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Optimization of Nozzle Arrangement in a Liquid Direct Contact Cooling System : Constant Inlet Flowrate Analysis  

Kim Won-Nyun (R&D Team, VD Division, Samsung Electronics)
Kim Seo-Young (Thermal/Flow Control Research Center, KIST)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.18, no.5, 2006 , pp. 402-409 More about this Journal
Abstract
For the design of a liquid direct contact cooling system, thermal and hydraulic analysis has been carried out. Well-known Zukauskas correlations are used to estimate the Nusselt number between the liquid refrigerant columns and the inlet airflow. The inlet air velocity is set at a typical value used in an actual showcase. For a constant column number, the best nozzle arrangement is determined for the maximum heat transfer. Heat transfer increases as the transverse pitch of the refrigerant column decreases. Among all the cases dealt with in the present study, the staggered arrangement with 140-columns of $14{\times}10$ shows the best thermal peformance and the expected temperature drop is $27.8^{\circ}C$. The effect of downstream refrigerant columns on the overall thermal performance is investigated as well.
Keywords
Showcase; Zukauskas correlation; Liquid direct contact cooling;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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