Design of Cast Pin Fin Coldwalls for Air-Cooled Electronics SystemsSource: Journal of Electronic Packaging:;2004:;volume( 126 ):;issue: 001::page 67DOI: 10.1115/1.1648063Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: At low to moderate Reynolds numbers, cast pin fin coldwalls provide the best performance and lowest unit cost for air-cooled electronics systems. Until recently, insufficient data existed to design coldwalls with moderate length pin fins for electronics systems. Empirical correlations for the Fanning friction factor, f=f(S/d,T/d,L/d,Red), and the Colburn j-factor, j=j(S/d,T/d,L/d,Red), were previously developed for two flow regimes with a transition Reynolds number, Retrn, separating the two regimes. Using these correlations, the effect of configuration on the design is discussed and a design procedure is proposed. Example problems are presented for (1) a system cooled by an environmental control system, and (2) a system cooled by ambient air using a fan.
keyword(s): Flow (Dynamics) , Design , Pressure drop , Electronics AND Heat transfer ,
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| contributor author | B. Elliott Short | |
| contributor author | Peter E. Raad | |
| contributor author | Donald C. Price | |
| date accessioned | 2017-05-09T00:12:45Z | |
| date available | 2017-05-09T00:12:45Z | |
| date copyright | March, 2004 | |
| date issued | 2004 | |
| identifier issn | 1528-9044 | |
| identifier other | JEPAE4-26228#67_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/129891 | |
| description abstract | At low to moderate Reynolds numbers, cast pin fin coldwalls provide the best performance and lowest unit cost for air-cooled electronics systems. Until recently, insufficient data existed to design coldwalls with moderate length pin fins for electronics systems. Empirical correlations for the Fanning friction factor, f=f(S/d,T/d,L/d,Red), and the Colburn j-factor, j=j(S/d,T/d,L/d,Red), were previously developed for two flow regimes with a transition Reynolds number, Retrn, separating the two regimes. Using these correlations, the effect of configuration on the design is discussed and a design procedure is proposed. Example problems are presented for (1) a system cooled by an environmental control system, and (2) a system cooled by ambient air using a fan. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Design of Cast Pin Fin Coldwalls for Air-Cooled Electronics Systems | |
| type | Journal Paper | |
| journal volume | 126 | |
| journal issue | 1 | |
| journal title | Journal of Electronic Packaging | |
| identifier doi | 10.1115/1.1648063 | |
| journal fristpage | 67 | |
| journal lastpage | 73 | |
| identifier eissn | 1043-7398 | |
| keywords | Flow (Dynamics) | |
| keywords | Design | |
| keywords | Pressure drop | |
| keywords | Electronics AND Heat transfer | |
| tree | Journal of Electronic Packaging:;2004:;volume( 126 ):;issue: 001 | |
| contenttype | Fulltext |