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Hydraulic and thermal performances of micro pin fin heat sink with increasing pin fin height

Case Studies in Thermal Engineering, ISSN: 2214-157X, Vol: 53, Page: 103912
2024
  • 2
    Citations
  • 0
    Usage
  • 12
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    2
  • Captures
    12
  • Mentions
    1
    • News Mentions
      1
      • News
        1

Most Recent News

Research on Thermal Engineering Published by Researchers at University of Shanghai for Science and Technology (Hydraulic and thermal performances of micro pin fin heat sink with increasing pin fin height)

2023 DEC 29 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Daily News -- Current study results on thermal engineering have been published.

Article Description

This study investigates numerically the impacts of pin fins (PF) with varying height on the pressure drop Δ P, the bottom average temperature T bw, the Nusselt number Nu and the thermal performance factor η of a micro pin fin heat sink (MPFHS). Three groups of PF structure characterized by a different height increase mode are introduced: Case 1: structure with constant height step, Case 2: structure with increasing height step, and Case 3: structure with decreasing height step. The findings in this work show that Δ P and Nu increase but T bw decreases with the increasing height step for Case 1 and with the increasing increment of the height step for Case 2 and Case 3. When comparing their thermal and hydraulic performances, Case 2 demonstrates the best thermal performances, whereas Case 3 has the best hydraulic performance when the total height steps of PFs in all three kinds of heat sink are kept constant. Furthermore, this study finds that the PF with increasing height can always enhance η of the MPFHS compared to PF with uniform height. This finding validates the performance advantage of the PF with increasing height and offers the potential technique for the optimization design of MPFHS.

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