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Kærn, Martin Ryhl
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Publications (5/5 displayed)
- 2023Experimental indirect cooling performance analysis of the metal 3D-printed cold plates with two different supporting elementscitations
- 2022Experimental Cooling Performance Analysis of The Metal Additive-Manufactured Cold Plate With Body-Centered Cubic (BCC) Elements for Indirect Cooling Applications
- 2011Performance of residential air-conditioning systems with flow maldistribution in fin-and-tube evaporatorscitations
- 2011Performance of residential air-conditioning systems with flow maldistribution in fin-and-tube evaporatorscitations
- 2011Analysis of flow maldistribution in fin-and-tube evaporators for residential air-conditioning systems
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article
Experimental indirect cooling performance analysis of the metal 3D-printed cold plates with two different supporting elements
Abstract
This study experimentally investigates the cooling time and performance of two new cold plate designs manufactured via selective laser melting processusing body-centred cubic (BCC) and pillar elements. The plates arecooled down from the initial surface temperature of 45 °C to the targetsurface temperature of 32.5 °C under tropical conditions at threedifferent volume flow rates and two different inlet water temperatures.The minimum cooling time is found at 30 s and 63 s at the highest volumeflow rate and the lowest inlet water temperature for the pillar- andBCC-filled plates, respectively. The greatest plate and system COPvalues are 1195.1 and 6.8 for the BCC-filled plate and 1192.0 and 6.2for the pillar-filled plate, respectively, at the minimum flow rate andthe inlet water temperature. The performance evaluation criterion rangeis 1.25 to 1.28 and 2.12 to 2.52 for the BCC- and pillar-filled plates,respectively. The heat transfer coefficientdramatically increases by rising the volume flow rate at the low inletwater temperature case but the increasing trends become slighter at thehigh inlet water temperature case. Tropical climate results in high dew point temperatures, therefore, cooling with high inlet water temperature is found ineffective.