sciences Meeting and Exhibit - Reno, NV, United States
Duration: 10 Jan 200513 Jan 2005


Conference43rd AIAA Aerospace Sciences Meeting and Exhibit
CountryUnited States
CityReno, NV

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