An Investigation Of Convective Heat Transfer In Microchannel With Piranha Pin Fin

Keywords

Microchannel; Piranha Pin Fin; Single-phase heat transfer

Abstract

In this paper, we present an experimental and numerical study on a Piranha Pin Fin (PPF) micro scale heat sinks. The PPFs were designed to enhance heat transfer by manipulating the flow field, selectively venting the fluid, and adding surface area. The hydraulic and thermal performances are studied for Reynolds numbers ranging from 508 to 2114 based on the channel hydraulic diameter. A conjugate convection/conduction heat transfer model was developed with COMSOL software, which showed good agreement to experiments. Velocity field and temperature distribution obtained from the model were also discussed to obtain a better understanding of the heat sink performance. Extraction effect was evaluated and analyzed. Friction factor and Nusselt number were obtained and compared with available correlations.

Publication Date

12-1-2016

Publication Title

International Journal of Heat and Mass Transfer

Volume

103

Number of Pages

1125-1132

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ijheatmasstransfer.2016.07.069

Socpus ID

84982291253 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84982291253

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