Effect of a new type staggered pin fin configuration on flow boiling characteristics of micro-heat sinks

Markal, Burak; Kul, Beyzanur

doi:10.1007/s40430-023-04483-5

J Braz. Soc. Mech. Sci. Eng.

2023

DOI: 10.1007/s40430-023-04483-5

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Effect of a new type staggered pin fin configuration on flow boiling characteristics of micro-heat sinks

Burak Markal,

Beyzanur Kul

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Cited by 4 publications

References 33 publications

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Optimizing thermal performance of pin-fin arrays using Bayesian methods for turbine cooling

Mihalko,

Basak

2024

International Journal of Heat and Mass Transfer

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Optimizing thermal performance of pin-fin arrays using Bayesian methods for turbine cooling

Mihalko,

Basak

2024

International Journal of Heat and Mass Transfer

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Flow boiling in novel radial microchannels for cooling of electronic devices and modules of annular temperature distribution

Cao,

Li,

et al. 2025

International Journal of Heat and Mass Transfer

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Cooling high heat flux with flow boiling in 2D-structured radial microchannel heat sink

Huang,

Yan,

Pan

2024

J. Micromech. Microeng.

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This work proposes a novel 2D-structured radial microchannel heat sink (RMHS) to effectively dissipate high heat flux, which owns easily manufactured characteristics. The RMHS is formed by orderly arranged pin fins involving two branching microchannel structures. The fluid flows into the RMHS through the central inlet and then experiences the continuous split and mixing imposed by the branching structures. The generated vapor bubble experiences a frequent breakup and coalescence process with the boiling phenomenon, among which the thin liquid film thickness can be triggered. The RMHS is fabricated using the silicon etching technique. A series of visualization experiments are conducted to test the performance of RMHS and reveal the related physical mechanisms. The evolution of bubble dynamics within the RMHS is recorded with a high-speed photographic system. The features mentioned above of RMHS confer excellent boiling heat transfer performance. At 600 mL/min volumetric flow rate, the maximum dissipated heat flux reaches 1035 W/cm2 with an area of 1 cm2. The present study is hoped to provide valuable insights into designing a two-phase microchannel heat sink for the thermal management of electronic devices.

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Effect of a new type staggered pin fin configuration on flow boiling characteristics of micro-heat sinks

Cited by 4 publications

References 33 publications

Optimizing thermal performance of pin-fin arrays using Bayesian methods for turbine cooling

Optimizing thermal performance of pin-fin arrays using Bayesian methods for turbine cooling

Flow boiling in novel radial microchannels for cooling of electronic devices and modules of annular temperature distribution

Cooling high heat flux with flow boiling in 2D-structured radial microchannel heat sink

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