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http://dx.doi.org/10.3795/KSME-B.2003.27.4.496

Thermal Transport from an Aluminum Foam Heat Sink in a Confined Impinging Air Jet  

Hwang, Jun (국민대학교 대학원 기계공학과)
Kim, Seo-Young (KIST 열유동제어센터)
Kang, Byung-Ha (국민대학교 기계.자동차공학부)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.27, no.4, 2003 , pp. 496-503 More about this Journal
Abstract
An experimental study has been performed on thermal transport from an aluminum foam heat sink under a confined impinging air jet. Three kinds of aluminum foam heat sinks with 10, 20 and 40 PPI and a conventional pin-fin heat sink are tested in the present study. The jet Reynolds number is varied in the range of Re=667～5672 The effect of the confinement disk diameter and the distance between the confinement disk and the heater surface on the averaged Nusselt number is investigated in detail. The results are also compared with those of the unconfined impinging air jet. The critical distance, at which thermal performance shows a minimum compared to the unconfined jet impinging, will be described in terms of the Reynolds number and the pore density of the aluminum foam.
Keywords
Electronics Cooling; Aluminum Foam; Heat Sink; Confined Jet Impingement; Heat Transfer Enhancement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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