Experimental and Numerical Study of 3-D Printed Direct Jet Impingement Cooling for High-Power, Large Die Size Applications

Wei, Tiwei; Oprins, Herman; Cherman, Vladimir; Yang, Zhi; Rivera, K.; Plas, G. Van der; Pawlak, Bartlomiej J.; England, Luke; Beyne, Eric; Baelmans, Martine

doi:10.1109/tcpmt.2020.3045113

Cited by 13 publications

(1 citation statement)

References 17 publications

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“…A simulation study by Rattner [9] found the use of interspersed outlets to not only improve average heat transfer, but also reduce incurred pressure drop and improved temperature uniformity. This, along with the fact that the cooling performance seen on a small area becomes scalable to large areas with the inclusion of such interspersed outlets has been shown by Wei et al [10,11]. They showed that when the dimensions of nozzle pitch, inlet and outlet diameter, and nozzleto-target spacing are kept constant, the cooler exhibits unit cell behavior when scaling, with the cooling performance being dependent only on the flow rate of coolant per nozzle.…”

Section: Introductionmentioning

confidence: 84%

Effects of Nozzle Pitch Adaptation in Micro-Scale Liquid Jet Impingement

Elsinger,

Oprins,

Cherman

et al. 2024

Fluids

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With ever increasing integration density of electronic components, the demand for cooling solutions capable of removing the heat generated by such systems grows along with it. It has been shown that a viable answer to this demand is the use of direct liquid jet impingement. While this method can generally be scaled to the cooling of large areas, this is restricted by the necessity of coolant flow rate scaling. In this study, the benefits and restrictions of using increased nozzle pitch to remedy the increasing demand for overall flow rate are investigated. To this end, a model is validated against experimental findings and then used for computational fluid dynamics simulations, exploring effects of the pitch change for micro-scale nozzle diameters and nozzle-to-target spacings. It is found that while this method is efficient in adjusting the tradeoff between total coolant flow rate and pressure drop up to a certain pint, the occurrence of a hydraulic jump in the cavity causes a deterioration of its effect for large nozzle pitches.

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Section: Introductionmentioning

confidence: 84%