Review of Two-phase Electronics Cooling for Army Vehicle Applications

Report No. ARL-TR-5323
Authors: Darin Sharar, Nicholas R. Jankowski, and Brian Morgan
Date/Pages: September 2010; 42 pages
Abstract: Implementation of many Army vehicle electronics technologies is becoming increasingly dependant on the ability to dissipate large amounts of waste heat. In the past, these technologies have been primarily cooled with active and passive air or single-phase heat sinks. While single-phase active and passive cooling methods are well-characterized, making system implementation predictable and dependable, these schemes are not providing the cooling performance necessary for future high-heat-flux electronic systems. By comparison, two-phase cooling has demonstrated the ability to provide net benefits in heat dissipation, size, weight, and overall power consumption necessary for future electronic systems. However, unlike single-phase cooling, two-phase cooling performance is difficult to estimate, making system integration unpredictable and often unreliable. Therefore, two-phase research and system integration have become major focal points for academic and professional organizations, alike, aimed towards resolving the uncertainties associated with two-phase cooling and developing the next generation of high-heat dissipation techniques. This report reviews the major two-phase cooling approaches in context of Army vehicular applications.
Distribution: Approved for public release
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Last Update / Reviewed: September 1, 2010