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Parameter study of ...
Parameter study of laminar flow and heat transfer in an interrupted microchannel heat sink with ribs
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- Wang, Wei (författare)
- Harbin Institute of Technology
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- Shuai, Yong (författare)
- Harbin Institute of Technology
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- Su, Wentao (författare)
- Liaoning Shihua University
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- Li, Bingxi (författare)
- Harbin Institute of Technology
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- Tan, Yufei (författare)
- Harbin Institute of Technology
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- Sundén, Bengt (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- 2021
- 2021
- Engelska 15 s.
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Ingår i: Heat Transfer Research. - 1064-2285. ; 52:2, s. 13-27
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The enhanced heat transfer mechanism and parameter optimization of an interrupted microchannel heat sink with rectangular ribs (IMCHS-R) was numerically studied for Reynolds number ranging from 100 to 900, using ANSYS Fluent. Interrupted microchannel heat sinks with different kinds of rectangular ribs having different width, length, and locations were compared with a straight microchannel and microchannel interrupted chambers. The results indicated that the heat transfer and flow resistance were mainly strengthened at the sudden converging area and narrow channels, and the secondary flow area did not show a positive effect on heat transfer. The IMCHS-R with W2/W1 = 0.3 and L2/L1 = 0.7 presented the best behavior from both PEC and Stot-ave at Re = 500–700. The heat transfer performance can be improved 2.0 times compared to the straight microchannel heat sink and the PEC can reach a value larger than 1.5. However, the rib location has a little effect on the enhanced heat transfer performances.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Entropy analysis
- Interrupted microchannel heat sink
- Numerical simulation
- Overall heat transfer performance
- Parameter study
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- art (ämneskategori)
- ref (ämneskategori)
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