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The influence of the nozzle geometry on the heat transfer and pressure drop from impinging liquid jet arrays for electronics thermal management

Project coordinator(s)

Dr. Tony Robinson (PI)
Email: [javascript protected email address]
Tel: +353 1 896 3919

Prof. Darina Murray
Email: [javascript protected email address]
Tel: +353 1 896 1129

Post-graduate Staff

Mr. Brian Whelan

Description

From a thermal standpoint, adding direct liquid cooling in the form of impinging liquid jets has many attractive features for electronics thermal management. This is largely due to the fact that impinging jets have the highest known single phase heat transfer coefficient. As such, liquid jet impingement cooling offers the desirable property of very high heat flux removal rates. Furthermore, the pressure drop across the nozzle that is required to form the jet does not depend on the heat transfer mechanisms occurring at the impingement surface. This is in contrast to liquid cooling strategies such as two phase microchannel flow where the heat transfer, void fraction and pressure drop are all interdependent. This desirable characteristic presents the possibility of optimizing the jet configuration for minimal volumetric flow rate and pumping power.

The influence of the nozzle geometry on the heat transfer and pressure drop from impinging liquid jet arrays for electronics thermal management

Funding Body

Science Foundation Ireland (CSET-CTVR)